A novel praseodymium complex [PrCl(H_2O)_3(L)(HL)]_nnCl(1, HL = 3-hydroxy-2-methylquinoline-4-carboxylic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction....A novel praseodymium complex [PrCl(H_2O)_3(L)(HL)]_nnCl(1, HL = 3-hydroxy-2-methylquinoline-4-carboxylic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in P2_1 space group of the monoclinic system, with a = 7.3146(2), b = 9.3963(3), c = 17.4872(5) ?, β = 96.818(3)°, V = 1193.40(6) ?~3, C_(22)H_(23)Cl_2N_2O_9Pr, M_r = 671.23, Z = 2, D_c = 1.868 g/cm^3, μ(MoKα) = 2.322 mm^(-1) and F(000) = 668. The praseodymium ion is surrounded by seven oxygen atoms and one chlorine atom to yield a slightly distorted square antiprism. Complex 1 is characterized by a one-dimensional chain-like structure. A two-dimensional supramolecular layer is formed via hydrogen-bonding interactions. Solid-state photoluminescence spectrum reveals that it shows red emission. The emission bands are ascribed to the characteristic emission of the 4 f electron transitions of ~3P_0 → ~3H_J(J = 5 and 6) and ~3P_0 → ~3F_4 of Pr^(3+) ions. Solid-state UV/Vis diffuse reflectance spectroscopy exhibits that it has an optical band gap of 2.75 eV.展开更多
By introducing the Dirac δ-function and Pauli exclusion principle in the presence of superstrong magnetic fields （SMFs）, we investigate the influence of SMFs on beta decay and the change rates of electron fraction ...By introducing the Dirac δ-function and Pauli exclusion principle in the presence of superstrong magnetic fields （SMFs）, we investigate the influence of SMFs on beta decay and the change rates of electron fraction （CREF） of nuclides 56Fe, 62Ni, 64Ni and 6SNi in magnetars, which are powered by magnetic field energy. We find that the magnetic fields have a great influence on the beta decay rates, and the beta decay rates can decrease by more than six orders of magnitude in the presence of SMFs. The CREF also decreases by more than seven orders of magnitude in the presence of SMFs.展开更多
A novel iridium-complex,（BPPBI） 2 Ir（2-TFDBC）[BPPBI=2-（biphenyl-4-yl）-1-phenyl-1H-benzo[d]imidazole,2-TFDBC=1-（9-ethyl-9H-carbazol-2-yl）-4,4,4-trifluorobutane-1,3-dione],was synthesized,and its structure and c...A novel iridium-complex,（BPPBI） 2 Ir（2-TFDBC）[BPPBI=2-（biphenyl-4-yl）-1-phenyl-1H-benzo[d]imidazole,2-TFDBC=1-（9-ethyl-9H-carbazol-2-yl）-4,4,4-trifluorobutane-1,3-dione],was synthesized,and its structure and component were confirmed by 1 H NMR and element analysis,respectively.UV-Vis absorption and photoluminescent（PL） spectra of（BPPBI） 2 Ir（2-TFDBC） in dichloromethane were investigated.The Ir-complex exhibited a long wavelength excitation of 470 nm,i.e.,low-energy excitation.So,it is a promising candidate for phosphorescent probe and PL material.（BPPBI） 2 Ir（2-TFDBC）-based electroluminescent devices,ITO/MoO 3（10 nm）/NPB（80 nm）/CBP：x（BPPBI） 2 Ir（2-TFDBC）（20 nm）/TPBi（45 nm）/LiF/Al,were fabricated,where x（%） was of 4% or 8% doping concentration（mass fraction）;ITO=indium tin oxides;NBP=N,N＇-bis-（1-naphthalenyl）-N,N＇-bis-phenyl-（1,1＇-biphenyl）4,4＇-diamine,CBP=4,4＇-bis（N-carbazolyl）-1,1＇-biphenyl,TPBi=1,3,5-tris（1-phenyl-1H-benzimidazol-2-yl）benzene.The devices showed a red emission of 620 nm.The maximum current efficiency and brightness were 1.7 cd/A and 4063 cd/m 2 for a device of 8%（mass fraction） doping level,respectively.The moderate luminous efficiency was due to the inadequate energy transfer from the host material to the guest material.展开更多
With the overall promotion of the new curriculum reform, teachers’ teaching ideas have greatly changed. Under this background, how to apply the concept of new curriculum reform guide the reform of college English tea...With the overall promotion of the new curriculum reform, teachers’ teaching ideas have greatly changed. Under this background, how to apply the concept of new curriculum reform guide the reform of college English teaching is an important task. Therefore, it is very important to study the teaching strategies of college English teaching. Culture and language are complementary and inseparable, which requires us to carry out cultural teaching during English teaching process. In this paper, we focus on the strategy of integrating enterprise cultures into college English teaching, and discuss several cultural teaching problems in college English class. As a language required course, English not only strengthen the learners’ language skills, but also enhance humanistic quality of students. However, current college English teaching takes the examination as the goal, which cannot meet the needs of the learner’s professional stuff. We propose the strategy of integrating the professional background into English teaching, in order to improve the students’ ability of comprehensive application of English and the professional quality.展开更多
From first principle calculations, we demonstrate that LiXS_2（X = Ga, In） compounds have potential applications as cathode materials for Li ion batteries. It is shown that Li can be extracted from the LiXS_2 lattice...From first principle calculations, we demonstrate that LiXS_2（X = Ga, In） compounds have potential applications as cathode materials for Li ion batteries. It is shown that Li can be extracted from the LiXS_2 lattice with relatively small volume change and the XS_4 tetrahedron structure framework remains stable upon delithiation. The theoretical capacity and average intercalation potential of the LiGaS_2（LiInS_2） cathode are 190.4（144._2） m Ah/g and 3.50 V（3.53 V）. The electronic structures of the LiXS_2 are insulating with band gaps of _2.88 eV and 1.99 eV for X = Ga and In, respectively.However, Li vacancies, which are formed through delithiation, change the electronic structure substantially from insulating to metallic structure, indicating that the electrical conductivities of the LiXS_2 compounds should be good during cycling.Li ion migration energy barriers are also calculated, and the results show that Li ion diffusions in the LiXS_2 compounds can be as good as those in the currently widely used electrode materials.展开更多
Enhancing optical and electrical performances is effective in improving power conversion efficiency of photovoltaic devices. Here, gold and silver dual nanoparticles were imported and embedded in the hole transport la...Enhancing optical and electrical performances is effective in improving power conversion efficiency of photovoltaic devices. Here, gold and silver dual nanoparticles were imported and embedded in the hole transport layer of perovskite solar cells. Due to the cooperative localized surface plasmon resonance of these two kinds of metal nanostructures, light harvest of perovskite material layer and the electrical performance of device were improved, which finally upgraded short circuit current density by 10.0%, and helped to increase power conversion efficiency from 10.4% to 11.6% under AM 1.5G illumination with intensity of 100 m W/cm;. In addition, we explored the influence of silver and gold nanoparticles on charge carrier generation, dissociation, recombination, and transportation inside perovskite solar cells.展开更多
In recent years,flexible photodetectors(FPDs)have received increasing attention due to their applications in electronic eyes,flexible sensing,terminal devices,and wearable devices.In addition,metallic halide perovskit...In recent years,flexible photodetectors(FPDs)have received increasing attention due to their applications in electronic eyes,flexible sensing,terminal devices,and wearable devices.In addition,metallic halide perovskite materials are considered as future materials for FPDs due to their compatibility with flexible substrates,low cost,simple synthesis methods,and superior optoelectronic properties.This review provides a comprehensive overview of the relevant cutting-edge research in the field of flexible perovskite photodetectors(FPPDs)from 2020 to 2022.First,the evaluation criteria for FPPDs are discussed and the development of perovskite stability criteria is emphatically described.Afterwards,the synthesis methods and device construction processes of metal halide perovskite materials commonly used by researchers in the past three years are described.These include single crystals and low-dimensional materials.Moreover,we have elaborated on the research of self-powered FPPD and its contributions in wearability,terminals,and portability.Finally,a summary of developments and possibilities in the field of FPPDs from 2020 to 2022 is provided.展开更多
Effective heat dissipation is a crucial issue in electrochemical energy storage devices. Thus, it is highly desirable to develop high-performance electrode materials with high thermal conductivity. Here, we report a f...Effective heat dissipation is a crucial issue in electrochemical energy storage devices. Thus, it is highly desirable to develop high-performance electrode materials with high thermal conductivity. Here, we report a facile one-step electrodeposition method to synthesize ternary cobalt nickel sulfide（CoNi2S4）flower-like nanosheets which are grown on graphite foil（GF） as binder-free electrode materials for supercapacitors. The as-fabricated GF/CoNi2S4 integrated electrode manifested an excellent thermal conductivity of 620.1 W·m-1·K-1 and a high specific capacitance of 881 F·g-2 at 5 mA cm-2, as well as good rate capability and cycling stability. Ultimately, the all-solid-state symmetric supercapacitor based on these advanced electrodes demonstrated superior heat dissipation performance during the galvanostatic charge-discharge processes. This novel strategy provides a new example of effective thermal management for potential applications in energy storage devices.展开更多
Gd_(2) O_(3) nanoparticles modified g-C_(3) N_(4) photocatalytic composites were synthesized by a simple one-step hydrothermal method.The structure,morphology,optical properties of the prepared photocatalyst were char...Gd_(2) O_(3) nanoparticles modified g-C_(3) N_(4) photocatalytic composites were synthesized by a simple one-step hydrothermal method.The structure,morphology,optical properties of the prepared photocatalyst were characterized by X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),field emission transmission electron microscopy(FETEM) and X-ray photoelectron spectroscopy(XPS).The result demonstrates that gadolinium is mainly dispersed on the surface of g-C_(3) N_(4) in the form of Gd_(2) O_(3),and does not destroy the lattice structure of g-C_(3) N_(4).Besides,the gadolinium can cause the red shift of the absorption edge of light,narrow the band gap,and increase the separation efficiency of the photogenerated electron and hole of g-C_(3) N_(4).Especially,the specific surface area of g-C_(3) N_(4) can be significantly increased.Furthermore,g-C_(3) N_(4)/Gd-0.05 displays the highest photodegradation performance when it is used for degradation of methyl orange(MO),methylene blue(MB) and Rhodamine B(RhB).The photodegradation rate of g-C_(3) N_(4)/Gd-0.05 composites is 72.4% for MO,95.5% for RhB,100% for MB after120 min under visible light(λ> 420 nm) irradiation.Narrow band gap promotes the separation of photogenerated electron and hole,which enhances the photocatalytic activity of g-C_(3) N_(4).It is noted that g-C_(3) N_(4)/Gd-0.05 exhibits excellent photocatalytic stability by the photocurrent and the cyclic photodegradation of MO.展开更多
In this letter, a novel zinc complex of Zn（ECTFBD）2 was synthesized by an environment-friendly grinding technique in high yield. Its structure was confirmed by 1H NMR, MS and EA. HECTFBD is 1-（9-ethyl-9H- carbazol-...In this letter, a novel zinc complex of Zn（ECTFBD）2 was synthesized by an environment-friendly grinding technique in high yield. Its structure was confirmed by 1H NMR, MS and EA. HECTFBD is 1-（9-ethyl-9H- carbazol-3-yl）-4,4,4-trifluorobutane-l,3-dione. Zn（ECTFBD）2-based light-emitting devices were fabricated. The architecture of the devices was ITO/PEDOT （40 nm）/100 wt% PVK： 40 wt% OXD-7： x wt% Zn（ECTFBD）2 （85 nm）/CsF （1.5 nm）/Al （100 rim）, where x = 1, 5, and 10 （relative to the mass of PVK and OXD-7）. The three devices displayed blue emissions with peaks at 450, 458, and 460 nm, respectively. A maximum luminous efficiency of 0.86 cd/A and a luminance of 228 cd/m2 were achieved by the 1 wt% doped device. So, we demonstrated further that Zn2＋-β-diketone complexes can be effectively severed as a class of new electroluminescent materials. In addition, the thermal stability of Zn（ECTFBD）2 was tested and the UV-vis and photoluminescent behaviors of Zn（ECTFBD）2 in CH2CI2 were investigated.展开更多
基金supported by the NNSFC(51363009,21764007)Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ160745 and GJJ151217)
文摘A novel praseodymium complex [PrCl(H_2O)_3(L)(HL)]_nnCl(1, HL = 3-hydroxy-2-methylquinoline-4-carboxylic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in P2_1 space group of the monoclinic system, with a = 7.3146(2), b = 9.3963(3), c = 17.4872(5) ?, β = 96.818(3)°, V = 1193.40(6) ?~3, C_(22)H_(23)Cl_2N_2O_9Pr, M_r = 671.23, Z = 2, D_c = 1.868 g/cm^3, μ(MoKα) = 2.322 mm^(-1) and F(000) = 668. The praseodymium ion is surrounded by seven oxygen atoms and one chlorine atom to yield a slightly distorted square antiprism. Complex 1 is characterized by a one-dimensional chain-like structure. A two-dimensional supramolecular layer is formed via hydrogen-bonding interactions. Solid-state photoluminescence spectrum reveals that it shows red emission. The emission bands are ascribed to the characteristic emission of the 4 f electron transitions of ~3P_0 → ~3H_J(J = 5 and 6) and ~3P_0 → ~3F_4 of Pr^(3+) ions. Solid-state UV/Vis diffuse reflectance spectroscopy exhibits that it has an optical band gap of 2.75 eV.
基金supported by the National Natural Science Foundation of China (Grant No. 11565020)the Counterpart Foundation of Sanya (Grant No. 2016PT43)+2 种基金the Special Foundation of Science and Technology Cooperation for Advanced Academy and Regional of Sanya (Grant No. 2016YD28)the Natural Science Foundation of Hainan province (Grant No. 114012)the Natural Science Foundation of Jiangxi Province (Grant No. 20132BAB212005)
文摘By introducing the Dirac δ-function and Pauli exclusion principle in the presence of superstrong magnetic fields （SMFs）, we investigate the influence of SMFs on beta decay and the change rates of electron fraction （CREF） of nuclides 56Fe, 62Ni, 64Ni and 6SNi in magnetars, which are powered by magnetic field energy. We find that the magnetic fields have a great influence on the beta decay rates, and the beta decay rates can decrease by more than six orders of magnitude in the presence of SMFs. The CREF also decreases by more than seven orders of magnitude in the presence of SMFs.
基金Supported by the Natural Science Foundation of Guangdong Province,China(No.10152404801000017)
文摘A novel iridium-complex,（BPPBI） 2 Ir（2-TFDBC）[BPPBI=2-（biphenyl-4-yl）-1-phenyl-1H-benzo[d]imidazole,2-TFDBC=1-（9-ethyl-9H-carbazol-2-yl）-4,4,4-trifluorobutane-1,3-dione],was synthesized,and its structure and component were confirmed by 1 H NMR and element analysis,respectively.UV-Vis absorption and photoluminescent（PL） spectra of（BPPBI） 2 Ir（2-TFDBC） in dichloromethane were investigated.The Ir-complex exhibited a long wavelength excitation of 470 nm,i.e.,low-energy excitation.So,it is a promising candidate for phosphorescent probe and PL material.（BPPBI） 2 Ir（2-TFDBC）-based electroluminescent devices,ITO/MoO 3（10 nm）/NPB（80 nm）/CBP：x（BPPBI） 2 Ir（2-TFDBC）（20 nm）/TPBi（45 nm）/LiF/Al,were fabricated,where x（%） was of 4% or 8% doping concentration（mass fraction）;ITO=indium tin oxides;NBP=N,N＇-bis-（1-naphthalenyl）-N,N＇-bis-phenyl-（1,1＇-biphenyl）4,4＇-diamine,CBP=4,4＇-bis（N-carbazolyl）-1,1＇-biphenyl,TPBi=1,3,5-tris（1-phenyl-1H-benzimidazol-2-yl）benzene.The devices showed a red emission of 620 nm.The maximum current efficiency and brightness were 1.7 cd/A and 4063 cd/m 2 for a device of 8%（mass fraction） doping level,respectively.The moderate luminous efficiency was due to the inadequate energy transfer from the host material to the guest material.
文摘With the overall promotion of the new curriculum reform, teachers’ teaching ideas have greatly changed. Under this background, how to apply the concept of new curriculum reform guide the reform of college English teaching is an important task. Therefore, it is very important to study the teaching strategies of college English teaching. Culture and language are complementary and inseparable, which requires us to carry out cultural teaching during English teaching process. In this paper, we focus on the strategy of integrating enterprise cultures into college English teaching, and discuss several cultural teaching problems in college English class. As a language required course, English not only strengthen the learners’ language skills, but also enhance humanistic quality of students. However, current college English teaching takes the examination as the goal, which cannot meet the needs of the learner’s professional stuff. We propose the strategy of integrating the professional background into English teaching, in order to improve the students’ ability of comprehensive application of English and the professional quality.
基金Project supported by the National High Technology and Development Key Program,China(Grant No.2015AA034201)the National Natural Science Foundation of China(Grant Nos.11234013 and 11264014)+1 种基金the Natural Science Foundation of Jiangxi Province,China(Grant Nos.20133ACB21010,20142BAB212002,and 20132BAB212005)the Foundation of Jiangxi Provincial Education Committee,China(Grant Nos.GJJ14254 and KJLD14024)
文摘From first principle calculations, we demonstrate that LiXS_2（X = Ga, In） compounds have potential applications as cathode materials for Li ion batteries. It is shown that Li can be extracted from the LiXS_2 lattice with relatively small volume change and the XS_4 tetrahedron structure framework remains stable upon delithiation. The theoretical capacity and average intercalation potential of the LiGaS_2（LiInS_2） cathode are 190.4（144._2） m Ah/g and 3.50 V（3.53 V）. The electronic structures of the LiXS_2 are insulating with band gaps of _2.88 eV and 1.99 eV for X = Ga and In, respectively.However, Li vacancies, which are formed through delithiation, change the electronic structure substantially from insulating to metallic structure, indicating that the electrical conductivities of the LiXS_2 compounds should be good during cycling.Li ion migration energy barriers are also calculated, and the results show that Li ion diffusions in the LiXS_2 compounds can be as good as those in the currently widely used electrode materials.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61306080,51203192,11334014,and 51664047)the Natural Science Foundation of Hunan Province,China(Grant No.2015JJ3143)the Scientific and Technological Project of Hunan Provincial Development and Reform Commission,China
文摘Enhancing optical and electrical performances is effective in improving power conversion efficiency of photovoltaic devices. Here, gold and silver dual nanoparticles were imported and embedded in the hole transport layer of perovskite solar cells. Due to the cooperative localized surface plasmon resonance of these two kinds of metal nanostructures, light harvest of perovskite material layer and the electrical performance of device were improved, which finally upgraded short circuit current density by 10.0%, and helped to increase power conversion efficiency from 10.4% to 11.6% under AM 1.5G illumination with intensity of 100 m W/cm;. In addition, we explored the influence of silver and gold nanoparticles on charge carrier generation, dissociation, recombination, and transportation inside perovskite solar cells.
基金financially supported by the National Natural Science Foundation of China(21975111,21774053,and 51903123)Advanced Analysis and Testing Center of Nanjing Forestry University。
基金supported by the Science and Technology Research Project of Education Department of Jiangxi Province(GJJ202314,GJ212313,GJJ181018,GJJ202306)Innovation team Funding Project of Xinyu University(CT201901)+1 种基金Key Scientific Research Project of Xinyu University(XJZD1901)Science and Technology Department of Jiangxi Province(20202BAB204001,20171BAB201012).
文摘In recent years,flexible photodetectors(FPDs)have received increasing attention due to their applications in electronic eyes,flexible sensing,terminal devices,and wearable devices.In addition,metallic halide perovskite materials are considered as future materials for FPDs due to their compatibility with flexible substrates,low cost,simple synthesis methods,and superior optoelectronic properties.This review provides a comprehensive overview of the relevant cutting-edge research in the field of flexible perovskite photodetectors(FPPDs)from 2020 to 2022.First,the evaluation criteria for FPPDs are discussed and the development of perovskite stability criteria is emphatically described.Afterwards,the synthesis methods and device construction processes of metal halide perovskite materials commonly used by researchers in the past three years are described.These include single crystals and low-dimensional materials.Moreover,we have elaborated on the research of self-powered FPPD and its contributions in wearability,terminals,and portability.Finally,a summary of developments and possibilities in the field of FPPDs from 2020 to 2022 is provided.
基金financially supported by the National Natural Science Foundation of China (21203236)Shenzhen Peacock Plan (KQCX2015033117354154)+1 种基金Shenzhen basic research plan (JCYJ2015052114432090)the Science & Technology Project of Educational Commission of Jiangxi Province, China (GJJ161198)
文摘Effective heat dissipation is a crucial issue in electrochemical energy storage devices. Thus, it is highly desirable to develop high-performance electrode materials with high thermal conductivity. Here, we report a facile one-step electrodeposition method to synthesize ternary cobalt nickel sulfide（CoNi2S4）flower-like nanosheets which are grown on graphite foil（GF） as binder-free electrode materials for supercapacitors. The as-fabricated GF/CoNi2S4 integrated electrode manifested an excellent thermal conductivity of 620.1 W·m-1·K-1 and a high specific capacitance of 881 F·g-2 at 5 mA cm-2, as well as good rate capability and cycling stability. Ultimately, the all-solid-state symmetric supercapacitor based on these advanced electrodes demonstrated superior heat dissipation performance during the galvanostatic charge-discharge processes. This novel strategy provides a new example of effective thermal management for potential applications in energy storage devices.
基金Project supported by the National Natural Science Foundation of China (51664047,21667019,22066017)the First Training-class High-end Talents Projects of Science and Technology Innovation in Jiangxi Province (CK202002473)+4 种基金the Key of Natural Science Foundation of Jiangxi Province (20171ACB20016)the Jiangxi Province Major Academic and Technical Leaders Cultivating Object Program (20172BCB22014)the Science and Technology Department of Jiangxi Province(20181BCB18003,20181ACG70025)the Key of Science and Technology Research of the Jiangxi Provincial Department of Education (GJJ191044,GJJ191058)Fujian Key Laboratory of Measurement and Control System for Of-Shore Environment (S1-KF1703)。
文摘Gd_(2) O_(3) nanoparticles modified g-C_(3) N_(4) photocatalytic composites were synthesized by a simple one-step hydrothermal method.The structure,morphology,optical properties of the prepared photocatalyst were characterized by X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),field emission transmission electron microscopy(FETEM) and X-ray photoelectron spectroscopy(XPS).The result demonstrates that gadolinium is mainly dispersed on the surface of g-C_(3) N_(4) in the form of Gd_(2) O_(3),and does not destroy the lattice structure of g-C_(3) N_(4).Besides,the gadolinium can cause the red shift of the absorption edge of light,narrow the band gap,and increase the separation efficiency of the photogenerated electron and hole of g-C_(3) N_(4).Especially,the specific surface area of g-C_(3) N_(4) can be significantly increased.Furthermore,g-C_(3) N_(4)/Gd-0.05 displays the highest photodegradation performance when it is used for degradation of methyl orange(MO),methylene blue(MB) and Rhodamine B(RhB).The photodegradation rate of g-C_(3) N_(4)/Gd-0.05 composites is 72.4% for MO,95.5% for RhB,100% for MB after120 min under visible light(λ> 420 nm) irradiation.Narrow band gap promotes the separation of photogenerated electron and hole,which enhances the photocatalytic activity of g-C_(3) N_(4).It is noted that g-C_(3) N_(4)/Gd-0.05 exhibits excellent photocatalytic stability by the photocurrent and the cyclic photodegradation of MO.
基金supported by the Research Foundation of Education Department of Jiangxi,China(No.GJJ12653)the Science&Technology Program of Universities of Jiangxi,China(No.KJLD12100)
文摘In this letter, a novel zinc complex of Zn（ECTFBD）2 was synthesized by an environment-friendly grinding technique in high yield. Its structure was confirmed by 1H NMR, MS and EA. HECTFBD is 1-（9-ethyl-9H- carbazol-3-yl）-4,4,4-trifluorobutane-l,3-dione. Zn（ECTFBD）2-based light-emitting devices were fabricated. The architecture of the devices was ITO/PEDOT （40 nm）/100 wt% PVK： 40 wt% OXD-7： x wt% Zn（ECTFBD）2 （85 nm）/CsF （1.5 nm）/Al （100 rim）, where x = 1, 5, and 10 （relative to the mass of PVK and OXD-7）. The three devices displayed blue emissions with peaks at 450, 458, and 460 nm, respectively. A maximum luminous efficiency of 0.86 cd/A and a luminance of 228 cd/m2 were achieved by the 1 wt% doped device. So, we demonstrated further that Zn2＋-β-diketone complexes can be effectively severed as a class of new electroluminescent materials. In addition, the thermal stability of Zn（ECTFBD）2 was tested and the UV-vis and photoluminescent behaviors of Zn（ECTFBD）2 in CH2CI2 were investigated.
