O484 96031825硼掺杂及未掺杂金刚石薄膜的电学和光电导特性=Electrical and photoconductive characteristicsof B-doped and undoped diamond films[刊,中]/张仿清,张文军,胡博,谢二庆,陈光华（兰州大学物理系）//半导体学报.-1995,16...O484 96031825硼掺杂及未掺杂金刚石薄膜的电学和光电导特性=Electrical and photoconductive characteristicsof B-doped and undoped diamond films[刊,中]/张仿清,张文军,胡博,谢二庆,陈光华（兰州大学物理系）//半导体学报.-1995,16（10）.-783-788用热丝辅助CVD法,用B<sub>2</sub>O<sub>3</sub>作硼源,成功地合成了金刚石膜。研究了退火前后它的电学性质和光电导特性。根据实验结果,分析了样品中可能存在的缺陷态及其对膜光电特性的影响。图5参10（方舟）展开更多
Two inner salt carbocyanines were filmed chemically on the Si surface through Si-O-C bond. The structures were characterized by SERS and XPS. And the spectral response and surface photovoltage spectrum were measured. ...Two inner salt carbocyanines were filmed chemically on the Si surface through Si-O-C bond. The structures were characterized by SERS and XPS. And the spectral response and surface photovoltage spectrum were measured. These results show that the Si wafer can be sensitized by dyes, and the filmed Si wafers have photovoltage effect.展开更多
The photoresponse and photoconductivity properties of micron-sized C60whiskers and sub-millimeter-sized C60clusters are successfully studied by the microfabrication technologies.According to the ultraviolet-visible-ne...The photoresponse and photoconductivity properties of micron-sized C60whiskers and sub-millimeter-sized C60clusters are successfully studied by the microfabrication technologies.According to the ultraviolet-visible-near infrared(UVVis-NIR)absorption spectroscopic study,a highly intense absorption is observed in the UV and visible light regions,which indicates probable applications in photoelectric devices.Furthermore,a large photocurrent is measured under the illumination of white light in nitrogen(N2)atmosphere.The micron-sized C60whiskers and the sub-millimeter-sized C60clusters have different photoresponse curves under the same condition of measurement.A quick transformation of photoelectric response is detected in parallel multi-arranged micron-sized C60whiskers,but the recovery of the photocurrent of self-assembly sub-millimeter-sized C60clusters is much slower.展开更多
Linearly bonded triiodide chains with fairly small distance between the adjacent iodine ions feature a facile electron transfer and highly anisotropic properties.Here,we demonstrate a novel strategy towards a new one-...Linearly bonded triiodide chains with fairly small distance between the adjacent iodine ions feature a facile electron transfer and highly anisotropic properties.Here,we demonstrate a novel strategy towards a new one-dimensional linear triiodide DMEDA·I6,using chain-type N,N'-dimethylethanediamine(DMEDA)cation to coordinate triiodine ions.This triiodide has the shortest distance between adjacent I3^- and good linearity.An estimated electronic band gap of1.36 e V indicates its semiconducting properties.100 fold differences both in polarization-sensitive absorption and effective mass were achieved by simulation,with directions parallel and perpendicular to the a-axis of DMEDA·I6.The DMEDA·I6 single crystal-based photodetectors show a good switching characteristic and a distinct polarization-sensitive photoresponse with linear dichroic photodetection ratio of about 1.9.Strongly anisotropic features and semiconducting properties of DMEDA·I6 make this triiodide system an interesting candidate for polarization related applications.展开更多
文摘O484 96031825硼掺杂及未掺杂金刚石薄膜的电学和光电导特性=Electrical and photoconductive characteristicsof B-doped and undoped diamond films[刊,中]/张仿清,张文军,胡博,谢二庆,陈光华（兰州大学物理系）//半导体学报.-1995,16（10）.-783-788用热丝辅助CVD法,用B<sub>2</sub>O<sub>3</sub>作硼源,成功地合成了金刚石膜。研究了退火前后它的电学性质和光电导特性。根据实验结果,分析了样品中可能存在的缺陷态及其对膜光电特性的影响。图5参10（方舟）
文摘Two inner salt carbocyanines were filmed chemically on the Si surface through Si-O-C bond. The structures were characterized by SERS and XPS. And the spectral response and surface photovoltage spectrum were measured. These results show that the Si wafer can be sensitized by dyes, and the filmed Si wafers have photovoltage effect.
基金the Major State Basic Research Development Program of China(No.2012CB825804)
文摘The photoresponse and photoconductivity properties of micron-sized C60whiskers and sub-millimeter-sized C60clusters are successfully studied by the microfabrication technologies.According to the ultraviolet-visible-near infrared(UVVis-NIR)absorption spectroscopic study,a highly intense absorption is observed in the UV and visible light regions,which indicates probable applications in photoelectric devices.Furthermore,a large photocurrent is measured under the illumination of white light in nitrogen(N2)atmosphere.The micron-sized C60whiskers and the sub-millimeter-sized C60clusters have different photoresponse curves under the same condition of measurement.A quick transformation of photoelectric response is detected in parallel multi-arranged micron-sized C60whiskers,but the recovery of the photocurrent of self-assembly sub-millimeter-sized C60clusters is much slower.
基金financially supported by the National Natural Science Foundation of China (51761145048, 61725401 and 61704097)the Innovation Fund of WNLO and the 62th China Postdoctoral Science Foundation (2017M622418)
文摘Linearly bonded triiodide chains with fairly small distance between the adjacent iodine ions feature a facile electron transfer and highly anisotropic properties.Here,we demonstrate a novel strategy towards a new one-dimensional linear triiodide DMEDA·I6,using chain-type N,N'-dimethylethanediamine(DMEDA)cation to coordinate triiodine ions.This triiodide has the shortest distance between adjacent I3^- and good linearity.An estimated electronic band gap of1.36 e V indicates its semiconducting properties.100 fold differences both in polarization-sensitive absorption and effective mass were achieved by simulation,with directions parallel and perpendicular to the a-axis of DMEDA·I6.The DMEDA·I6 single crystal-based photodetectors show a good switching characteristic and a distinct polarization-sensitive photoresponse with linear dichroic photodetection ratio of about 1.9.Strongly anisotropic features and semiconducting properties of DMEDA·I6 make this triiodide system an interesting candidate for polarization related applications.
