In order to investigate the structural stability of fullerene (C60) under swift heavy ion irradiation, the irradiation experiments of thin C60 films were performed with 22 AMeV 56Fe ions delivered by HIRFL. The flux w...In order to investigate the structural stability of fullerene (C60) under swift heavy ion irradiation, the irradiation experiments of thin C60 films were performed with 22 AMeV 56Fe ions delivered by HIRFL. The flux was not more than 1×108 ions/cm2·s to limit thermal effects during irradiation. The irradiation fluences were 5×1010- 8×1013 ions/cm2.展开更多
M2SisN8：Eu2＋-based （M=Ca, Sr, Ba） red-emitting phosphors are fabricated at relatively low temperature （1200℃） and atmos- pheric pressure using a simple solid-state reaction process. Several processing parameter...M2SisN8：Eu2＋-based （M=Ca, Sr, Ba） red-emitting phosphors are fabricated at relatively low temperature （1200℃） and atmos- pheric pressure using a simple solid-state reaction process. Several processing parameters are systematically investigated to optimize the phosphors structural characterization and photoluminescence performance, including the amount of europium and the properties of the precursor materials. The as-prepared M2SisNs：Eu2＋-based （M=Ca, Sr, Ba） phosphors are orange in color and are intensively emitted in the red region of 580-670 nm under 465 nm excitation.展开更多
基金The project is supported by National Natural Science Foundation of China(10175084, 10125522.
文摘In order to investigate the structural stability of fullerene (C60) under swift heavy ion irradiation, the irradiation experiments of thin C60 films were performed with 22 AMeV 56Fe ions delivered by HIRFL. The flux was not more than 1×108 ions/cm2·s to limit thermal effects during irradiation. The irradiation fluences were 5×1010- 8×1013 ions/cm2.
基金supported by New Century Excellent Talents of the University in China for the financial support(Grant No.NCET-04-0975)
文摘M2SisN8：Eu2＋-based （M=Ca, Sr, Ba） red-emitting phosphors are fabricated at relatively low temperature （1200℃） and atmos- pheric pressure using a simple solid-state reaction process. Several processing parameters are systematically investigated to optimize the phosphors structural characterization and photoluminescence performance, including the amount of europium and the properties of the precursor materials. The as-prepared M2SisNs：Eu2＋-based （M=Ca, Sr, Ba） phosphors are orange in color and are intensively emitted in the red region of 580-670 nm under 465 nm excitation.
