中国物理B ›› 2013, Vol. 22 ›› Issue (10): 107301-107301.doi: 10.1088/1674-1056/22/10/107301
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
闫国英, 白子龙, 李慧玲, 傅广生, 刘富强, 于威, 王江龙, 王淑芳
Yan Guo-Ying (闫国英), Bai Zi-Long (白子龙), Li Hui-Ling (李慧玲), Fu Guang-Sheng (傅广生), Liu Fu-Qiang (刘富强), Yu Wei (于威), Wang Jiang-Long (王江龙), Wang Shu-Fang (王淑芳)
摘要: A Bi2Sr2Co2Oy/Si heterojunction is obtained by growing a layer of p-type oxygen-deficient Bi2Sr2Co2Oy film on a commercial n-type silicon wafer by pulsed laser deposition. Its rectifying and photovoltaic properties are studied in a wide temperature range from 20 K to 300 K. The transport mechanism under the forward bias can be attributed to a trap-filled space-charge-limited current conduction mechanism. Under the irradiation of a 532-nm continuous wave laser, a clear photovoltaic effect is observed and the magnitude of photovoltage increases as the temperature decreases. The results demonstrate the potential application of a Bi2Sr2Co2Oy-based heterojunction in the photoelectronic devices.
中图分类号: (Other semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions)