摘要
准确测量太阳能电池材料少数载流子寿命在电池研究生产中至关重要。利用开路电压衰减(OCVD)技术以ns光脉冲(光脉冲宽度8 ns、频率为10 Hz)作为激发光源,获到了全无机胶体量子点太阳能电池在不同温度(97 K~317 K)条件下的开路电压瞬态响应曲线。电池在低温(97 K~277 K)及高温(277 K~317 K)区域的精确少数载流子寿命被分离出来,分别为0.369μs和6.25×10-3μs。
The accurate measurement of the minority carrier lifetime is of vital significance in research and manufacture of solar cells.Using open circuit voltage decay(OCVD)technique with a nanosecond light pulse(pulse width of 8ns,frequency of 10Hz)as excitation light source we obtained the open-circuit voltage transient response curve of all-inorganic colloidal quantum dot solar cells at different temperatures.Exact minority carrier lifetimes in cells at low(77 K~277 K)and high(277 K~317 K) absolute temperature regions have been obtained as 0.369 μs and 6.25×10^-3 μs.
出处
《电子器件》
CAS
北大核心
2012年第3期249-252,共4页
Chinese Journal of Electron Devices
基金
国家自然科学基金项目(10774023)
关键词
太阳电池
少数载流子寿命
开路电压衰减技术
温度
solar cell
minority carrier lifetime
open circuit voltage decay technique
temperature