CAJ | 학술논문

基于载流子辐射（PCR）检测太阳能电池的理论模型，对调制激光致载流子辐射检测中电路状态对频域信号的影响进行了数值仿真分析，得到不同外部电阻下的频域响应幅值曲线；使用所建立的检测实验系统对Si基太阳能电池片进行了检测，对不同电路状态下的幅值图与相位图进行了对比分析，对比不同电路状态下的辐射强度幅值，依据实验所得到的频域响应曲线，拟合计算了载流子的寿命参数。结果表明：PCR技术检测太阳能电池，电路状态为开路时辐射幅值最大，随着外部负载电阻的减小，辐射幅值逐渐较小，相位的变化并不明显，短路时的辐射幅值最小；各电路状态下的拟合寿命相近，载流子辐射检测太阳能电池技术中可以用开路状态的频域检测结果预测其他电路状态的频域响应结果和载流子参数拟合计算方法。
기우재류자복사（PCR）검측태양능전지적이론모형，대조제격광치재류자복사검측중전로상태대빈역신호적영향진행료수치방진분석，득도불동외부전조하적빈역향응폭치곡선；사용소건립적검측실험계통대Si기태양능전지편진행료검측，대불동전로상태하적폭치도여상위도진행료대비분석，대비불동전로상태하적복사강도폭치，의거실험소득도적빈역향응곡선，의합계산료재류자적수명삼수。결과표명：PCR기술검측태양능전지，전로상태위개로시복사폭치최대，수착외부부재전조적감소，복사폭치축점교소，상위적변화병불명현，단로시적복사폭치최소；각전로상태하적의합수명상근，재류자복사검측태양능전지기술중가이용개로상태적빈역검측결과예측기타전로상태적빈역향응결과화재류자삼수의합계산방법。
Based on the theoretical model of photocarrier radiometry (PCR) testing solar cells, numerical simulation analysis was proceeded to study the influence of different circuit states in frequency domain response signal, and amplitude response curves were achieved with different external load resistors. Experiments were carried out with built set-up for photocarrier radiometry diagnostic approach for Si solar cells. The feature of amplitude diagram and phase diagram were stated. The effect of different circuit states on test results was discussed. At last the fitting life time was compared in different circuit states to study whether circuit states affect the carrier parameter measurement. The results shows that open circuit state gives the highest amplitude in amplitude diagram, and the smaller the load resistance is, the lower amplitude becomes. However, phase didn’t change clearly. The fitting life time is nearly consistent, not changed with circuit states, which shows the results of PCR testing solar cells in open circuit states can forecast frequency domain response results and carrier parameters fitting calculation in other circuit states.