連續(xù)激光供能單結(jié)GaAs光電池輸出特性仿真
發(fā)布時間：2018-10-30 17:45
【摘要】：為了研究808 nm連續(xù)激光供能對單結(jié)GaAs光電池輸出性能的影響,利用COMSOL和MATLAB軟件構(gòu)建了相應(yīng)物理模型,通過數(shù)值仿真研究了激光功率密度、等效串并聯(lián)電阻和減反膜對熱穩(wěn)態(tài)時光電池伏安特性、開路電壓、短路電流、光電轉(zhuǎn)換效率、填充因子和穩(wěn)態(tài)工作溫度的影響。結(jié)果表明:隨著激光功率密度增大,開路電壓和短路電流不斷增大,且轉(zhuǎn)換效率和填充因子都具有最大值;減小等效串聯(lián)電阻和增大等效并聯(lián)電阻是提高光電池輸出性能的有效方法;減反膜結(jié)構(gòu)對提高光電池轉(zhuǎn)換效率非常重要,但也使光電池?zé)岱�(wěn)態(tài)工作溫度較高。當(dāng)入射功率密度為62.4 mW/cm~2時,光電池?zé)岱�(wěn)態(tài)輸出效率達(dá)到最高為50.13%。該數(shù)值模擬結(jié)果與相關(guān)實驗結(jié)果基本相符,對連續(xù)激光供能光電池輸出特性研究提供一定的理論依據(jù)。
[Abstract]:In order to study the effect of 808 nm continuous laser power supply on the output performance of single-junction GaAs photovoltaic cells, the corresponding physical models were constructed by using COMSOL and MATLAB software, and the laser power density was studied by numerical simulation. The effects of equivalent series-parallel resistance and antireflection film on the volt-ampere characteristics, open-circuit voltage, short-circuit current, optoelectronic conversion efficiency, filling factor and steady-state operating temperature of the thermostable time cell are investigated. The results show that the open circuit voltage and short circuit current increase with the increase of laser power density, and the conversion efficiency and filling factor have the maximum value. Reducing the equivalent series resistance and increasing the equivalent parallel resistance are the effective methods to improve the output performance of the photovoltaic cell, and the reverse film structure is very important to improve the conversion efficiency of the photocell, but it also makes the photocell thermostable operation temperature higher. When the incident power density is 62.4 mW/cm~ _ 2, the thermal output efficiency of the photocell reaches the maximum of 50.13. The numerical simulation results are in good agreement with the experimental results, which provides a theoretical basis for the study of the output characteristics of CW laser photovoltaic cells.
【作者單位】： 南京理工大學(xué)理學(xué)院;上海空間電源研究所;
【基金】：上海航天科技創(chuàng)新基金(SAST20161113)
【分類號】：TM914
本文編號：2300719
[Abstract]:In order to study the effect of 808 nm continuous laser power supply on the output performance of single-junction GaAs photovoltaic cells, the corresponding physical models were constructed by using COMSOL and MATLAB software, and the laser power density was studied by numerical simulation. The effects of equivalent series-parallel resistance and antireflection film on the volt-ampere characteristics, open-circuit voltage, short-circuit current, optoelectronic conversion efficiency, filling factor and steady-state operating temperature of the thermostable time cell are investigated. The results show that the open circuit voltage and short circuit current increase with the increase of laser power density, and the conversion efficiency and filling factor have the maximum value. Reducing the equivalent series resistance and increasing the equivalent parallel resistance are the effective methods to improve the output performance of the photovoltaic cell, and the reverse film structure is very important to improve the conversion efficiency of the photocell, but it also makes the photocell thermostable operation temperature higher. When the incident power density is 62.4 mW/cm~ _ 2, the thermal output efficiency of the photocell reaches the maximum of 50.13. The numerical simulation results are in good agreement with the experimental results, which provides a theoretical basis for the study of the output characteristics of CW laser photovoltaic cells.
【作者單位】： 南京理工大學(xué)理學(xué)院;上海空間電源研究所;
【基金】：上海航天科技創(chuàng)新基金(SAST20161113)
【分類號】：TM914
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