| CdTe-HgCdTe叠层太阳电池CdS窗口层透射光谱性能研究 |
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| 引用本文： | 郭珉,朱秀荣,李贺军. CdTe-HgCdTe叠层太阳电池CdS窗口层透射光谱性能研究[J]. 红外与激光工程, 2016, 45(6): 621003-0621003(6). DOI: 10.3788/IRLA201645.0621003 |
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| 作者姓名： | 郭珉 朱秀荣 李贺军 |
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| 作者单位： | 1.西北工业大学 材料学院,陕西 西安 710072; |
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| 基金项目： | 宁波市科技创新团队项目(2011B81004);红外物理国家重点实验室开放课题(K201311) |
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| 摘 要： | CdS窗口层光谱透射率的提高对CdTe-HgCdTe叠层太阳电池有效利用入射太阳光并增大电池的短路电流密度有重要的影响。通过研究化学水浴法、近空间升华法和磁控溅射法制备的CdS薄膜在CdCl2退火前后的光谱平均透过率和短路电流密度损失表明:在光谱区520~820 nm,化学水浴法制备的CdS薄膜在退火前后具有最高的光谱平均透过率,对应的CdTe顶电池有最小的短路电流密度损失;在光谱区820~1150和520~1150 nm,磁控溅射法制备的CdS薄膜在退火前后均具有最高的光谱平均透过率,对应的HgCdTe底电池和CdTe-HgCdTe叠层太阳电池有最小的短路电流密度损失。在光谱区520~820、820~1150和520~1150 nm,CdCl2退火可以显著增大CdS薄膜的光谱平均透过率,降低对应CdTe顶电池、HgCdTe底电池和CdTe-HgCdTe叠层电池的短路电流密度损失。
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| 关 键 词： | CdS薄膜 CdTe-HgCdTe叠层太阳电池 可见和近红外光谱 光谱透过率 短路电流密度损失 |
| 收稿时间： | 2015-10-12 |
Optical transmittance properties for CdS films in CdTe-HgCdTe tandem solar cells |
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| Affiliation: | 1.School of Materials and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;2.Ningbo Branch of China Academy of Ordnance Science,Ningbo 315103,China |
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| Abstract: | Improving the spectral transmittance of CdS window layer used in CdTe-HgCdTe tandem solar cells has a significant impact on the effective utilization of sunlight and increases the device short-circuit current density (Jsc). Herein, the average transmittance (T) and Jsc losses of as-deposited and CdCl2 annealed CdS films prepared by chemical bath deposition (CBD), near space sublimation (CSS) and magnetron sputtering(SPUT) are studied. The results show that:in the range of 520-820 nm, the as-deposited and annealed CdS films by CBD exhibit the highest T and the lowest Jsc losses of the CdTe top cell; in the range of 820-1 150 and 520-1 150 nm, the as-deposited and annealed CdS films by SPUT exhibit the highest T and the lowest Jsc losses of the HgCdTe bottom cell and the CdTe-HgCdTe tandem solar cells. In the range of 520-820, 820-1 150 and 520-1 150 nm, the CdCl2 annealing can greatly increase T of CdS films and decrease the Jsc losses of the CdTe top cell, the HgCdTe bottom cell and the CdTe-HgCdTe tandem solar cells. |
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