Progress and challenges with CdTe cell efficiency
Progress and challenges with CdTe cell efficiency
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CdTe 电池效率的进展和挑战
DOI：
10.1109/pvsc.2016.7750351
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
W. Sampath
中科院分区：
文献类型：
--
作者：
J. Sites;A. Munshi;J. Kephart;D. Swanson;W. Sampath
科罗拉多州的CDTE太阳能电池效率现在已在商业玻璃上独立验证了18％，最高效率电池的参数为863 mV，JSC为26.8 mA/cm2，填充因子为79.2％对于18.3％的效率。层和抗反射涂层。描述了电压防御，其中一种用完全消耗的CDTE的电子反射已用1-μmCDTE实现了60 mV的电压增加，并使用亚微米吸收器升高。
CdTe solar-cell efficiency at Colorado State has now been independently verified above 18% on commercial glass. The parameters for the highest-efficiency cell are 863 mV for VOC, 26.8 mA/cm2 for JSC, and 79.2% for fill-factor, combining for 18.3% efficiency. The cell features that allowed the increases include higher-temperature pre-heating before CdTe deposition, a Te layer to facilitate the back contact, MgZnO for the buffer layer, and an anti-reflective coating. The current and fill-factor have achieved large fractions of their ideal values for the CdTe band gap, but as is typical for CdTe cells, the voltage has not. Two general strategies to address the voltage deficit are described. One of these, electron reflection with fully-depleted CdTe, has achieved voltage increases of 60 mV with 1-μm CdTe and higher with sub-micron absorbers.