Thin-Film Solar Cells with 19% Efficiency by Thermal Evaporation of CdSe and CdTe
Thin-Film Solar Cells with 19% Efficiency by Thermal Evaporation of CdSe and CdTe
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DOI：
10.1021/acsenergylett.9b02836
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发表时间：
2020-03-13
影响因子：
22
通讯作者：
Metzger, Wyatt K.
中科院分区：
文献类型：
--
作者：
Ablekim, Tursun;Duenow, Joel N.;Metzger, Wyatt K.
碲化镉为基础的太阳能电池表现出19%的功率转换效率，使用广泛可用的热蒸发沉积的吸收层的SnO 2涂层的玻璃上有或没有一个透明的MgZnO缓冲层。通过热蒸发和随后的CdCl 2退火依次蒸发CdSe和CdTe建立有效的CdSeTe带分级以及致密的大晶粒膜。这些结果表明，高性能的II-VI族光致发光材料可以通过廉价的商用蒸发系统制造，而不需要建造定制的设备，使CdTe光致发光材料的研究和制造更容易为更广泛的光致发光社区所接受。
CdTe-based solar cells exhibiting 19% power conversion efficiency were produced using widely available thermal evaporation deposition of the absorber layers on SnO2-coated glass with or without a transparent MgZnO buffer layer. Evaporating CdSe and CdTe sequentially by thermal evaporation and subsequent CdCl2 annealing establishes efffective CdSeTe band grading as well as dense, large-grain films. These results show that high-performance II-VI photovoltaics can be made by inexpensive, commercially available evaporation systems without the need to build customized equipment, enabling CdTe photovoltaics research and manufacturing to be more accessible to the broader photovoltaics community.