A Density Functional Theory (DFT) Study on the Effect of Chlorine in the Magnesium Zinc Oxide (MZO) Front Interface for Cadmium Telluride (CdTe) Thin Film Solar Cells

被引：0
|
作者：
Thiyagarajan, Aanand [1 ]
Nicholson, Anthony [1 ]
Shah, Akash [1 ]
Sampath, Walajabad [1 ]
机构：
[1] Colorado State Univ, Dept Mech Engn, Ft Collins, CO 80523 USA
来源：
2020 47TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2020年
基金：
美国国家科学基金会;
关键词：
chlorine; atomistic; thin film; interface; oxide; photovoltaic; band alignment; DFT; NEGF; PASSIVATION; EFFICIENCY;
D O I：
10.1109/pvsc45281.2020.9300614
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Cadmium telluride photovoltaics has benefitted greatly from the cadmium chloride treatment which causes a remarkable improvement in cell efficiencies. This work investigates the effect of elemental chlorine at the interface between the magnesium zinc oxide front contact and the cadmium telluride absorber in such a device. Band alignment including band bending and interface states and its role in potential charge carrier transport is the key feature studied. It is seen that a small amount of chlorine is leads to a more desirable band alignment. Higher concentrations of chlorine result in unfavorable band characteristics.
引用
收藏
页码：2188 / 2191
页数：4
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