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Efficiency enhancement of Sb<sub>2</sub>Se<sub>3</sub> thin-film solar cells by the co-evaporation of Se and Sb<sub>2</sub>Se<sub>3</sub>

Zhiqiang LiInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaHongbing ZhuInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaYuting GuoInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaXiaona NiuInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaChen XuInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaChong ZhangInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaWen ZhangInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaXiaoyang LiangInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaDong ZhouInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaJingwei ChenInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, ChinaYaohua MaiInstitute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding 071002, China
2016en
ABI

Аннотация

Abstract In this work, we present an alternative route to supply excessive selenium (Se) for the deposition of Sb 2 Se 3 thin films by the co-evaporation of Se and Sb 2 Se 3 . Scanning electron microscopy (SEM) images showed that additional Se modified the growth process and surface morphology of Sb 2 Se 3 thin films. X-ray diffraction (XRD) patterns confirmed that this co-evaporation process enhanced the beneficiary preferred orientations, and capacitance–voltage ( C – V ) measurement showed that the carrier concentration of the Sb 2 Se 3 absorber increased with the additional evaporation of Se. Accordingly, the efficiency of the devices employing co-evaporated Sb 2 Se 3 absorber layers increased significantly from 2.1 to 3.47% with a open-circuit voltage ( V OC ) of 364 mV, a short-circuit current density ( J SC ) of 23.14 mA/cm 2 , and a fill factor (FF) of 41.26%.

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DOI
10.7567/apex.9.052302

Цитирования и источники

Цитирований: 4Использованных источников: 0
Показатели — AkademScholar