Статья

9.2%-efficient core-shell structured antimony selenide nanorod array solar cells

Zhiqiang LiHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China. [email protected]Xiaoyang LiangHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaGang LiHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaHaixu LiuHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaHuiyu ZhangHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaJianxin GuoHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaJingwei ChenHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaKai ShenInstitute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou, 510632, ChinaXingyuan SanHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaWei YuHebei Key Laboratory of Optic-Electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, ChinaR.E.I. SchroppInstitute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou, 510632, ChinaYaohua MaiInstitute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou, 510632, China. [email protected]

2019en

ABI

Аннотация

Abstract Antimony selenide (Sb 2 Se 3 ) has a one-dimensional (1D) crystal structure comprising of covalently bonded (Sb 4 Se 6 ) n ribbons stacking together through van der Waals force. This special structure results in anisotropic optical and electrical properties. Currently, the photovoltaic device performance is dominated by the grain orientation in the Sb 2 Se 3 thin film absorbers. Effective approaches to enhance the carrier collection and overall power-conversion efficiency are urgently required. Here, we report the construction of Sb 2 Se 3 solar cells with high-quality Sb 2 Se 3 nanorod arrays absorber along the [001] direction, which is beneficial for sun-light absorption and charge carrier extraction. An efficiency of 9.2%, which is the highest value reported so far for this type of solar cells, is achieved by junction interface engineering. Our cell design provides an approach to further improve the efficiency of Sb 2 Se 3 -based solar cells.

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Идентификаторы

DOI: 10.1038/s41467-018-07903-6

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