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Layer Structure Enhances Light Absorption

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Haihua Tang1, Yunfei Liu1, Shuang Liu1, DeJun Chen1, Yong Liu1, zhiyong Zhong2
1University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu, China
2University of Electronic Science and Technology of China, State Key Laboratory of Electronic Thin Films and Integrated Devices, Chengdu, China

A double absorbing layer based on amorphous silicon thin film is promising for solar cells because it considerably enhances the utilization of sunlight. Other potential applications can be found in the field of IR detection. Over the past few decades, hydrogenated amorphous silicon (a-Si:H) thin film has been widely studied because of its potential use in a wide variety of devices, such as photodetectors, large-area displays and xerographic applications.1-6 It was considered an especially strong candidate for preparing solar cells because of its remarkable advantages: low production...Read full article

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