Hydrogenated Amorphous Silicon Solar Cells on Textured Flexible Substrate Copied From a Textured Glass Substrate Template

Author

Yang, Chieh-Hung ; Hsueh, Chun-Yuan ; Yeh, Dan-Ju ; Ho, Chung-I ; Leu, Chyi-Ming ; Yeh, Yung-Hui ; Lee, Si-Chen

Author_Institution

Grad. Inst. of Electron. Eng. & Grad. Inst. of Photonic & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan

Volume

32

Issue

9

fYear

2011

Firstpage

1254

Lastpage

1256

Abstract

It is difficult to prepare textured surface on flexible substrate reproducibly for solar cell application. A novel method is developed that uses polyimide film to coat on a textured glass substrate as a template substrate and then peeled off as the flexible substrate. The surface morphology of the flexible substrate could faithfully reproduce the template as measured by atomic force microscopy. The hydrogenated amorphous silicon (a-Si:H) thin film solar cell was fabricated on the flexible substrate successfully. The results of I-V characteristics and spectral response confirm that the efficiency of textured solar cells increases as compared to that on a flat substrate. This technology will find application in making complicated reusable substrate for flexible electronics.

Keywords

amorphous semiconductors; atomic force microscopy; elemental semiconductors; flexible electronics; glass; polymer films; silicon; solar cells; surface morphology; I-V characteristics; Si; atomic force microscopy; flexible electronics; hydrogenated amorphous thin film silicon solar cells; polyimide film; spectral response; surface morphology; textured flexible substrate; textured glass substrate template; Glass; Photovoltaic cells; Silicon; Substrates; Surface morphology; Surface texture; Surface treatment; Amorphous silicon; flexible electronics; solar cell;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2011.2159259

Filename

5940988