Cost-Effective and Self-Textured Gallium-Doped Zinc Oxide Front Contacts for Hydrogenated Amorphous Silicon Thin-Film Solar Cells

Shu Hung Yu, Po Ching Ho, Chia Ling Lee, Chien-Chung Lin, Chih Hung Yeh, Chun-Yen Chang

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

We adopt a economical and original method to fabricate self-textured gallium-doped zinc oxide (GZO) front contacts for hydrogenated amorphous silicon (a-Si: H) single-junction solar cells. This technique involves an atmospheric-pressure plasma jet (APPJ) and a dc sputtering process. The electro-optical characteristics of the textured GZO films are mainly controlled by the haze of organosilicon underlayers deposited by the APPJ. The films exhibit an average optical transmittance of about 80% and resistivity below 9.91 x 10(-4) Omega cm. Moreover, compared with flat solar cells, textured cells fabricated on moderate GZO front contacts show 7.9 and 10.9% enhancements in conversion efficiency and short-circuit current density, respectively. (C) 2013 The Japan Society of Applied Physics
Original languageEnglish
Article number022301
JournalApplied Physics Express
Volume6
Issue number2
DOIs
StatePublished - Feb 2013

Keywords

  • ZNO; TRANSPARENT; DEPOSITION

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