Flexible Polymer Photovoltaic Devices Prepared With Inverted Structures on Metal Foils

Author

Chen, Fang-Chung ; Wu, Jyh-Lih ; Lee, Chia-Ling ; Huang, Wen-Che ; Chen, Huang-Ming Philips ; Chen, Wen-Chang

Author_Institution

Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu

Volume

30

Issue

7

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

727

Lastpage

729

Abstract

We have prepared top-illuminated organic photovoltaic devices on stainless-steel substrates, using molybdenum trioxide/indium tin oxide as the transparent top electrode. Incorporating an Al counter electrode grid having a shadow fraction of 10% effectively reduced the device resistance, thereby enhancing the power conversion efficiency to ca. 3%. This device exhibited superior mechanical flexibility. The inverted device architecture eliminated the need to use low-work-function metals, which are air sensitive and easily oxidized, thereby improving the air stability of the flexible devices.

Keywords

aluminium; flexible electronics; foils; indium compounds; metallic thin films; molybdenum compounds; photovoltaic cells; polymers; stability; transparency; Al counter electrode grid; FeCCrJk; MoO₃-ITO-Al; air stability; device resistance; flexible polymer photovoltaic device; indium tin oxide electrode; inverted structure; mechanical flexibility; metal foil; molybdenum trioxide electrode; power conversion efficiency; shadow fraction; stainless-steel substrate; top-illuminated organic photovoltaic device; transparent top electrode; Energy resources; flexible structures; photovoltaic cells; polymers;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2009.2022345

Filename

5071275