Improve the thin film morphology and efficiency performance of P3HT:PCBM based solar cells by applying external electric fields

Author

Shen, YU-Min ; Chen, Chao-Shuo ; Ma, Shou-Yuan ; Lin, Ching-Fuh

Author_Institution

Grad. Inst. of Photonics & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2011

fDate

19-24 June 2011

Abstract

Many treatments such as thermal annealing, slow drying and adding additives had been promoted to increase the efficiency of polymer solar cells based on P3HT:PCBM blend system. However, the methods mentioned above are hard to control polymer material order. The method of using horizontally external electric field on polymer thin films is not only arranging polymer materials regularly, but also improving morphology of P3HT:PCBM thin films. Therefore, the device applied with electric field has better performance which power conversion efficiency (PCE) raises from 3.04% to 3.46%.

Keywords

annealing; electric fields; solar cells; thin films; P3HT:PCBM blend system; PCE; additives; efficiency performance; horizontally external electric field; polymer material order; polymer solar cells; polymer thin films; power conversion efficiency; slow drying; thermal annealing; thin film morphology; Electric fields; Performance evaluation; Photovoltaic cells; Polymers; Surface morphology; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE

Conference_Location

Seattle, WA

ISSN

0160-8371

Print_ISBN

978-1-4244-9966-3

Type

conf

DOI

10.1109/PVSC.2011.6186171

Filename

6186171