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Efficient inverted polymer solar cells with thermal-evaporated and solution-processed small molecular electron extraction layer

Authors :
Huai-Xin Wei
Zai-Quan Xu
Yan-Qing Li
Shuit-Tong Lee
Ai-Li Shi
Fu-Zhou Sun
Jian-Xin Tang
Source :
Applied Physics Letters. 102:133303
Publication Year :
2013
Publisher :
AIP Publishing, 2013.

Abstract

Efficient inverted polymer solar cell is reported upon by integrating with a small molecular 1,3,5-tri(phenyl-2-benzimi-dazolyl)-benzene (TPBi) electron extraction layer (EEL) at low processing temperature with thermal-evaporation and solution-process, resulting in the power conversion efficiencies of 3.70% and 3.47%, respectively. The potential of TPBi as an efficient EEL is associated with its suitable electronic energy level for electron extraction and hole blocking from the active layer to the indium tin oxide cathode.

Details

ISSN :
10773118 and 00036951
Volume :
102
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........0a5f811b6d3a17ec3886eb01de35c42a