Air processed organic photovoltaic devices incorporating a MoOx anode buffer layer

被引：27

作者：

Bovill, Edward S. R. ^{[1
]}

Griffin, Jonathan ^{[1
]}

Wang, Tao ^{[1
]}

Kingsley, James W. ^{[1
,2
]}

Yi, Hunan ^{[3
]}

Iraqi, Ahmed ^{[3
]}

Buckley, Alastair R. ^{[1
]}

Lidzey, David G. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] Ossila Ltd, Kroto Innovat Ctr, Sheffield S3 7HQ, S Yorkshire, England

[3] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

POLYMER SOLAR-CELLS; POWER CONVERSION EFFICIENCY; MOLYBDENUM OXIDE; FILMS;

D O I：

10.1063/1.4804294

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Molybdenum oxide (MoOx) has been shown to act as an efficient hole extraction layer in organic photovoltaic (OPV) devices. However, exposing MoOx films to air is problematic as it is hygroscopic; the uptake of moisture having a negative impact on its electronic properties. Here, we use spectroscopic ellipsometry to characterise the uptake of water, and fabricate PCDTBT:PC70BM based OPVs to determine its effects on device performance. We then show that thermally annealing MoOx reduces its hygroscopicity, permitting it to be processed in air. Using this process, we create air-processsed OPVs having PCEs (power conversion efficiencies) of up to 5.36%. (C) 2013 AIP Publishing LLC.

引用

页数：4

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