Heterojunction Photovoltaics Using Printed Colloidal Quantum Dots as a Photosensitive Layer

被引：64

作者：

Arango, Alex C. ^{[1
]}

Oertel, David C. ^{[2
]}

Xu, Youfeng ^{[1
]}

Bawendi, Moungi G. ^{[2
]}

Bulovic, Vladimir ^{[1
]}

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/nl803760j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate a bilayer photovoltaic device consisting of a heterojunction between colloidal cadmium selenide (CdSe) quantum dots (QDs) and a wide band gap organic hole-transporting thin film of N,N'-diphenyl-N,N'-bis(3-methylphenyl)[1,1'-biphenyl]-4,4'-diamine (TPD) molecules. The active light-absorbing film of QDs is nondestructively printed onto TPD using microcontact stamping. Indium-tin-oxide (ITO) provides the top contact. The resulting device structure can accommodate different size ON, produces an exceptionally large open circuit voltage (0.8 V) for an architecture with symmetric electrodes, and yields an internal quantum efficiency of 10% at the first QD absorption peak.

引用

页码：860 / 863

页数：4

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