Overcoming Geminate Recombination and Enhancing Extraction in Solution-Processed Small Molecule Solar Cells

被引：78

作者：

Proctor, Christopher M. ^{[1
,2
]}

Albrecht, Steve ^{[3
]}

Kuik, Martijn ^{[1
,4
]}

Neher, Dieter ^{[3
]}

Thuc-Quyen Nguyen ^{[1
,4
,5
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[3] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany

[4] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[5] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah, Saudi Arabia

来源：

ADVANCED ENERGY MATERIALS | 2014年 / 4卷 / 10期

基金：

美国国家科学基金会;

关键词：

OPEN-CIRCUIT VOLTAGE; FREE-CARRIER GENERATION; NONGEMINATE RECOMBINATION; CHARGE SEPARATION; FILL FACTOR; BLENDS; TRANSPORT; DYNAMICS; LIFETIME; ENERGY;

D O I：

10.1002/aenm.201400230

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of processing conditions on charge transport and voltage dependent recombination losses in one of the most efficient solution-processed small molecule solar cell systems reported to date are studied. With careful control of the blend film morphology, geminate recombination (GR) can be completely overcome while reducing bimolecular recombination (BMR) to allow for efficient generation and collection of photogenerated charge carriers. These results highlight that a field-dependent generation mechanism is not necessarily an inherent molecular property. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：7

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