On the spatial inhomogeneity of charge generation and collection in inverted all polymer solar cells

被引：5
|
作者：
Perulli, A. [1 ]
Lattante, S. [2 ]
Persano, A. [3 ]
Cola, A. [3 ]
Di Giulio, M. [2 ]
Anni, M. [2 ]
机构：
[1] Univ Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy
[2] Univ Salento, Dipartimento Matemat & Fis Ennio De Giorgi, I-73100 Lecce, Italy
[3] CNR, IMM, Unit Lecce, I-73100 Lecce, Italy
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期
关键词：
PHOTOCURRENT; MORPHOLOGY; DEVICES; PERFORMANCE; BLENDS; LAYER;
D O I：
10.1063/1.4817506
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Simultaneous photoluminescence (PL) and external quantum efficiency (EQE) confocal mapping is used to investigate the correlation between the local PL and the EQE in a regioregular poly(3-exylthiophene): poly(9,9-dioctylfluorene-co-benzothiadiazole) inverted bulk heterojunction solar cell. We show that the charge generation and charge collection are strongly non-uniform on a length scale up to 100 mu m. Our results evidence that organic solar cells optimization requires not only the control of the submicrometric active materials arrangement but also the control of the large scale device uniformity. (C) 2013 AIP Publishing LLC.
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页数：4
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