Optimizing P3HT/PCBM/MWCNT films for increased stability in polymer bulk heterojunction solar cells

被引：26
|
作者：
Singh, Vinamrita [1 ]
Arora, Swati [2 ]
Arora, Manoj [3 ]
Sharma, Vishal [1 ]
Tandon, R. P. [1 ]
机构：
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
[2] Univ Delhi, Zakir Husain Delhi Coll, Dept Phys, Delhi 110002, India
[3] Univ Delhi, Dept Phys, Ramjas Coll, Delhi 110007, India
来源：
PHYSICS LETTERS A | 2014年 / 378卷 / 41期
关键词：
Multi-walled carbon nanotubes; Organic solar cells; Degradation; Mobility; Interfaces; Charge carrier recombination; CARBON NANOTUBES; P3HT PCBM; DEGRADATION; PERFORMANCE; ABSORPTION; MECHANISMS; MORPHOLOGY; TRANSPORT; COMPLEX; OXYGEN;
D O I：
10.1016/j.physleta.2014.08.028
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of multi-walled carbon nanotubes on the properties of P3HT:PCBM based solar cells has been studied. The concentration of MWCNT was optimized at 0.2% and the concentration of P3HT:PCBM was increased from 20 mg/ml to 30 mg/ml to obtain highest efficiency. An increase in charge carrier mobility was also observed, which is attributed to high charge transport properties of MWCNT. The active layer was optically stable with respect to absorption, whereas the emission spectra revealed an increase in charge recombination with time. The solar cells doped with MWCNT exhibited increased stability as compared to undoped cells. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：3046 / 3054
页数：9
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