Performance improvements of organic solar cell using dual cathode buffer layers

被引：8

作者：

Sachdeva, Sheenam ^{[1
]}

Kaur, Jagdish ^{[1
]}

Sharma, Kriti ^{[2
]}

Tripathi, S. K. ^{[1
]}

机构：

[1] Panjab Univ, Ctr Adv Study Phys, Chandigarh 160014, India

[2] GGDSD Coll, Dept Phys, Sec 31, Chandigarh, India

来源：

CURRENT APPLIED PHYSICS | 2018年 / 18卷 / 12期

关键词：

Buffer layer; TAPC/C70 organic solar cell; LiF; MoO3; Exciton; Quenching; EXCITON DIFFUSION LENGTH; HETEROJUNCTION CELLS; PHOTOVOLTAIC CELLS; GAP ABSORPTION; EFFICIENCY; PARAMETERS; INTERLAYER; ELECTRON;

D O I：

10.1016/j.cap.2018.10.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study deals with the effect of dual cathode buffer layer (CBL) on the performance of bilayer of 4,4'cyclohexylidenebis[N,N-bis(4-methylphenyl)benzenamine] (TAPC) and fullerene (C70)-based organic solar cell (OSC) with low donor concentration. OSC devices with CBLs have been fabricated using thermal vapor deposition technique. We report the use of lithium fluoride (LiF) and molybdenum trioxide (MoO3) as CBLs. The insertion of LiF between C70 and aluminium (Al) electrode enhances the power conversion efficiency (PCE) of device from 1.89% to 2.47% but quenching of photogenerated excitons is observed at interface of C70 and LiF layers. Incorporation of MoO3 between LiF and Al electrode further enhances PCE of device to 3.51%. This has also improved the material quality and device properties, by preventing the formation of gap states and diminishing exciton quenching.

引用

页码：1592 / 1599

页数：8

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