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Efficiency Improvement of Organic Solar Cells via Introducing Combined Anode Buffer Layer to Facilitate Hole Extraction
Zhang X.2; Li Z.2; Zhang Z.2; Li S.3; Liu C.2; Guo W.2; Shen L.2; Wen S.2; Qu S.3; Ruan S.2
2016-07-07
Source PublicationJournal of Physical Chemistry C
ISSN19327455 19327447
Volume120Issue:26Pages:13954-13962
AbstractIn this article, we introduce a new method to assist hole extraction by incorporating carbon nanodots (CNDs) interfacial layer between active layer and hole-transporting layer for organic solar cells (OSCs). Under an optimal concentration of CNDs and specific film-forming conditions, a simultaneous enhancement of short-circuit current density (J) and fill factor (FF) was achieved, leading to the optimal power conversion efficiency up to 7.22%. Due to the nice conductivity of CNDs, the interlayer effectively bridged the separated islands of active layer to transport free charge carriers toward correct electrodes and reduced charge carrier recombination. The employment of interface modification depicted here can also provide a rough and uniform surface coating on polymer photolayer, leading to improved morphology and closer interface contact, and thus reduce the series resistance and increase FF of OSCs. In addition, the incorporation of CNDs also increased the light-harvesting of active layer. Therefore, the CNDs interfacial layer could play a dual role in the improvement of optical and electrical properties for OSCs.
DOI10.1021/acs.jpcc.6b03697
URLView the original
Language英語
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Cited Times [WOS]:8   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.University of Nebraska - Lincoln
2.Jilin University
3.Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang X.,Li Z.,Zhang Z.,et al. Efficiency Improvement of Organic Solar Cells via Introducing Combined Anode Buffer Layer to Facilitate Hole Extraction[J]. Journal of Physical Chemistry C,2016,120(26):13954-13962.
APA Zhang X..,Li Z..,Zhang Z..,Li S..,Liu C..,...&Ruan S..(2016).Efficiency Improvement of Organic Solar Cells via Introducing Combined Anode Buffer Layer to Facilitate Hole Extraction.Journal of Physical Chemistry C,120(26),13954-13962.
MLA Zhang X.,et al."Efficiency Improvement of Organic Solar Cells via Introducing Combined Anode Buffer Layer to Facilitate Hole Extraction".Journal of Physical Chemistry C 120.26(2016):13954-13962.
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