Open-circuit voltage enhancement of inverted polymer bulk heterojunction solar cells by doping NaYF4 nanoparticles/PVP composites

Meng, Fanxu, Liu, Shuang, Wang, Yongfan, Tao, Chen, Xu, Peng, Guo, Wenbin, Shen, Liang, Zhang, Xindong and Ruan, Shengping (2012) Open-circuit voltage enhancement of inverted polymer bulk heterojunction solar cells by doping NaYF4 nanoparticles/PVP composites. Journal of Materials Chemistry, 22 42: 22382-22386. doi:10.1039/c2jm35513b


Author Meng, Fanxu
Liu, Shuang
Wang, Yongfan
Tao, Chen
Xu, Peng
Guo, Wenbin
Shen, Liang
Zhang, Xindong
Ruan, Shengping
Title Open-circuit voltage enhancement of inverted polymer bulk heterojunction solar cells by doping NaYF4 nanoparticles/PVP composites
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 0959-9428
1364-5501
Publication date 2012-11
Sub-type Article (original research)
DOI 10.1039/c2jm35513b
Open Access Status Not Open Access
Volume 22
Issue 42
Start page 22382
End page 22386
Total pages 5
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2013
Language eng
Formatted abstract
NaYF 4 nanoparticles (NPs) were synthesized by a facile solvothermal approach using polyvinylpyrrolidone (PVP) as a surfactant. The NPs were doped into P3HT:PCBM blend to fabricate inverted polymer bulk heterojunction (BHJ) solar cells. The dependence of device performance on the weight ratio of NPs in the blend film was investigated. The results showed that the open-circuit voltage was apparently enhanced by doping NaYF 4 NPs/PVP composites into the active layer while maintaining the short-circuit current density and fill factor, leading to an increase in power conversion efficiency. The results of cyclic voltammetry measurement revealed that PVP had a deeper HOMO energy level than that of P3HT. PVP carried by NPs might also form charge transfer (CT) complexes with PCBM, which can make contributions to the open-circuit voltage. The study of photoluminescence (PL) spectra indicated clear evidence for enhanced exciton dissociation and reduced charge recombination in the blend film with NPs.
Keyword Nanoparticles
Enhanced exciton
Dissociation
Bulk heterojunction
BHJ
Polyvinylpyrrolidone
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes First published online: 13 September 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Organic Photonics and Electronics
Official 2013 Collection
 
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