NDLI: The effect of interfacial diffusion on device performance of polymer solar cells: a quantitative view by active-layer doping

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Science in China Series B: Chemistry : Volume 58, Issue 1, January 2015

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The effect of interfacial diffusion on device performance of polymer solar cells: a quantitative view by active-layer doping

Content Provider	Springer Nature Link
Author	Nian, Li Zhou, Jiadong Zeng, Kai Wu, Xiaoyan Liu, Linlin Xie, Zengqi Huang, Fei Ma, Yuguang
Copyright Year	2014
Abstract	The diffusion of constituent materials at interfaces is one of the key factors for device performance and stability. In this work, the effect of interfacial diffusion of a classic interfacial material PFN on device performance of polymer solar cells was studied quantitatively by doping PFN into active layer based on P3HT:PC$_{61}$BM blend. The PCEs of devices with 550 ppm PFN decrease to half compared to those of the control devices without PFN, which are mainly attributed to the decrease of short-circuit current (J $_{sc}$) and fill factor (FF). Advanced analyses of equivalent circuit, absorption spectra, and atomic force microscopy indicates that the presence of PFN in the active layer increases the leakage current, decreases the aggregation of P3HT, and reduces the phase separation. This research reveals the physical mechanism of interfacial diffusion in device performance and provides a basis for further improving the performance and stability of PSCs.
Starting Page	317
Ending Page	322
Page Count	6
File Format	PDF
ISSN	16747291
Journal	Science in China Series B: Chemistry
Volume Number	58
Issue Number	2
e-ISSN	18691870
Language	English
Publisher	Science China Press
Publisher Date	2015-01-05
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	bulk-heterojunction solar cells interfacial diffusion PFN stability degradation Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

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