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Device stability of inverted and conventional bulk heterojunction solar cells with MoO3 and ZnO nanoparticles as charge transport layers

DSpace at IIT Bombay

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Title Device stability of inverted and conventional bulk heterojunction solar cells with MoO3 and ZnO nanoparticles as charge transport layers
 
Creator KUNDU, S
GOLLU, SR
SHARMA, R
SRINIVAS, G
ASHOK, A
KULKARNI, AR
GUPTA, D
 
Subject Organic photovoltaic
UV-vis absorption
Mott-Schottky analysis
Stability
PHOTOVOLTAIC DEVICES
OXIDE NANOPARTICLES
ZINC-OXIDE
THIN-FILM
PERFORMANCE
P3HT/PCBM
 
Description The performance and stability of both inverted and conventional organic photovoltaic devices were examined with low temperature chemically synthesized ZnO nanoparticles as electron transporting layer and MoO3 as hole transporting layer. The device efficiency and energy conversion efficiency in inverted devices were found to be 3.48% and 68%, respectively, whereas, in conventional devices these were 2.86% and 55%, respectively. This change of efficiency in inverted and conventional devices relates with the change of flat-band voltage extracted from Mott-Schottky capacitance study. The inverted device shows excellent efficiency even after 250 h in unencapsulated condition. However, the conventional device efficiency degrades very quickly compared with the inverted one. Thus, the films deposition order plays a pivotal role for fabricating a stable and high performance organic photovoltaic device. (C) 2013 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2014-10-16T05:27:35Z
2014-10-16T05:27:35Z
2013
 
Type Article
 
Identifier ORGANIC ELECTRONICS, 14(11)3083-3088
1566-1199
1878-5530
http://dx.doi.org/10.1016/j.orgel.2013.07.016
http://dspace.library.iitb.ac.in/jspui/handle/100/15335
 
Language en