Nagarjuna, P. and Bagui, Anirban and Gupta, Vinay and Singh, Surya Prakash (2017) A highly efficient PTB7-Th polymer donor bulk hetero-junction solar cell with increased open circuit voltage using fullerene acceptor CN-PC70BM. Organic Electronics, 43. pp. 262-267. ISSN 1566-1199

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Abstract

Modified [6,6] -phenyl-C-70-butyric acid methyl ester (CN-PC70BM) is employed as an electron acceptor along with poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b; 4,5-b]clithiophene-2,6-diy]-alt-(4(2-ethylhexyl)-3-fluorothieno[3,4-6]thiophene-)-2-carboxylate-2-6-diyl)] (PTB7-Th) polymer as donor for solution-processed organic solar cells. Inverted device architecture is adopted to fabricate the photovoltaic devices. Using chloronaphthalene as an additive, a high power conversion efficiency (PCE) of 8.2% is achieved with an excellent open circuit voltage (V-oc) of 0.9 V, short-circuit current density (J(sc)) of 13.5 mA cm(-2) and fill factor of 0.68 as compared to PCE of 5.4% from the reference solar cell using PC70BM.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	14 Aug 2018 08:50
Last Modified:	14 Aug 2018 08:50
URI:	http://npl.csircentral.net/id/eprint/2595

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