Deuterium isotope effect on bulk heterojunction solar cells. Enhancement of organic photovoltaic performances using monobenzyl substituted deuteriofullerene acceptors.

Org Lett

WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai 980-8577, Japan, Photovoltaic Materials Unit, National Institute for Materials Science , Tsukuba 305-0047, Japan, and Chemistry Department, Faculty of Science, and Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia.

Published: November 2013

A series of novel monobenzyl-substituted deuteriofullerenes (BnDCs) were synthesized efficiently through Co-catalyzed selective monofunctionalization of C60. Bulk heterojunction solar cells, based on poly(3-hexylthiophene) as the donor and BnDCs as the acceptors, exhibited higher photovoltaic performances as compared to the corresponding protonated BnHCs devices.

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http://dx.doi.org/10.1021/ol4026606DOI Listing

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