4.6 Article

An efficient nonfullerene acceptor for all-small-molecule solar cells with versatile processability in environmentally benign solvents

Journal

ORGANIC ELECTRONICS
Volume 30, Issue -, Pages 105-111

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2015.12.017

Keywords

Nonfullerene acceptors; Environmentally benign solvents; Non-halogenated solvents; Thermal annealing; Energy losses

Funding

  1. National Research Foundation of Korea (NRF) - Korea Government (MSIP) [2009-0081571]
  2. Global Frontier R&D Program on Center for Multiscale Energy System - NRF under the MSIP, Korea [2012M3A6A7055540]
  3. National Research Foundation of Korea [2009-0081571] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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new structure of dicyanodistyrylbenzene-naphthalimide-based nonfullerene acceptor NIDCSN was synthesized and characterized to have a favorable electron accepting property and versatile processability in various organic solvents. The nonfullerene all-small-molecule solar cells comprising p-DTS(FBTTh2)(2) as the donor and NIDCSN as the acceptor exhibited a maximum power conversion efficiency of 3.45% with a remarkable open-circuit voltage of 1.04 V, together with similar device performances when fabricated in five different solvents including environmentally benign non-halogenated ones. (C) 2015 Elsevier B.V. All rights reserved.

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