Issue 6, 2012
From the journal:

RSC Advances

Morphology control of solution processable small molecule bulk heterojunction solar cellsviasolvent additives†

Jin Kuen Park,a   Chunki Kim,a   Bright Walker,ac   Thuc-Quyen Nguyen*a  and  Jung Hwa Seo*b  

* Corresponding authors

a Center for Polymers and Organic Solids, Department of Chemistry & Biochemistry, University of California, Santa Barbara, California, United States
E-mail: quyen@chem.ucsb.edu

b Department of Materials Physics, College of Natural Science, Dong-A University, Busan, Republic of Korea
E-mail: seojh@dau.ac.kr

c Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.

Abstract

A new donor–acceptor type small molecule with dithienothiophene and diketopyrrolopyrrole units has been synthesized for application in organic solar cells. In order to optimize the nanoscale morphology of the small molecule solar cells, additives such as 1,8-diiodooctane (DIO) and 1-chloronaphthalene (CN) are used. The use of CN significantly suppresses molecular aggregation and allows suitable phase separation, enhancing power conversion efficiency from 0.5% to 2.2%.

Graphical abstract: Morphology control of solution processable small molecule bulk heterojunction solar cellsviasolvent additives

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Article information

DOI
https://doi.org/10.1039/C2RA01182D
Article type
Communication
Submitted
25 Nov 2011
Accepted
27 Dec 2011
First published
06 Feb 2012

RSC Adv., 2012,2, 2232-2234

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Morphology control of solution processable small molecule bulk heterojunction solar cellsviasolvent additives

J. K. Park, C. Kim, B. Walker, T. Nguyen and J. H. Seo, RSC Adv., 2012, 2, 2232 DOI: 10.1039/C2RA01182D

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