Morphology control of solution processable small molecule bulk heterojunction solar cells via solvent additives

Jin Kuen Park; Chunki Kim; Bright Walker; Thuc Quyen Nguyen; Jung Hwa Seo

doi:10.1039/c2ra01182d

Morphology control of solution processable small molecule bulk heterojunction solar cells via solvent additives

Jin Kuen Park, Chunki Kim, Bright Walker, Thuc Quyen Nguyen, Jung Hwa Seo

Department of Physics

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

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%.

Original language	English
Pages (from-to)	2232-2234
Number of pages	3
Journal	RSC Advances
Volume	2
Issue number	6
DOIs	https://doi.org/10.1039/c2ra01182d
State	Published - 14 Mar 2012

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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%.",

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AU - Park, Jin Kuen

AU - Kim, Chunki

AU - Walker, Bright

AU - Nguyen, Thuc Quyen

AU - Seo, Jung Hwa

PY - 2012/3/14

Y1 - 2012/3/14

N2 - 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%.

AB - 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%.

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Morphology control of solution processable small molecule bulk heterojunction solar cells via solvent additives

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