Toward the Realization of A Practical Diketopyrrolopyrrole‐Based Small Molecule for Improved Efficiency in Ternary BHJ Solar Cells | Zendy

Lee Junghoon | Zendy; Yun Myoung Hee | Zendy; Kim Jonggi | Zendy; Kim Jin Young | Zendy; Yang Changduk | Zendy

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Toward the Realization of A Practical Diketopyrrolopyrrole‐Based Small Molecule for Improved Efficiency in Ternary BHJ Solar Cells

Author(s) -

Lee Junghoon,

Yun Myoung Hee,

Kim Jonggi,

Kim Jin Young,

Yang Changduk

Publication year - 2012

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.201100643

Subject(s) - ternary operation , energy conversion efficiency , realization (probability) , materials science , funnel , small molecule , organic solar cell , molecule , optoelectronics , polymer solar cell , combinatorial chemistry , nanotechnology , chemistry , organic chemistry , computer science , polymer , biochemistry , statistics , mathematics , composite material , programming language

An easily accessible DPP‐based small molecule ( DMPA‐DTDPP ) has been synthesized by a simple and efficient route. The resulting molecule, when incorporated into a P3HT:PCBM‐based BHJ solar cell, is found to significantly improve the efficiency. The utility of DMPA‐DTDPP as an additive yields an increase in the short circuit current density ( J sc ) because DMPA‐DTDPP serves as an energy funnel for P3HT excitons at the P3HT:PCBM interfaces, resulting in an improved overall power conversion efficiency, compared to the P3HT:PCBM control device. Considering the trouble‐free and cost effective synthesis of DMPA‐DTDPP , it may prove very useful in high‐performance solar cells.

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