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

descriptionPublicationkeyboard_double_arrow_right Article , Journal 02 Dec 2011 Korea (Republic of) Publisher:WileyJournal:Macromolecular Rapid Communications, volume 33, pages 140-145 (issn: 1022-1336, eissn: 1521-3927,

Authors: Lee, Junghoon; Yun, Myoung Hee; Kim, Jonggi; Kim, Jin Young; Yang, Changduk;

doi: 10.1002/marc.201100643

pmid: 22135103

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

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Abstract

AbstractAn 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 (Jsc) 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.

Country

Korea (Republic of)

Related Organizations

UNIST (Ulsan National Institute of Science and Technology)
Korea (Republic of)
Center for Advanced Energy Studies
United States
Center for Advanced Energy Studies
United States
Ulsan National Institute of Science and Technology
Korea (Republic of)
Ulsan National Institute of Science and Technology
Korea (Republic of)

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Keywords

Aniline Compounds, dimethylphenylamine, Small molecules, Overall power conversion efficiency, Ketones, Diketopyrrolopyrroles, Energy funnels, Control device, Solar Energy, Pyrroles, Cost effective

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