Synthesis of novel push-pull chromophores based on N-ethylcarbazole for vacuum deposition processed organic photovoltaics

Takahiro Kono, Yosei Shibata, Zhiping Wang, Tetsuhiko Miyadera, Yuji Yoshida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Two novel p-type materials, Cz(Et)ThOM and Cz(Et)OM - respectively with and without a thiophene π-spacing unit - have been synthesized for vacuum-deposited organic photovoltaics (OPVs). The power conversion efficiencies of planar heterojunction OPVs of the former are clearly higher than that of the latter. Further improvement of the device with Cz(Et)ThOM was obtained by employing bulk heterojunction structure and post-annealing. The structural analysis of thin films by synchrotron X-ray diffraction and atomic force microscopy shows that this improvement is due to Cz(Et)ThOM becoming highly ordered during annealing.

Original languageEnglish
Pages (from-to)958-960
Number of pages3
JournalChemistry Letters
Volume44
Issue number7
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Synthesis of novel push-pull chromophores based on N-ethylcarbazole for vacuum deposition processed organic photovoltaics'. Together they form a unique fingerprint.

  • Cite this