Electroabsorption and electrophotoluminescence spectra of some subphthalocyanines

Kamlesh Awasthi, Kosuke Nakamura, Hirohiko Kono*, Nagao Kobayashi, Nobuhiro Ohta

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Electric field effects on the electronically excited states have been investigated for two subphthalocyanines, F-SubPc and T-SubPc, which have the electron-withdrawing and electron-donating substituents, respectively. In contrast with T-SubPc, the directions of the electric dipole moment in the excited states S1 and S2 of F-SubPc are found to be very different from that in the ground state S0. The S1 and S2 states of T-SubPc show a prominent charge-transfer character, suggesting that T-SubPc is a suitable candidate as the dye in photovoltaic cells. Electrophotoluminescence spectra suggest that the intersystem crossing from S1 to T1 is enhanced by electric fields.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalChemical Physics Letters
Volume599
DOIs
StatePublished - 18 Apr 2014

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