TY - JOUR
T1 - Electroabsorption and electrophotoluminescence spectra of some subphthalocyanines
AU - Awasthi, Kamlesh
AU - Nakamura, Kosuke
AU - Kono, Hirohiko
AU - Kobayashi, Nagao
AU - Ohta, Nobuhiro
N1 - Funding Information:
The present work was supported by the Network Joint Research Center for Materials and Devices at Hokkaido University. This work was partly supported by Grants-in-Aid for Scientific Research on Innovative Areas ( 25109502 , ‘Stimuli-responsive Chemical Species’), and Scientific Research (B) (No. 23350095 ), from the Ministry of Education, Culture, Sports, Science, and Technology, and that for Exploratory Research (No. 25620019 ) from JSPS .
PY - 2014/4/18
Y1 - 2014/4/18
N2 - 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.
AB - 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.
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U2 - 10.1016/j.cplett.2014.02.047
DO - 10.1016/j.cplett.2014.02.047
M3 - Article
AN - SCOPUS:84898447491
VL - 599
SP - 163
EP - 168
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -
