TY - JOUR
T1 - Exciton diffusion length and charge mobility in donor and acceptor materials in organic photovoltaics
T2 - Tetrabenzoporphyrin and silylmethyl[60] fullerene
AU - Tamura, Hiroyuki
AU - Matsuo, Yutaka
PY - 2014/4/8
Y1 - 2014/4/8
N2 - Exciton diffusion length and charge mobility in donor and acceptor materials are important factors for the energy conversion efficiency of organic voltaics. Here, we theoretically analyze these quantities for tetrabenzoporphyrin (BP) and silylmethyl[60] fullerene (SIMEF) that have been exploited for the donor and acceptor of interpenetrating heterojunction organic solar cells. The exciton diffusion length and the charge mobility are calculated by means of density functional theory (DFT) and Fermi's golden rule. The exciton diffusion length in the BP single crystal is found to be a few hundred nm. The charge mobility in the BP and SIMEF crystals exhibits a significant anisotropy.
AB - Exciton diffusion length and charge mobility in donor and acceptor materials are important factors for the energy conversion efficiency of organic voltaics. Here, we theoretically analyze these quantities for tetrabenzoporphyrin (BP) and silylmethyl[60] fullerene (SIMEF) that have been exploited for the donor and acceptor of interpenetrating heterojunction organic solar cells. The exciton diffusion length and the charge mobility are calculated by means of density functional theory (DFT) and Fermi's golden rule. The exciton diffusion length in the BP single crystal is found to be a few hundred nm. The charge mobility in the BP and SIMEF crystals exhibits a significant anisotropy.
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U2 - 10.1016/j.cplett.2014.03.013
DO - 10.1016/j.cplett.2014.03.013
M3 - Article
AN - SCOPUS:84896905566
VL - 598
SP - 81
EP - 85
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -