Complexation of pyrrolidinofullerenes and zinc-phthalocyanine in a bilayer organic solar cell structure
Complexation of pyrrolidinofullerenes and zinc-phthalocyanine in a bilayer organic solar cell structure
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DOI：
10.1063/1.2146070
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发表时间：
2005-12-12
影响因子：
4
通讯作者：
Lyubovskaya, RN
中科院分区：
文献类型：
--
作者：
Koeppe, R;Sariciftci, NS;Lyubovskaya, RN
Bilayer organic solar cells were prepared using zinc-phthalocyanine (ZnPc) and a novel, highly soluble pyrollidinofullerene bearing three chelating pyridyl groups (PyF). The formation of supramolecular complexes between the two compounds is indicated by a significantly increased solubility of ZnPc in dichloromethane upon addition of the PyF. Spin-coating a film of PyF on a vacuum-evaporated film of ZnPc results in a solar cell yielding short circuit current (I-sc) densities of 3 mA/cm(2) and open-circuit voltages (V-oc) of about 0.4 V under 100 mW/cm(2) simulated AM1.5 illumination. Solar cells prepared by substituting the PyF with a fullerene derivative forming no complexes with ZnPc show significantly lower photovoltaic conversion efficiencies.
