Yongmei Chen, Changsheng Cao, Tengfeng Xie, Xingqiao Wang, Ran Lu, Dejun Wang, Yubai Bai, Tiejin Li
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Photovoltaic properties of a liquid crystal porphyrin solid film
Optoelectric properties of a novel liquid crystal zinc tetraphenyltetrabenzoporphyrin (ZnTPTBP) is studied with the aid of surface photovoltaic spectroscopy (SPS) and electric-field-induced SPS. The surface photovoltage response at 550 nm under external field is assigned to the transmission in the columns of micro π system formed in ZnTPTBP solid film and is thought to be related with the electro-optical memory effect of liquid crystal porphyrin.
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