An efficient electron storage photovoltaic cell based on TiO2/carbon aerogel composite prepared by in-situ method

作者：Li, Xueliang^*; Wang, Hongliu; Chen, Jiejie; Zhou, Qiao; Xiao, Zhenghui

来源：Electrochimica Acta, 2014, 145: 281-285.

DOI：10.1016/j.electacta.2014.08.067

• Photovoltaic cell
• energy conversion
• electron storage
• TiO2/carbon aerogel
• in-situ method

An encouraging electron storage photovoltaic cell (ESPC) based on TiO2/carbon aerogel (TCA) composite prepared by in-situ method has been developed to simultaneously achieve solar energy conversion and electron storage. The structures, morphologies, and electrochemical performances of the TCAs are investigated by X-ray diffractometry, scanning and transmission electron microscopy, UV-vis absorption, charge-discharge test and electrochemical impedance spectroscopy. The uniformly dispersed TCA at 550 degrees C shows typical porous spherical structure with the large BET area of 556.1 m(2) g(-1). The ESPC exhibits excellent electrochemical properties with the highest open-circuit photovoltage of 750 mV, the maximum short-circuit current density of 15.3 mA cm(-2) and the capacity retention rate of 88% after 50 cycles. And the ESPC formed by two electrodes provides a successful solution of energy conversion and electron storage simultaneously for the direct photovoltaic cells.

• 出版日期2014-11-1
• 单位合肥工业大学; 中国科学技术大学