一种生物光伏转换装置，该装置使用吸附在纳米晶二氧化钛薄膜电极上的、源自螺旋藻叶绿素的氯e6。

Bio-photovoltaic conversion device using chlorine-e6 derived from chlorophyll from Spirulina adsorbed on a nanocrystalline TiO2 film electrode.

作者信息

Amao Yutaka, Komori Tasuku

机构信息

Department of Applied Chemistry, Oita University, Dannoharu 700, Oita 870-1192, Japan.

出版信息

Biosens Bioelectron. 2004 Mar 15;19(8):843-7. doi: 10.1016/j.bios.2003.08.003.

DOI:10.1016/j.bios.2003.08.003

PMID:15128103

Abstract

A bio-photovoltaic conversion device based on dye-sensitised solar cell (DSSC) using the visible light sensitisation of chlorine-e6 (Chl-e6) derived from chlorophyll from Spirulina adsorbed on a nanocrystalline TiO2 film was developed. Form fluorescence spectrum of Chl-e6 adsorbed on a nanocrystalline TiO2 film, the emission of Chl-e6 was effectively quenched by TiO2 nanocrystalline indicating that the effective electron injection from the excited singlet state of Chl-e6 into the conduction band of TiO2 particles occurred. The short-circuit photocurrent density (Isc). the open-circuit photovoltage (Voc). and the fill factor (FF) of solar cell using Chl-e6 adsorbed on a nanocrystalline TiO2 film electrode were estimated to be 0.305 +/- 0.012 mA cm(-2), 426 +/- 10 mV, and 45.0%, respectively. IPCE values were reached a maximum around the wavelength of absorption maximum (7.40% at 400 nm; 1.44% at 514 nm and 2.91% at 670 nm), indicating that the DSSC using visible light sensitisation of nanocrystalline TiO2 film by Chl-e6 was developed.

摘要

开发了一种基于染料敏化太阳能电池（DSSC）的生物光伏转换装置，该装置利用吸附在纳米晶TiO₂薄膜上的螺旋藻叶绿素衍生的氯e6（Chl-e6）的可见光敏化作用。从吸附在纳米晶TiO₂薄膜上的Chl-e6的荧光光谱来看，Chl-e6的发射被TiO₂纳米晶有效猝灭，这表明发生了从Chl-e6的激发单重态到TiO₂颗粒导带的有效电子注入。使用吸附在纳米晶TiO₂薄膜电极上的Chl-e6的太阳能电池的短路光电流密度（Isc）、开路光电压（Voc）和填充因子（FF）分别估计为0.305±0.012 mA cm⁻²、426±10 mV和45.0%。IPCE值在吸收最大值波长附近达到最大值（400 nm处为7.40%；514 nm处为1.44%，670 nm处为2.91%），这表明开发了利用Chl-e6对纳米晶TiO₂薄膜进行可见光敏化的DSSC。