Photovoltaic studies of Dye Sensitized Solar cells Fabricated from Microwave Exposed Photo anodes

International Conference on Advances in Materials and Manufacturing Applications 2017

Ramachandran, Anju^1 ; Sreekala, C.O.^1 ; Sreelatha, K.S.^2 ; Jinchu, I.^1

Department of Physics, Amrita School of Arts and Sciences, Amritapuri, Amrita Vishwa Vidyapeetham, Amrita University, Kollam, India^1

Department of Physics, Govt. College, Kottayam, India^2

关键词: Counter electrodes;    Different frequency;    Exposure-time;    Hole transports;    Microwave exposure;    Photovoltaic;    Power conversion efficiencies;    Titanium dioxide films;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012151/pdf
DOI  :  10.1088/1757-899X/310/1/012151

来源: IOP

【 摘 要 】

The configuration of Dye Sensitized solar cells (DSSC), consists of sintered nanoparticle titanium dioxide film, dyes, electrolyte and counter electrodes. Upon the absorption of photons by the dye molecules, excitons are generated, subsequently electrons are injected into the TiO2photoanode. Afterward the electrons injected into the TiO2photoanode, to produce photocurrent, scavenged by redox couple, and the hole transport to the photo cathode. The power conversion efficiency of the device depends on the amount of dye adsorbed by the photoanode. This paper explores in enhancing the efficiency of the device by controlled microwave exposure. With same exposure time, the photoanode is exposed at three different frequencies. SEM analysis is carried out to find the porosity of the photoanode on exposure. Current density is found to have an effect on microwave exposure.