Enhancement of Energy Conversion Efficiency for Dye Sensitized Solar Cell Using Zinc Oxide Photoanode

Euroinvent ICIR 2018

Jamalullail, N.^1 ; Smohamad, I.^1,2,3 ; Nnorizan, M.^1,2,3 ; Mahmed, N.^2,4

School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis-Arau

02600, Malaysia^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Perlis, Malaysia^2

Advanced Multi-Disciplinary MEMS-Based Integrated NCER Centre of Excellence (AMBIENCE), Universiti Malaysia Perlis, Perlis, Malaysia^3

School of Material Engineering, Universiti Malaysia Perlis, Perlis, Malaysia^4

关键词: Average particle size;    Doctor blade technique;    Electrical performance;    Fabrication process;    High electron mobility;    Recombination rate;    Titanium dioxides (TiO2);    Transparent conductive oxides;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012048/pdf
DOI  :  10.1088/1757-899X/374/1/012048

来源: IOP

【 摘 要 】

Dye sensitized solar cell (DSSC) is a third generation solar cell that is well known for its low cost, simple fabrication process and promised reasonable energy conversion efficiency. Basic structure of DSSC is composed of photoanode, dye sensitizer, electrolyte that is sandwiched together in between two transparent conductive oxide (TCO) glasses. Each of the components in the DSSC contributes important role that affect the energy conversion efficiency. In this research, the commonly used titanium dioxide (TiO2) photoanode has previously reported to have high recombination rate and low electron mobility which caused efficiency loss had been compared with the zinc oxide (ZnO) photoanode with high electron mobility (155 cm2V-1s-1). Both of these photoanodes had been deposited through doctor blade technique. The electrical performance of the laboratory based DSSCs were tested using solar cell simulator and demonstrated that ZnO is a better photoanode compared to TiO2with the energy conversion efficiency of 0.34% and 0.29% respectively. Nanorods shape morphology was observed in ZnO photoanode with average particle size of 41.60 nm and average crystallite size of 19.13 nm. This research proved that the energy conversion efficiency of conventional TiO2based photoanode can be improved using ZnO material.