Education: Doctoral degree

Degree: PhD

Status: Graduated

Thesis title: Preparation and performance of materials related to flexible substrate thin film photovoltaic cells

Research Direction: thin film solar cells

Graduation to: Henan Normal University

Introduction: Flexible microcrystalline silicon thin-film solar cells can be mass-produced on a reel-to-reel basis, featuring rollability, light weight and low cost, which are easy to carry and widely used. To address the problems of low absorption coefficient, unstable interface and poor structural uniformity, new materials and processes are developed to optimize the trapped light structure of flexible thin-film solar cells, solve the Al-Si interface problem and improve the quality of silicon thin film. Firstly, the aluminum back electrode with woven surface is prepared on polyimide (PI) substrate by using RF magnetron sputtering technology, and the mechanism of film growth and surface weave formation is analyzed; secondly, aluminum-nickel alloy is used as a barrier layer for flexible silicon-based thin-film solar cells, which plays a good barrier effect on the interdiffusion between aluminum electrode and silicon film, and its barrier mechanism is analyzed; again, the two-step growth method is used Finally, the optimal deposition conditions of transparent zinc-aluminum oxide thin film (ZnO:Al) are determined, and the reasons for the structural changes of the film and its influence law on the performance are analyzed and discussed.

Entrance date: 2006-09-01

Graduation date: 2011-06-30

Email: yuehongyun@htu.edu.cn