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2. Development of ito/layered a-P Si:H film stack for silicon heterojunction solar cells

Author

Zhan Xu, Wang Jin, Rong Yang, Guangyu Chen, Dai Lingling, Meng Yuan, He Yanru, Ren Mingchong, Wang Qi, Ted Guo, Zhao Guanchao, Lin Zhang, Liwei Li, Gu Shibin, and Zhang Juan

Subjects
Materials science, Silicon, business.industry, chemistry.chemical_element, Hybrid solar cell, Quantum dot solar cell, Polymer solar cell, Indium tin oxide, Monocrystalline silicon, chemistry, Stack (abstract data type), Electronic engineering, Optoelectronics, Plasmonic solar cell, business
Abstract

This work focuses on the development of integrated front side film stack containing a-p Si:H film as the emitter and ITO film as the carrier collection layer in n-type silicon heterojunction (SHJ) solar cells. Doping concentration and thickness of a-p Si:H films, and O 2 /Ar flow ratio of DC sputtered ITO films were varied to obtain optimal single layer properties. A combined ITO/double a-p Si:H stack was then developed and optimized to improve fill factor (FF) of SHJ solar cells. As a result, FF higher than 78% with conversion efficiency of 21.6% have been achieved in this work.

Published
2015

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