Ion doping of graphene for high-efficiency heterojunction solar cells.

Ion doping of graphene for high-efficiency heterojunction solar cells.

Nanoscale (2013-01-30)

Xinming Li, Dan Xie, Hyesung Park, Miao Zhu, Tingying Helen Zeng, Kunlin Wang, Jinquan Wei, Dehai Wu, Jing Kong, Hongwei Zhu

PMID23358527

摘要

We demonstrated the p-type chemical doping by chlorine and nitrate anions to enhance the Schottky junction in the solar cell. Nitrate ions were found to be more effective for reducing the sheet resistance and enlarging the work function of graphene for effective charge separation and transport, and the efficiency was increased to 9.2% by a factor of 1.68 under AM 1.5 illumination.