title: High-performance graphene-based hole conductor-free perovskite solar cells: Schottky junction enhanced hole extraction and electron blocking.
abstract: Multilayered graphene and single-layered graphene are assembled onto perovskite films in the form of Schottky junctions and ohmic contacts, respectively, for the production of a graphene-based hole transporting material-free perovskite solar cell. Multilayered graphene extracts charge selectively and efficiently, delivering a higher efficiency of 11.5% than single-layered graphene (6.7%).
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.|Department of Electronic Engineering, Chinese University of Hong Kong, Shatin, Hong Kong, China.
authors: Keyou
authors: K
authors: Yan
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Zhanhua
authors: Z
authors: Wei
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Jinkai
authors: J
authors: Li
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Haining
authors: H
authors: Chen
authors: Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Ya
authors: Y
authors: Yi
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Xiaoli
authors: X
authors: Zheng
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Xia
authors: X
authors: Long
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Zilong
authors: Z
authors: Wang
authors: Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Jiannong
authors: J
authors: Wang
authors: Department of Electronic Engineering, Chinese University of Hong Kong, Shatin, Hong Kong, China.
authors: Jianbin
authors: J
authors: Xu
authors: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Shihe
authors: S
authors: Yang
keywords: Schottky junctions; hole-selective collection; multilayer graphene; perovskite solar cells