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Xicheng Liu
Researcher at Tianjin University
Publications - 19
Citations - 980
Xicheng Liu is an academic researcher from Tianjin University. The author has contributed to research in topics: Perovskite (structure) & Perovskite solar cell. The author has an hindex of 15, co-authored 19 publications receiving 867 citations. Previous affiliations of Xicheng Liu include Qufu Normal University.
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Journal ArticleDOI
Over 20% PCE perovskite solar cells with superior stability achieved by novel and low-cost hole-transporting materials
Fei Zhang,Fei Zhang,Zhiqiang Wang,Hongwei Zhu,Norman Pellet,Norman Pellet,Jingshan Luo,Chenyi Yi,Xicheng Liu,Hongli Liu,Shirong Wang,Xianggao Li,Yin Xiao,Shaik M. Zakeeruddin,Dongqin Bi,Michael Grätzel +15 more
TL;DR: In this article, two novel molecular hole-transporting materials (HTMs) using the thiophene core were designed and synthesized (Z25 and Z26), and the perovskite solar cells based on Z26 exhibited a remarkable overall power conversion efficiency (PCE) of 20.1%, which is comparable to 20.6% obtained with spiroOMeTAD.
Journal ArticleDOI
Energy level tuning of TPB-based hole-transporting materials for highly efficient perovskite solar cells
Yakun Song,Songtao Lv,Xicheng Liu,Xianggao Li,Shirong Wang,Huiyun Wei,Li Dongmei,Yin Xiao,Qingbo Meng +8 more
TL;DR: The TPBC based doping-free perovskite solar cell afforded an impressive PCE of 13.10% under AM 1.5G illumination, which is the first case of an effective device with TPB-based doping- free HTMs.
Journal ArticleDOI
Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells
Fei Zhang,Fei Zhang,Shirong Wang,Hongwei Zhu,Xicheng Liu,Hongli Liu,Xianggao Li,Yin Xiao,Shaik M. Zakeeruddin,Michael Grätzel +9 more
TL;DR: In this article, three hole-transporting materials (HTMs) based on the phenothiazine core containing 4,4-dimethyltriphenylamine (Z28), N-ethylcarbazole (Z29), and 4, 4-dimethoxytriphenylonitriou tetramethylpolysilicon (Z30) as the peripheral groups connected by double bonds were designed and synthesized.
Journal ArticleDOI
Dopant-free star-shaped hole-transport materials for efficient and stable perovskite solar cells
Fei Zhang,Fei Zhang,Xiaoming Zhao,Chenyi Yi,Dongqin Bi,Xiangdong Bi,Peng Wei,Xicheng Liu,Shirong Wang,Xianggao Li,Shaik Mohammed Zakeeruddin,Shaik Mohammed Zakeeruddin,Michael Grätzel +12 more
TL;DR: In this article, two star-shaped TPA-based small-molecule materials (Z1012 and Z1013) were designed and synthesized in order to achieve high hole mobility and suitable energy levels for CH3NH3PbI3-based perovskite solar cells.
Journal ArticleDOI
A novel one-step synthesized and dopant-free hole transport material for efficient and stable perovskite solar cells
Xiaoming Zhao,Fei Zhang,Fei Zhang,Chenyi Yi,Dongqin Bi,Xiangdong Bi,Peng Wei,Jingshan Luo,Xicheng Liu,Shirong Wang,Xianggao Li,Shaik Mohammed Zakeeruddin,Shaik Mohammed Zakeeruddin,Michael Grätzel +13 more
TL;DR: In this paper, a hole transport material ST1 was synthesized by a one-step Heck reaction and compared to Spiro-OMeTAD, perovskite solar cells with ST1 exhibit a remarkable overall power conversion efficiency of 15.4%.