Z
Zhiqun He
Researcher at Beijing Jiaotong University
Publications - 116
Citations - 1895
Zhiqun He is an academic researcher from Beijing Jiaotong University. The author has contributed to research in topics: Perovskite (structure) & Triphenylene. The author has an hindex of 20, co-authored 107 publications receiving 1556 citations. Previous affiliations of Zhiqun He include University of Reading & University of East Anglia.
Papers
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Journal ArticleDOI
Anomalously large interface charge in polarity-switchable photovoltaic devices: an indication of mobile ions in organic–inorganic halide perovskites
Yong Zhao,Chunjun Liang,Huimin Zhang,Dan Li,Ding Tian,Guobao Li,Xiping Jing,Wenguan Zhang,Weikang Xiao,Qian Liu,Fujun Zhang,Zhiqun He +11 more
TL;DR: In this article, it was proved that a large amount of mobile ions exist in organic-inorganic halide perovskites and the accumulated ions at the interface change the band bending of the semiconductor, leading to polarity switchable photovoltaic devices.
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Organic–Inorganic Perovskite Light‐Emitting Electrochemical Cells with a Large Capacitance
Huimin Zhang,Hong Lin,Chunjun Liang,Hong Liu,Jingjing Liang,Yong Zhao,Wenguan Zhang,Mengjie Sun,Weikang Xiao,Han Li,Stefano Polizzi,Dan Li,Fujun Zhang,Zhiqun He,Wallace C. H. Choy +14 more
TL;DR: In this paper, a low-temperature solution-processed organic-inorganic halide perovskites have drawn worldwide attention due to their remarkable performance in photovoltaic devices.
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Dynamic interface charge governing the current–voltage hysteresis in perovskite solar cells
Huimin Zhang,Chunjun Liang,Yong Zhao,Mengjie Sun,Hong Liu,Jingjing Liang,Dan Li,Fujun Zhang,Zhiqun He +8 more
TL;DR: The accumulation of mobile ions causes space charge at interfaces in perovskite solar cells, and the dynamic process of the interface charge governs the current-voltage hysteresis.
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Blue electroluminescence of novel pyrazoloquinoline and bispyrazolopyridine derivatives in doped polymer matrices
TL;DR: In this paper, blue electroluminescence has been demonstrated using novel materials 1,3-diphenyl-4-methyl-1H-pyrazolo[3,4-b]quinoline (PAQ4) and 4-phenyl-1,3,5,7-tetramethyl-1 7-dihydrodipyrazolo [3, 4-b;4′,3′-e]pyridine (PAP1) for the first time.
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Efficient organic solar cells using copper(I) iodide (CuI) hole transport layers
Ying Peng,Ying Peng,Nir Yaacobi-Gross,Ajay Perumal,Hendrik Faber,George Vourlias,Panos Patsalas,Donal D. C. Bradley,Zhiqun He,Thomas D. Anthopoulos +9 more
TL;DR: In this paper, the authors reported the fabrication of high power conversion efficiency (PCE) polymer/fullerene bulk heterojunction (BHJ) photovoltaic cells using solution-processed Copper (I) Iodide (CuI) as hole transport layer (HTL).