Publications de Chunyang Zhang

CNT-based bifacial perovskite solar cells towards highly efficient 4-terminal tandem photovoltaics

Michael Graetzel, Shaik Mohammed Zakeeruddin, Fan Fu, Hongwei Zhu, Chunyang Zhang

Carbon-based perovskite solar cells (C-PSCs) are recognized as low-cost stable photovoltaics. However, currently most highly efficient C-PSCs are optically opaque, which means that they can only utilize direct illumination but cannot efficiently utilize th ...

2022

A Nearly Zero-Strain Li-Rich Rock-Salt Oxide with Multielectron Redox Reactions as a Cathode for Li-Ion Batteries

Xiao Liu, Corsin Battaglia, Yong Yang, Chunyang Zhang, Yining Li

Li-rich oxide cathodes are drawing increasing attention as next-generation cathode materials for the development of high-energy-density Li-ion batteries due to their strikingly high capacities. However, transition-metal migration, irreversible structural p ...

AMER CHEMICAL SOC2022

Carrier Transport Layer-Free Perovskite Solar Cells

Liang Wang, Hong Zhang, Chunyang Zhang

Power conversion efficiencies (PCEs) of up to 25.5 % have been reported for perovskite solar cells (PSCs). Thus, they have shown great potential for commercial applications. Therefore, simplifying technological process and reducing production costs have be ...

WILEY-V C H VERLAG GMBH2021

Tailoring the redox-active transition metal content to enhance cycling stability in cation-disordered rock-salt oxides

Corsin Battaglia, Yong Yang, Chunyang Zhang, Yining Li

Lithium-excess cation-disordered rock-salt oxides (DRXs) are investigated intensively as cathode materials for future lithium-ion batteries combining cationic and anionic redox reactions. However, the lattice oxygen redox can cause severe oxygen release re ...

ELSEVIER2021

Guanidinium-Assisted Surface Matrix Engineering for Highly Efficient Perovskite Quantum Dot Photovoltaics

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jiabao Yang, Xiaoyu Zhang, Xufeng Ling, Chunyang Zhang, Wanli Ma

Metal halide perovskite quantum dots (Pe-QDs) are of great interest in new-generation photovoltaics (PVs). However, it remains challenging in the construction of conductive and intact Pe-QD films to maximize their functionality. Herein, a ligand-assisted s ...

Wiley2020

Mn4+-Substituted Li-Rich Li1.2Mn0.43+Mnx4+Ti0.4-xO2 Materials with High Energy Density

Yong Yang, Chunyang Zhang

In this work, Li-rich Li1.2Mn0.43+Mnx4+Ti0.4-xO2 (LMMxTO, 0

2020

Efficient stable graphene-based perovskite solar cells with high flexibility in device assembling via modular architecture design

Michael Graetzel, Shaik Mohammed Zakeeruddin, Hong Zhang, Chunyang Zhang

Carbon-based perovskite solar cells (C-PSCs) are emerging as low-cost stable photovoltaics. However, their power conversion efficiency (PCE) still lags behind that of devices based on Au or Ag as the current collector. Here, we introduced an innovative mod ...

2019

Stable Quasi-Solid-State Dye-Sensitized Solar Cells Using Novel Low Molecular Mass Organogelators and Room-Temperature Molten Salts

Michael Graetzel, Mohammad Khaja Nazeeruddin, Chunyang Zhang, Yong Ding, Bing Zhang, Li Tao

Stable quasi-solid-state dye-sensitized solar cells (DSCs) were fabricated by using room-temperature molten salts (1-methyl-3-hexyl-imidazolium iodide), and a series of diamine derivatives with different lengths of alkyl chain as low molecular mass organog ...

American Chemical Society2014

Gel electrolyte materials formed from a series of novel low molecular mass organogelators for stable quasi-solid-state dye-sensitized solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Xu Pan, Chunyang Zhang, Yong Ding, Lu Wang, Li Tao

Electrolyte materials are the key components in dye-sensitized solar cells (DSCs) and are very crucial to the performance and long-term stability of DSCs. We developed a series of diamide derivatives as novel low molecular mass organogelators (LMOGs) for D ...

Royal Society of Chemistry2014