Publications de Jiahuan Zhang | EPFL Graph Search

Intermediate phase engineering of halide perovskites for photovoltaics

Ulf Anders Hagfeldt, Zaiwei Wang, Jiahuan Zhang, Wanchun Xiang

Metal halide perovskites serving as one of the most promising photovoltaic materials are gaining considerable attention worldwide. For achieving high performance as well as long-term stability of the perovskite solar cells (PSCs), a good quality of perovsk ...

CELL PRESS2022

Formation and Stabilization of Inorganic Halide Perovskites for Photovoltaics

Ulf Anders Hagfeldt, Zaiwei Wang, Jiahuan Zhang, Wanchun Xiang

In the last decade, halide perovskites have emerged as new semiconductors that revolutionize the photovoltaic field. Among this family of materials, all-inorganic halide perovskites are becoming a research paradigm because of their outstanding photophysica ...

ELSEVIER2021

Intermediate Phase Enhances Inorganic Perovskite and Metal Oxide Interface for Efficient Photovoltaics

Michael Graetzel, David Lyndon Emsley, Wolfgang Richard Tress, Ulf Anders Hagfeldt, Dominik Józef Kubicki, Yuhang Liu, Jiahuan Zhang, Zaiwei Wang, Aditya Mishra, Claudia Esther Avalos

Interfacial modification is crucial to fully develop the potential of semiconductor devices, including the revolutionary halide perovskite-based optoelectronics, such as photovoltaics, light-emitting diodes, and photodetectors. The all-inorganic halide per ...

CELL PRESS2020

Stabilization of Highly Efficient and Stable Phase-Pure FAPbI(3)Perovskite Solar Cells by Molecularly Tailored 2D-Overlayers

Michael Graetzel, Shaik Mohammed Zakeeruddin, Felix Thomas Eickemeyer, Ulf Anders Hagfeldt, Mohammad Ibrahim Dar, Hong Zhang, Yuhang Liu, Jiyoun Seo, Jiahuan Zhang, Hongwei Zhu

As a result of their attractive optoelectronic properties, metal halide APbI(3)perovskites employing formamidinium (FA(+)) as the A cation are the focus of research. The superior chemical and thermal stability of FA(+)cations makes alpha-FAPbI(3)more suita ...

Wiley-VCH Verlag GmbH2020

Ba-induced phase segregation and band gap reduction in mixed-halide inorganic perovskite solar cells

Michael Graetzel, David Lyndon Emsley, Wolfgang Richard Tress, Ulf Anders Hagfeldt, Jingshan Luo, Dominik Józef Kubicki, Zaiwei Wang, Jiahuan Zhang, Albert Hofstetter, Wanchun Xiang

All-inorganic metal halide perovskites are showing promising development towards efficient long-term stable materials and solar cells. Element doping, especially on the lead site, has been proved to be a useful strategy to obtain the desired film quality a ...

Nature Research2019

Electrochemically polymerized poly (3, 4-phenylenedioxythiophene) as efficient and transparent counter electrode for dye sensitized solar cells

Nikolaos Vlachopoulos, Ulf Anders Hagfeldt, Lin Yang, Jiahuan Zhang, Yan Hao

A new conducting polymer poly (3, 4-phenylenedioxythiophene) is synthesized by the electrochemical polymerization technique with different solvents. We find that solvents used in electrochemical polymerization play important roles for the catalytic activit ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Agonists and Antagonists of Protease-Activated Receptor 2 Discovered within a DNA-Encoded Chemical Library Using Mutational Stabilization of the Target

Jiahuan Zhang, Ye Zhang, Sevan Mleh Habeshian

2018

Design rules for minimizing voltage losses in high-efficiency organic solar cells

Wolfgang Richard Tress, Jiahuan Zhang

2018

Enhanced longevity and metabolism by brown adipose tissue with disruption of the regulator of G protein signaling 14

Johan Auwerx, Jiahuan Zhang, Elena Katsyuba

2018

New covalently bonded dye/hole transporting material for better charge transfer in solid-state dye-sensitized solar cells

Nikolaos Vlachopoulos, Jiahuan Zhang

2018