Xiong Li

Cette personne a quitté l’EPFL

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Publications associées (27)

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A novel one-step synthesized and dopant-free hole transport material for efficient and stable perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jingshan Luo, Chenyi Yi, Xiong Li, Dongqin Bi, Fei Zhang

A hole transport material ST1 was synthesized by a one-step Heck reaction. Compared to Spiro-OMeTAD, perovskite solar cells with ST1 exhibit a remarkable overall power conversion efficiency of 15.4% without the use of any dopants and additives, which is co ...

Royal Society of Chemistry2016

Polymer-templated nucleation and crystal growth of perovskite films for solar cells with efficiency greater than 21%

Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Jingshan Luo, Chenyi Yi, Dongqin Bi, Jean-David Décoppet, Xiong Li, Fei Zhang

The past several years have witnessed the rapid emergence of a class of solar cells based on mixed organic-inorganic halide perovskites. Today's state-of-the-art perovskite solar cells (PSCs) employ various methods to enhance nucleation and improve the smo ...

Nature Publishing Group2016

Isomer-Pure Bis-PCBM-Assisted Crystal Engineering of Perovskite Solar Cells Showing Excellent Efficiency and Stability

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jingshan Luo, Chenyi Yi, Norman Pellet, Dongqin Bi, Xiong Li, Fei Zhang

A fullerene derivative (alpha-bis-PCBM) is purified from an as-produced bis-phenyl-C-61-butyric acid methyl ester (bis-[60]PCBM) isomer mixture by preparative peak-recycling, high-performance liquid chromatography, and is employed as a templating agent for ...

Wiley-Blackwell2017

Dopant-free star-shaped hole-transport materials for efficient and stable perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Chenyi Yi, Xiong Li, Dongqin Bi, Fei Zhang

Two star-shaped TPA-based small-molecule materials (Z1012 and Z1013) were designed and synthesized in this paper. These molecules show high hole mobility and suitable energy levels for CH3NH3PbI3-based perovskite solar cells. Photovoltaic cells based on th ...

Elsevier2017

Template enhanced organic inorganic perovskite heterojunction photovoltaic device

Michael Graetzel, Shaik Mohammed Zakeeruddin, Xiong Li

The present invention relates to a solid state photovoltaic device comprising a absorbing layer containing a light harvester and at least one templating agent, said absorbing layer being prepared in a single step. ...

2017

Perovskite Photovoltaics with Outstanding Performance Produced by Chemical Conversion of Bilayer Mesostructured Lead Halide/TiO2 Films

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jingshan Luo, Chenyi Yi, Xiong Li

Wiley-Blackwell2016

Air Processed Inkjet Infiltrated Carbon Based Printed Perovskite Solar Cells with High Stability and Reproducibility

Michael Graetzel, Shaik Mohammed Zakeeruddin, Mohammad Ibrahim Dar, Xiong Li

Carbon based perovskite solar cells are fabricated for the first time in a room temperature environment by employing inkjet infiltration of perovskite precursor ink. The fabricated perovskite solar cells exhibit impressive performance reproducibility with ...

Wiley2017