Recherche

Afficher tous les résultats pour

Accueil

Personne

Jingshan Luo

Cette personne a quitté l’EPFL

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (57)

Page 2 sur 3

Covalent Immobilization of a Molecular Catalyst on Cu2O Photocathodes for CO2 Reduction

Michael Graetzel, Peng Gao, Thomas Moehl, Jingshan Luo, Peng Gao, Matthew Thomas Mayer, Marcel Roland Schreier

Sunlight-driven CO2 reduction is a promising way to close the anthropogenic carbon cycle. Integrating light harvester and electrocatalyst functions into a single photo electrode, which converts solar energy and CO2 directly into reduced carbon species, is ...

American Chemical Society2016

Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells

Michael Graetzel, Ulf Anders Hagfeldt, Giovanni Dietler, David Lyndon Emsley, Wolfgang Richard Tress, Jingshan Luo, Dominik Józef Kubicki, Zaiwei Wang, Daniel Prochowicz, Jiangtao Zhou, Seckin Akin

All-inorganic perovskite films hold promise for improving the stability of perovskite solar cells (PSCs). However, the 3D alpha phase of narrow-bandgap inorganic perovskites is thermodynamically unstable at room temperature, limiting the development of hig ...

CELL PRESS2019

Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells

Jingshan Luo

Intensive studies on low-temperature deposited electron transport materials have been performed to improve the efficiency of n-i-p type planar perovskite solar cells to extend their application on plastic and multijunction device architectures. Here, a TiO ...

2017

Photoelectrocatalytic arene C–H amination

Xile Hu, Lei Zhang, Jingshan Luo, Dan Ren, Laurent Liardet

Photoelectrochemical cells are widely studied for solar energy conversion. However, they have rarely been used for the synthesis of high added-value organic molecules. Here we describe a strategy to use haematite, an abundant and robust photoanode, for non ...

2019

Ionic Liquid Control Crystal Growth to Enhance Planar Perovskite Solar Cells Efficiency

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Kurt Schenk, Jingshan Luo, Michael Saliba, Antonio Abate, Fabrizio Giordano, Juan-Pablo Correa-Baena, Konrad Domanski, Jiyoun Seo, Amita Ummadisingu

Ionic liquids can retard the perovskite crystallization with the aim to form compact films with larger and more uniformly distributed grain size. The ionic liquid driven crystallization is exploited to prepared a record planar perovskite solar cell with st ...

Wiley-VCH Verlag Berlin2016

Enhancing Efficiency of Perovskite Solar Cells via N-doped Graphene: Crystal Modification and Surface Passivation

Michael Graetzel, Ulf Anders Hagfeldt, Shaik Mohammed Zakeeruddin, Jingshan Luo, Michael Saliba, Antonio Abate, Juan-Pablo Correa-Baena, Jiyoun Seo, Amita Ummadisingu

Controlling the morphology and surface passivation in perovskite solar cells is paramount in obtaining optimal opto-electronic properties. This study incorporates N-doped graphene nanosheets in the perovskite layer, which simultaneously induces an improved ...

Wiley2016

Over 20% PCE perovskite solar cells with superior stability achieved by novel and low-cost hole-transporting materials

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

The exploration of alternative low-cost molecular hole-transporting materials (HTMs) for both highly efficient and stable perovskite solar cells (PSCs) is a relatively new research area. Two novel HTMs using the thiophene core were designed and synthesized ...

Elsevier Science Bv2017

A simple spiro-type hole transporting material for efficient perovskite solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Peng Gao, Kurt Schenk, Jingshan Luo, Peng Gao, Ines Raabe

We developed a cost-effective spiro-type 4,4 ',4 '',4 '''-(2H,2 ' H,4H,4 ' H-3,3 '-spiro-bi[thieno[3,4-b][1,4] dioxepine]-6,6 ',8,8 '-tetrayl) tetrakis(N,N-bis(4-methoxyphenyl)aniline) hole transporting material (PST1) for perovskite solar cells (PSCs) th ...

Royal Society of Chemistry2015

A dopant-free spirobi[cyclopenta[2,1-b:3,4-b ']dithiophene] based hole-transport material for efficient perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jingshan Luo, Marius Franckevicius

We present the design and synthesis of a promising hole transporting material (HTM) using the 4,40-spirobi[cyclopenta[2,1-b: 3,4-b']dithiophene] derivative (spiro-CPDT) as the core and triarylamines as terminal units. The implementation of the new HTM in C ...

Royal Society of Chemistry2015

High-Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on Amphiphile-Modified CH3NH3PbI3

Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Ulf Anders Hagfeldt, Peng Gao, Emad Oveisi, Jingshan Luo, Peng Gao, Dongqin Bi

A new aliphatic fluorinated amphiphilic additive is added to CH3NH3PbI3 perovskite to tune the morphology and enhance the environmental stability without sacrificing the performance of the devices. Judicious screening of the perovskite precursor solution r ...

Wiley-V C H Verlag Gmbh2016

Cu2O Nanowire Photocathodes for Efficient and Durable Solar Water Splitting

Michael Graetzel, Jingshan Luo, Matthew Thomas Mayer, Marcel Roland Schreier, Ludmilla Steier, Minkyu Son

Due to its abundance, scalability, and nontoxicity, Cu2O has attracted extensive attention toward solar energy conversion, and it is the best performing metal oxide material. Until now, the high efficiency devices are all planar in structure, and their pho ...

American Chemical Society2016

11% efficiency solid-state dye-sensitized solar cells with copper(II/I) hole transport materials

Ulf Anders Hagfeldt, Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Jingshan Luo, Joël Teuscher, Fabrizio Giordano, Norman Pellet, Yiming Cao, Yasemin Saygili, Amita Ummadisingu, Marina Freitag

Solid-state dye-sensitized solar cells currently suffer from issues such as inadequate nanopore filling, low conductivity and crystallization of hole-transport materials infiltrated in the mesoscopic TiO2 scaffolds, leading to low performances. Here we rep ...

Nature Publishing Group2017

Enabling full-scale grain boundary mitigation in polycrystalline perovskite solids

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Jingshan Luo, Felix Thomas Eickemeyer, Yuhang Liu, Lichen Zhao

There exists a considerable density of interaggregate grain boundaries (GBs) and intra-aggregate GBs in polycrystalline perovskites. Mitigation of intra- aggregate GBs is equally notable to that of interaggregate GBs as intra-aggregate GBs can also cause d ...

AMER ASSOC ADVANCEMENT SCIENCE2022

Scalable Boolean Methods in a Modern Synthesis Flow

Pierre-Emmanuel Julien Marc Gaillardon, Mathias Soeken, Jingshan Luo, Eleonora Testa, Luca Gaetano Amarù

With the continuous push to improve Quality of Results (QoR) in EDA, Boolean methods in logic synthesis have been recently drawing the attention of researchers. Boolean methods achieve better QoR than algebraic methods but require higher computational cost ...

2019

Multifunctional molecular modulators for perovskite solar cells with over 20% efficiency and high operational stability

Shaik Mohammed Zakeeruddin, David Lyndon Emsley, Jingshan Luo, Dominik Józef Kubicki, Jovana Milic, Norman Pellet, Xiong Li, Dongqin Bi, Pierre Mettraux

Perovskite solar cells present one of the most prominent photovoltaic technologies, yet their stability, scalability, and engineering at the molecular level remain challenging. We demonstrate a concept of multifunctional molecular modulation of scalable an ...

Nature Research2018

Enhanced Charge Collection with Passivation Layers in Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Peng Gao, Jingshan Luo, Kyung Taek Cho, Yonghui Lee, Jiyoun Seo, Minkyu Son

The Al2O3 passivation layer is beneficial for mesoporous TiO2-based perovskite solar cells when it is deposited selectively on the compact TiO2 surface. Such a passivation layer suppressing surface recombination can be formed by thermal decomposition of th ...

Wiley-V C H Verlag Gmbh2016

Regulated CO adsorption by the electrode with OH− repulsive property for enhancing C–C coupling

Michael Graetzel, Mingkui Wang, Jingshan Luo, Dan Ren, Jing Gao, Jialin Wang, Minhuan Wang

Electrochemical CO2 reduction driven by renewable electricity is one of the promising strategies to store sustainable energy as fuels. However, the selectivity of value-added multi-carbon products remains poor for further application of this process. Here, ...

2023

Unraveling the Reasons for Efficiency Loss in Perovskite Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Robin Humphry-Baker, Peng Gao, Jingshan Luo, Peng Gao, Yonghui Lee

The effect of the presence of unreacted PbI2 on the perovskite solar cells efficiency is reported. N,N-Dimethylformamide vapor treatment is introduced to study the influence of complete conversion to a power conversion efficiency of the device. It is disco ...

Wiley-Blackwell2015

Efficient photosynthesis of carbon monoxide from CO2 using perovskite photovoltaics

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jingshan Luo, Antonio Abate, Fabrizio Giordano, Matthew Thomas Mayer, Marcel Roland Schreier, Ludmilla Steier

Artificial photosynthesis, mimicking nature in its efforts to store solar energy, has received considerable attention from the research community. Most of these attempts target the production of H-2 as a fuel and our group recently demonstrated solar-to-hy ...

Nature Publishing Group2015

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