Publications de Michael Saliba

High-Stable Lead-Free Solar Cells Achieved by Surface Reconstruction of Quasi-2D Tin-Based Perovskites

Feng Yang, Antonio Abate, Michael Saliba, Meng Li, Zhe Li, Xingyu Gao, Rui Zhu, Guixiang Li

Tin halide perovskites are an appealing alternative to lead perovskites. However, owing to the lower redox potential of Sn(II)/Sn(IV), particularly under the presence of oxygen and water, the accumulation of Sn(IV) at the surface layer will negatively impa ...

Wiley-V C H Verlag Gmbh2023

Molecular Electronic Study of Spiro-[cyclopenta[1,2-b:5,4-b ']dithiophene-4,9 '-fluorene] Derivatives: Route to Decent Hole-Transporting Materials

Mohammad Khaja Nazeeruddin, Peng Gao, Michael Saliba, Wei Li

Spiro-type molecules have been extensively explored as hole-transporting materials (HTMs) in perovskite solar cells (PSCs). However, a closer look at the rule of design of such molecules is missing, and a combined experimental and theoretical study is need ...

AMER CHEMICAL SOC2022

Accounting for Optical Generation in the Quasi-Neutral Regions of Perovskite Solar Cells

Jean-Michel Sallese, Farzan Jazaeri, Michael Saliba, Parnian Ferdowsi

Predicting the performance of solar cells though analytical models is important for the theory-guided optimization of these devices. Earlier models neglect the impact of the optical generation in the quasi-neutral regions of a perovskite solar cell. Here, ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Consensus statement for stability assessment and reporting for perovskite photovoltaics based on ISOS procedures

Michael Graetzel, Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Henry Snaith, Konrad Domanski, Wolfgang Richard Tress, Antonio Abate, Michael Saliba, Monica Marcela Lira Cantu, Haibing Xie, Kai Zhu

Improving the long-term stability of perovskite solar cells is critical to the deployment of this technology. Despite the great emphasis laid on stability-related investigations, publications lack consistency in experimental procedures and parameters repor ...

NATURE PUBLISHING GROUP2020

Flash Infrared Pulse Time Control of Perovskite Crystal Nucleation and Growth from Solution

Sandy Sanchez Alonso, Michael Saliba

Flash infrared annealing (FIRA) of perovskite films enables manufacturing compact perovskite layers for photovoltaic devices. Here, a variable infrared pulse length to control crystal nucleation and growth in perovskite films is investigated. By varying th ...

AMER CHEMICAL SOC2020

Highly efficient and rapid manufactured perovskite solar cells via Flash InfraRed Annealing

Ulf Anders Hagfeldt, Sandy Sanchez Alonso, Michael Saliba

This work unveils how to quickly manufacture highly efficient and stable perovskite solar cells (PSCs) using the Flash InfraRed Annealing (FIRA) method. With FIRA, the titanium oxide mesoscopic layer can be synthesized in only 10 min, and the synthesis of ...

2020

A partially-planarised hole-transporting quart-p-phenylene for perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Wolfgang Richard Tress, Michael Saliba

Herein, we describe the synthesis of a hole transporting material based on a partially planarised quart-p-phenylene core incorporating tetraketal and diphenylamine substituents that show optimal energy levels and solubility for perovskite solar cell applic ...

Royal Society of Chemistry2019

Synergistic Crystal and Interface Engineering for Efficient and Stable Perovskite Photovoltaics

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Michael Saliba, Philippe Jürgen Holzhey, Pankaj Kumar Yadav, Mohammad Mahdi Tavakoli

The presence of bulk and surface defects in perovskite light harvesting materials limits the overall efficiency of perovskite solar cells (PSCs). The formation of such defects is suppressed by adding methylammonium chloride (MACl) as a crystallization aid ...

WILEY-V C H VERLAG GMBH2019

Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells

Mohammad Khaja Nazeeruddin, Kyung Taek Cho, Sanghyun Paek, Michael Saliba

The search for new classes of hole transporting materials (HTMs) is a very important task on the way towards commercialization of perovskite solar cells (PSCs). In this work, the synthesis and performance in PSCs of new enamine-based HTMs are presented. Th ...

Royal Society of Chemistry2019

Crystal Orientation and Grain Size: Do They Determine Optoelectronic Properties of MAPbI(3) Perovskite?

Ulf Anders Hagfeldt, Sandy Sanchez Alonso, Michael Saliba

Growing large, oriented grains of perovskite often leads to efficient devices, but it is unclear if properties of the grains are responsible for the efficiency. Domains observed in SEM are commonly misidentified with crystallographic grains, but SEM images ...

2019

Flash infrared annealing as a cost-effective and low environmental impact processing method for planar perovskite solar cells

Sandy Sanchez Alonso, Michael Saliba

For successful commercialization of perovskite solar cells, straightforward solutions in terms of environmental impact and economic feasibility are still required. Flash Infrared Annealing (FIRA) is a rapid method to fabricate perovskite solar cells with e ...

2019

A chain is as strong as its weakest link - Stability study of MAPbI(3) under light and temperature

Michael Graetzel, Ulf Anders Hagfeldt, Amita Ummadisingu, Michael Saliba, Philippe Jürgen Holzhey, Pankaj Kumar Yadav, Silver Hamill Turren Cruz

The stability of perovskite solar cells is a key issue for industrial development. One reason for this is the volatile organic methylammonium (MA) cation, which is prone to degas under elevated temperatures from the perovskite. At the same time, small amou ...

2019

Dopant-Free Hole-Transporting Polymers for Efficient and Stable Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Wolfgang Richard Tress, Michael Saliba

A series of novel polymers (P1P6) derived from the combination of different units (including thiophene, triarylamine, and spirobifluorene) were successfully synthesized, completely characterized, and used as hole-transporting materials (HTMs) for perovskit ...

American Chemical Society2019

PbZrTiO3 ferroelectric oxide as an electron extraction material for stable halide perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Michael Saliba, Silver Hamill Turren Cruz, Hui-Seon Kim, Zaiwei Wang, Monica Marcela Lira Cantu, Anna Morales Melgares, Haibing Xie

State-of-the-art halide perovskite solar cells employ semiconductor oxides as electron transportmaterials. Defects in these oxides, such as oxygen vacancies (Ovac), act as recombination centres and, in air and UV light, reduce the stability of the solar ce ...

2019

Enhanced charge carrier mobility and lifetime suppress hysteresis and improve efficiency in planar perovskite solar cells

Matthew Thomas Mayer, Wolfgang Richard Tress, Juan-Pablo Correa-Baena, Antonio Abate, Michael Saliba, Silver Hamill Turren Cruz

2018

One-step mechanochemical incorporation of an insoluble cesium additive for high performance planar heterojunction solar cells

Shaik Mohammed Zakeeruddin, Dominik Józef Kubicki, David Lyndon Emsley, Michael Saliba, Pankaj Kumar Yadav, Daniel Prochowicz, Mohammad Mahdi Tavakoli

Elsevier2018

Michael Saliba

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High-Stable Lead-Free Solar Cells Achieved by Surface Reconstruction of Quasi-2D Tin-Based Perovskites

Molecular Electronic Study of Spiro-[cyclopenta[1,2-b:5,4-b ']dithiophene-4,9 '-fluorene] Derivatives: Route to Decent Hole-Transporting Materials

Accounting for Optical Generation in the Quasi-Neutral Regions of Perovskite Solar Cells

Consensus statement for stability assessment and reporting for perovskite photovoltaics based on ISOS procedures

Flash Infrared Pulse Time Control of Perovskite Crystal Nucleation and Growth from Solution

Highly efficient and rapid manufactured perovskite solar cells via Flash InfraRed Annealing

A partially-planarised hole-transporting quart-p-phenylene for perovskite solar cells

Synergistic Crystal and Interface Engineering for Efficient and Stable Perovskite Photovoltaics

Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells

Crystal Orientation and Grain Size: Do They Determine Optoelectronic Properties of MAPbI(3) Perovskite?

Flash infrared annealing as a cost-effective and low environmental impact processing method for planar perovskite solar cells

A chain is as strong as its weakest link - Stability study of MAPbI(3) under light and temperature

Dopant-Free Hole-Transporting Polymers for Efficient and Stable Perovskite Solar Cells

PbZrTiO3 ferroelectric oxide as an electron extraction material for stable halide perovskite solar cells

Carbon Nanoparticles in High-Performance Perovskite Solar Cells

Effect of Cation Composition on the Mechanical Stability of Perovskite Solar Cells

Effect of Rubidium for Thermal Stability of Triple-cation Perovskite Solar Cells

Elucidation of Charge Recombination and Accumulation Mechanism in Mixed Perovskite Solar Cells

Enhanced charge carrier mobility and lifetime suppress hysteresis and improve efficiency in planar perovskite solar cells

One-step mechanochemical incorporation of an insoluble cesium additive for high performance planar heterojunction solar cells