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Michael Saliba

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Related publications (55)

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

Michael Saliba, Sandy Sanchez Alonso

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

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

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

Michael Saliba, Antonio Abate, Feng Yang, 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

A molecularly engineered hole-transporting material for efficient perovskite solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Ulf Anders Hagfeldt, Rosario Scopelliti, Peng Gao, Michael Saliba, Antonio Abate, Juan-Pablo Correa-Baena, Sadig Aghazada

Soln.-processable perovskite solar cells have recently achieved certified power conversion efficiencies of over 20%, challenging the long-standing perception that high efficiencies must come at high costs. One major bottleneck for increasing the efficie ...

Nature Publishing Group2016

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

Ulf Anders Hagfeldt, Michael Saliba, Sandy Sanchez Alonso

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

Silolothiophene-linked triphenylamines as stable hole transporting materials for high efficiency perovskite solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Ulf Anders Hagfeldt, Shaik Mohammed Zakeeruddin, Peng Gao, Sanghyun Paek, Michael Saliba, Antonio Abate, Peng Gao, Juan-Pablo Correa-Baena, Fabrizio Giordano

In this work, we synthesized novel hole transporting materials (HTMs) and studied their impact on the stability of perovskite-based solar cells (PSCs). The steady-state maximum power output of devices in working condition was monitored to assess the stabil ...

Royal Society of Chemistry2015

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

Ulf Anders Hagfeldt, Michael Saliba, Sandy Sanchez Alonso

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

The rapid evolution of highly efficient perovskite solar cells

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Michael Saliba, Antonio Abate, Juan-Pablo Correa-Baena, Tor Jesper Jacobsson

Perovskite solar cells (PSCs) have attracted much attention because of their rapid rise to 22% efficiencies. Here, we review the rapid evolution of PSCs as they enter a new phase that could revolutionize the photovoltaic industry. In particular, we describ ...

Royal Society of Chemistry2017

Perovskite solar cell - electrochemical double layer capacitor interplay

Michael Graetzel, Ulf Anders Hagfeldt, Nikolaos Vlachopoulos, Michael Saliba, Juan-Pablo Correa-Baena

We demonstrate that by a proper design of a system comprising a perovskite solar cell (PSC) coupled to an electrochemical double-layer capacitor (EDLC), it is possible to simultaneously improve both the PSC and EDLC performance and outperform each single u ...

Elsevier2017

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

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

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

Promises and challenges of perovskite solar cells

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Michael Saliba, Antonio Abate, Juan-Pablo Correa-Baena

The efficiencies of perovskite solar cells have gone from single digits to a certified 22.1% in a few years' time. At this stage of their development, the key issues concern how to achieve further improvements in efficiency and long-term stability. We revi ...

American Association for the Advancement of Science2017

Stabilization of the Perovskite Phase of Formamidinium Lead Triiodide by Methylammonium, Cs, and/or Rb Doping

Ursula Röthlisberger, Michael Saliba, Olga Syzgantseva

In this work we perform a computational study comparing the influence of monovalent cation substitution by methylammonium (MA(+)), cesium (Cs+), and rubidium (Rb+) on the properties of formamidinium lead triiodide (FAPbI(3))based perovskites. The relative ...

2017

Room-Temperature Formation of Highly Crystalline Multication Perovskites for Efficient, Low-Cost Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Michael Saliba, Jiyoun Seo

Wiley-Blackwell2017

Functional hole transport materials for optoelectronic and/or electrochemical devices

Michael Graetzel, Mohammad Khaja Nazeeruddin, Michael Saliba

The present invention relates to a compound of formula (I) based on a structure comprising functionalized spirofluorene and fused aromatics or non-aromatic rings with at least one heteroatom, and used as hole transporting material in a optoelectronic and/o ...

2016

Highly Efficient and Stable Perovskite Solar Cells based on a Low-Cost Carbon Cloth

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Michael Saliba, Antonio Abate, Juan-Pablo Correa-Baena, Fabrizio Giordano, Konrad Domanski, Ludmilla Steier

Wiley-VCH Verlag Berlin2016