Selenium (Se) nanowires have generated much interest both for the fundamental understanding of crystal formation and growth and for technological applications in optoelectronics, imaging, piezoelectricity, catalysis, and energy harvesting and storage. Seve ...

2018

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Highly photoluminescent hybrid lead halide perovskite nanoparticles have recently attracted a wide interest in the context of high-stake applications, such as light emitting diodes (LEDs), light emitting transistors and lasers. In addition, they constitute ...

Royal Soc Chemistry2017

Dye-sensitized solar cells for efficient power generation under ambient lighting

Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Paul Liska, Fabrizio Giordano, Ulf Anders Hagfeldt, Joël Teuscher, Xiaoyu Zhang, Yasemin Saygili, Marina Freitag

Solar cells that operate efficiently under indoor lighting are of great practical interest as they can serve as electric power sources for portable electronics and devices for wireless sensor networks or the Internet of Things. Here, we demonstrate a dye-s ...

Nature Publishing Group2017

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Unravelling the nature of the interactions between photogenerated charge carriers in solar energy conversion devices is key to enhance performance. In this perspective, we discuss electroabsorption spectroscopy (EAS), as the spectral bandshape of the elect ...

Schweizerische Chemische Gesellschaft2017

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

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

Charge separation and carrier dynamics in donor-acceptor heterojunction photovoltaic systems

Majed Chergui, Ursula Röthlisberger, Jacques-Edouard Moser, Ariadni Boziki, Natalie Renuka Banerji, Joël Teuscher, Jan Cornelius Brauer, Jean-Pierre Wolf, Alicia Solano

Electron transfer and subsequent charge separation across donor-acceptor heterojunctions remain the most important areas of study in the field of third-generation photovoltaics. In this context, it is particularly important to unravel the dynamics of indiv ...

2017

Perovskite photovoltaics: Slow recombination unveiled

Jacques-Edouard Moser

One of the most salient features of hybrid lead halide perovskites is the extended lifetime of their photogenerated charge carriers. This property has now been shown experimentally to originate from a slow, thermally activated recombination process. ...

Nature Publishing Group2017

Charge migration and charge transfer in molecular systems

Majed Chergui, Ursula Röthlisberger, Jacques-Edouard Moser, Andrea Cannizzo, Natalie Renuka Banerji, Joël Teuscher, Christopher Alexander Arrell, Pablo Lopez Tarifa, Elisa Liberatore

The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of res ...

2017

Dynamics of Photocarrier Separation in MAPbI3 Perovskite Multigrain Films under a Quasistatic Electric Field

Jacques-Edouard Moser, Joël Teuscher, Arun Aby Paraecattil, Jelissa Risse, Vytenis Pranculis

Applying time-resolved electroabsorption spectroscopy for the first time to methylammonium lead triiodide perovskite (MAPbI3) thin films under reverse bias, we monitored optically the ultrafast evolution of the local counter-electric field produced by the ...

American Chemical Society2016

Comprehensive control of voltage loss enables 11.7% efficient solid-state dye-sensitized solar cells

Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Yuhang Liu, Ladislav Kavan, Jingshan Luo, Chenyi Yi, Yiming Cao, Yasemin Saygili, Weiwei Zhang, Yinghui Wu

2018

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Royal Soc Chemistry2017

Energy and Charge Transfer Cascade in Methylammonium Lead Bromide Perovskite Nanoparticle Aggregates

Jacques-Edouard Moser

Joël Teuscher

Marine Eva Fedora Bouduban

Andrés Burgos Caminal

Rachele Ossola

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Schweizerische Chemische Gesellschaft2017

Unveiling the Nature of Charge Carrier Interactions by Electroabsorption Spectroscopy: An Illustration with Lead-Halide Perovskites

Jacques-Edouard Moser

Joël Teuscher

Marine Eva Fedora Bouduban

Andrés Burgos Caminal