Publications de Natalie Renuka Banerji

Free Charge Carrier Generation by Visible-Light-Absorbing Organic Spacers in Ruddlesden-Popper Layered Perovskites

Jacques-Edouard Moser, Kevin Sivula, Jun Ho Yum, Natalie Renuka Banerji, Aaron Tomas Terpstra, Simon Nussbaum

Incorporating organic semiconductor building blocks as spacer cations into layered hybrid perovskites provides an opportunity to develop new materials with novel optoelectronic properties, including nanoheterojunctions that afford spatial separation of ele ...

2024

Structural and Photophysical Templating of Conjugated Polyelectrolytes with Single-Stranded DNA

Ursula Röthlisberger, Polydefkis Diamantis, Natalie Renuka Banerji

A promising approach to influence and control the photophysical properties of conjugated polymers is directing their molecular conformation by templating. We explore here the templating effect of single-stranded DNA oligomers (ssDNAs) on cationic polythiop ...

AMER CHEMICAL SOC2020

Salt-induced thermochromism of a conjugated polyelectrolyte

Anne-Clémence Corminboeuf, Natalie Renuka Banerji, Laurent Alexis Clément Vannay, Yauhen Sheima

We report here the photophysical properties of a water-soluble conjugated polythiophene with cationic side-chains. When dissolved in aqueous buffer solution (PBS, phosphate buffered saline), there is ordering of the polymer chains due to the presence of th ...

Royal Soc Chemistry2017

Hybrid Heterojunctions of Solution-Processed Semiconducting 2D Transition Metal Dichalcogenides

Kevin Sivula, Nestor Guijarro Carratala, Xavier Adrian Jeanbourquin, Natalie Renuka Banerji, Xiaoyun Yu, Muhammad Aiman Bin Rahmanudin Hamdan

Exfoliated transition metal dichalcogenides (2D-TMDs) are attractive light-harvesting materials for large-area and inexpensive solar energy conversion given their ability to form highly tolerant heterojunctions. However, the preparation of large-area heter ...

Amer Chemical Soc2017

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, Alicia Solano, Jean-Pierre Wolf

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

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

The Role of Excitons and Free Charges in the Excited-State Dynamics of Solution-Processed Few-Layer MoS

Kevin Sivula, Natalie Renuka Banerji, Xiaoyun Yu

Solution-processed semiconducting transition metal dichalcogenides are emerging as promising two-dimensional materials for photovoltaic and optoelectronic applications. Here, we have used transient absorption spectroscopy to provide unambiguous evidence an ...

American Chemical Society2016

The Fate of Electron–Hole Pairs in Polymer:Fullerene Blends for Organic Photovoltaics

Jacques-Edouard Moser, Natalie Renuka Banerji, Jan Cornelius Brauer, Mariateresa Scarongella, Jelissa Risse, Natalie Stingelin, Martina Causa'

There has been long-standing debate on how free charges are generated in donor:acceptor blends that are used in organic solar cells, and which are generally comprised of a complex phase morphology, where intermixed and neat phases of the donor and acceptor ...

Nature Publishing Group2016

Importance of Unpaired Electrons in Organic Electronics

Mariateresa Scarongella, Natalie Renuka Banerji

The first observation that PBBTPD, a low bandgap, ambipolar conjugated donor-acceptor (DA) polymer based on benzobisthiadiazole (BBT), possesses an open-shell singlet ground state as well as a thermally accessible triplet state is described. Similarly, int ...

Wiley-Blackwell2015

Charge Transfer Dynamics from Organometal Halide Perovskite to Polymeric Hole Transport Materials in Hybrid Solar Cells

Mohammad Khaja Nazeeruddin, Natalie Renuka Banerji, Yonghui Lee, Jan Cornelius Brauer

Organometal halide perovskites have emerged as promising next-generation solar cell technologies presenting outstanding efficiencies. However, many questions concerning their working principles remain to be answered. Here, we present a detailed study of ho ...

Amer Chemical Soc2015