Publications by Inés Garcia Benito

Revealing Weak Dimensional Confinement Effects in Excitonic Silver/Bismuth Double Perovskites

Mohammad Khaja Nazeeruddin, Valentin Ianis Emmanuel Queloz, Giulia Grancini, Pascal Alexander Schouwink, Inés Garcia Benito, Albertus Adrian Sutanto

Lead-free perovskites are attracting increasing interest as nontoxic materials for advanced optoelectronic applications. Here, we report on a family of silver/bismuth bromide double perovskites with lower dimensionality obtained by incorporating phenethyla ...

AMER CHEMICAL SOC2022

Improving the Long-Term Stability of Doped Spiro-Type Hole-Transporting Materials in Planar Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Inés Garcia Benito

The improvement of the long-term stability of perovskite-based solar cells (PSCs) toward commercialization is closely linked to the development of cutting-edge charge-transporting materials. The progress on the design and the synthesis of new hole-transpor ...

WILEY-V C H VERLAG GMBH2021

Hole-Transporting Materials for Perovskite Solar Cells Employing an Anthradithiophene Core

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Inés Garcia Benito, Hiroyuki Kanda

A decade after the report of the first efficient perovskite-based solar cell, development of novel hole-transporting materials (HTMs) is still one of the main topics in this research field. Two of the main advance vectors of this topic lie in obtaining mat ...

AMER CHEMICAL SOC2021

Azatruxene-Based, Dumbbell-Shaped, Donor-pi-Bridge-Donor Hole-Transporting Materials for Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Tom Theodorus Antonius Lummen, Cristina Roldán Carmona, Inés Garcia Benito, Cansu Igci, Javier Urieta Mora

Three novel donor-pi-bridge-donor (D-pi-D) hole-transporting materials (HTMs) featuring triazatruxene electron-donating units bridged by different 3,4-ethylenedioxythiophene (EDOT) pi-conjugated linkers have been synthesized, characterized, and implemented ...

2020

Spatial Charge Separation as the Origin of Anomalous Stark Effect in Fluorous 2D Hybrid Perovskites

Jacques-Edouard Moser, Mohammad Khaja Nazeeruddin, Marine Eva Fedora Bouduban, Valentin Ianis Emmanuel Queloz, Giulia Grancini, Inés Garcia Benito, Alexander Fedorovskiy

2D hybrid perovskites (2DP) are versatile materials, whose electronic and optical properties can be tuned through the nature of the organic cations (even when those are seemingly electronically inert). Here, it is demonstrated that fluorination of the orga ...

2020

Optoelectronic and Energy Level Exploration of Bismuth and Antimony-Based Materials for Lead-Free Solar Cells

Mohammad Khaja Nazeeruddin, Tom Theodorus Antonius Lummen, Inés Garcia Benito, Hiroyuki Kanda, Ryosuke Nishikubo

Bismuth- and antimony-based materials, such as A(3)M(2)X(9) and AMSX(2) (A = cation, M = Bi, Sb, S = sulfur, X = halogen), are promising candidates as the counterpart to lead halide perovskite. However, the large number of different compositions and crysta ...

2020

Fluorination of Organic Spacer Impacts on the Structural and Optical Response of 2D Perovskites

Mohammad Khaja Nazeeruddin, Valentin Ianis Emmanuel Queloz, Tom Theodorus Antonius Lummen, Giulia Grancini, Inés Garcia Benito, Pietro Caprioglio

Low-dimensional hybrid perovskites have triggered significant research interest due to their intrinsically tunable optoelectronic properties and technologically relevant material stability. In particular, the role of the organic spacer on the inherent stru ...

2020

Tetrasubstituted Thieno[3,2-b]thiophenes as Hole-Transporting Materials for Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Tom Theodorus Antonius Lummen, Iwan Zimmermann, Inés Garcia Benito, Javier Urieta Mora

Three hole-transporting materials (HTMs) were prepared following a straightforward synthetic route by cross-linking arylamine-based ligands with a simple thieno[3,2-b]thiophene (TbT) core. The novel HTMs were fully characterized with standard techniques to ...

2020

Inkjet-Printed TiO2/Fullerene Composite Films for Planar Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Emad Oveisi, Aron Joel Huckaba, Inés Garcia Benito, Hiroyuki Kanda

Perovskite solar cells have garnered and held international research interest, due to ever-climbing power conversion efficiency values, now >25 %. Some high efficiency configurations utilize a compact TiO2 layer underneath a mesoporous TiO2 layer, both of ...

WILEY-V C H VERLAG GMBH2020

Dynamical evolution of the 2D/3D interface: a hidden driver behind perovskite solar cell instability

Mohammad Khaja Nazeeruddin, Valentin Ianis Emmanuel Queloz, Kyung Taek Cho, Sanghyun Paek, Nikita Drigo, Giulia Grancini, Pascal Alexander Schouwink, Inés Garcia Benito, Albertus Adrian Sutanto

Engineering two-/three-dimensional (2D/3D) perovskite solar cells is nowadays a popular strategy for efficient and stable devices. However, the exact function of the 2D/3D interface in controlling the long-term device behavior is still obscure. Here, we re ...

Royal Society of Chemistry2020

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Giulia Grancini, Inés Garcia Benito, Javier Urieta Mora

A flexible, saddle-like, π-conjugated skeleton composed of four fused thiophene rings forming a cyclooctatetrathiophene (CoTh) with four triphenylamines (CoTh-TTPA) is presented as a hole-transporting material (HTM) for perovskite solar cells. The new HTM ...

Royal Society of Chemistry2019

Pushing the limit of Cs incorporation into FAPbBr3 perovskite to enhance solar cells performances

Mohammad Khaja Nazeeruddin, Valentin Ianis Emmanuel Queloz, Berend Smit, Giulia Grancini, Olga Syzgantseva, Inés Garcia Benito, Albertus Adrian Sutanto

Cation compositional engineering has revealed a powerful design tool to manipulate the perovskite structural and optoelectronic characteristics with a tremendous impact on device performances. Tuning the bandgap by cation and anion compositional mixing, fo ...

2018

Fashioning Fluorous Organic Spacers for Tunable and Stable Layered Hybrid Perovskites

Mohammad Khaja Nazeeruddin, Andreas Stephan Lesch, Valentin Ianis Emmanuel Queloz, Iwan Zimmermann, Giulia Grancini, Inés Garcia Benito

2018

Heteroatom Effect on Star-Shaped Hole-Transporting Materials for Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Inés Garcia Benito, Javier Urieta Mora

2018

Charge transporting material for optoelectronic and/or photoelectrochemical devices

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Gratia, Iwan Zimmermann, Inés Garcia Benito

The present invention relates to an optoelectronic and/or photoelectrochemical device comprising at least one organic-inorganic perovskite as sensitizer and at least one compound of formula (I) comprising one benzotrithiophene core Q, wherein each thiophen ...

2017

Isomerism effect on the photovoltaic properties of benzotrithiophene-based hole-transporting materials

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Inés Garcia Benito

Engineering of inorg.-org. lead halide perovskites for photovoltaic applications has experienced significant advances in recent years. However, the use of the relatively expensive spiro-OMeTAD as a hole-transporting material (HTM) poses a challenge due ...

Royal Society of Chemistry2017

Benzotrithiophene-Based Hole-Transporting Materials for 18.2% Perovskite Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Gratia, Sadig Aghazada, Cristina Roldán Carmona, Iwan Zimmermann, Inés Garcia Benito

New star-shaped benzotrithiophene (BTT)-based hole-transporting materials (HTM) BTT-1, BTT-2 and BTT-3 have been obtained through a facile synthetic route by crosslinking triarylamine-based donor groups with a benzotrithiophene (BTT) core. The BTT HTMs wer ...

Wiley-VCH Verlag GmbH2016