Cristina Roldán Carmona

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Crystal Orientation Drives the Interface Physics at Two/Three-Dimensional Hybrid Perovskites

Jacques-Edouard Moser, Mohammad Khaja Nazeeruddin, Sanghyun Paek, Giulia Grancini, Kyung Taek Cho, Cristina Roldán Carmona, Valentin Ianis Emmanuel Queloz, Marine Eva Fedora Bouduban

Combining halide perovskites with tailored dimensionality into two/three-dimensional (2D/3D) systems has revealed a powerful strategy to boost the performances of perovskite photovoltaics (PVs). Despite recent advances, a clear understanding of the intimat ...

2019

Application of a Tetra-TPD-Type Hole-Transporting Material Fused by a Troger's Base Core in Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Zhaofu Fei, Cristina Roldán Carmona, Rui Xia, Maria Cristina Momblona Rincón

One of the obstacles to the commercialization of perovskite solar cells (PSCs) is the high price and morphological instability of the most common hole-transporting material (HTM) Spiro-OMeTAD. Herein, a novel HTM, termed V1160, based on four N,N '-bis(3-me ...

WILEY-V C H VERLAG GMBH2019

Copper sulfide nanoparticles as hole-transporting-material in a fully-inorganic blocking layers n-i-p perovskite solar cells: Application and working insights

Mohammad Khaja Nazeeruddin, Giulia Grancini, Cristina Roldán Carmona, Valentin Ianis Emmanuel Queloz

One of the challenges in the field of perovskite solar cells (PSC) is the development of inorganic hole-transporting-materials (HTM) suitable for solution-processed deposition, in order to have cheaper, more stable and scalable devices. Herein, we report t ...

2019

Retarding Thermal Degradation in Hybrid Perovskites by Ionic Liquid Additives

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Zhaofu Fei, Mounir Driss Mensi, Felix Daniel Bobbink, Cristina Roldán Carmona, Zhangjun Huang, Marius Franckevicius, Nikita Drigo, Rui Xia

Recent years have witnessed considerable progress in the development of solar cells based on lead halide perovskite materials. However, their intrinsic instability remains a limitation. In this context, the interplay between the thermal degradation and the ...

2019

Inexpensive Hole-Transporting Materials Derived from Troger's Base Afford Efficient and Stable Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Zhaofu Fei, Cristina Roldán Carmona, Rui Xia, Maria Cristina Momblona Rincón

The synthesis of three enamine hole-transporting materials (HTMs) based on Troger's base scaffold are reported. These compounds are obtained in a three-step facile synthesis from commercially available materials without the need of expensive catalysts, ine ...

Wiley-VCH Verlag GmbH2019

Introduction of a Bifunctional Cation Affords Perovskite Solar Cells Stable at Temperatures Exceeding 80 degrees C

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Cristina Roldán Carmona, Filippo de Angelis, Erfan Shirzadi

Perovskite solar cells (PSCs) with high efficiencies have been reported in recent years. Consequently, the main obstacle that hinders their commercialization is their poor thermal stability. Here, we describe the introduction of an A-site cation (2-choloro ...

AMER CHEMICAL SOC2019