Publication
New Horizons for Perovskite Solar Cells Employing DNA-CTMA as the Hole-Transporting Material
Publications associées (52)
Photovoltaic devices containing cyclobutane-based hole transport materials
Mohammad Khaja Nazeeruddin, Yi Zhang
The teachings herein relate to hole transport compounds containing cyclobutyl moieties that can be made into organic hole conductors and hole transport materials. Furthermore, optoelectronic and photoelectrochemical devices, in particular photovoltaic devi ...
2023Molecular Engineering of Fluorene-Based Hole-Transporting Materials for Efficient Perovskite Solar Cells
Mohammad Khaja Nazeeruddin, Hiroyuki Kanda, Albertus Adrian Sutanto, Nadja Isabelle Desiree Klipfel
New Spiro-OMeTAD analogues and the simpler "half" structures with the terminated methoxyphenyl and/or carbazolyl chromophores are successfully synthesized under Hartwig-Buchwald amination conditions using commercially available starting materials. New fluo ...
WILEY-V C H VERLAG GMBH2022Contact Design for Silicon Heterojunction Solar Cells
Today more than ever the world needs clean energy sources and thus a fast deployment and scaling up of the photovoltaic industry. In this context improving solar cell efficiency plays a major role. In order to achieve the maximum single junction efficiency ...
EPFL2022Temperature‐dependent performance of silicon heterojunction solar cells with transition‐metal‐oxide‐based selective contacts
Mathieu Gérard Boccard, Julie Amandine Dreon
The temperature coefficient (TC) is an essential figure of merit to accurately evaluate solar cell performance at various operating temperatures and hence enabling the comparison between different cell technologies. Recently, solar cells that use passivati ...
2021Dopant‐Free Hole Transport Materials Afford Efficient and Stable Inorganic Perovskite Solar Cells and Modules
Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Hiroyuki Kanda, Yong Ding, Bin Ding, Kasparas Rakstys, Olga Syzgantseva, Cansu Igci, Xianfu Zhang, Cheng Liu
The emerging CsPbI3 perovskites are highly efficient and thermally stable materials for wide-band gap perovskite solar cells (PSCs), but the doped hole transport materials (HTMs) accelerate the undesirable phase transition of CsPbI3 in ambient. Herein, a d ...
2021Optimization of front SiNx/ITO stacks for high-efficiency two-side contacted c-Si solar cells with co-annealed front and rear passivating contacts
Christophe Ballif, Franz-Josef Haug, Xavier Niquille, Andrea Ingenito, Sylvain Nicolay, Frank Meyer
In this contribution, we present an electron selective passivating contact metallised with a low temperature process to target front side applications in crystalline silicon (c-Si) solar cells. In addition to an interfacial silicon oxide (SiOx) and an in-s ...
2020Molecular materials as interfacial layers and additives in perovskite solar cells
Solar cells based on organo-metal halide perovskites have gained unprecedented research interest over the last few years due to their low-cost solution processability, high power conversion efficiency, which has recently reached a certified value of 25.2%, ...
2020Hole transporting materials for perovskite solar cells and a simple approach for determining the performance limiting factors
Mohammad Khaja Nazeeruddin, Iwan Zimmermann
The synthesis and characterization of three novel HTMs with different highest occupied molecular orbital (HOMO) energy levels and their performances in MAPbI(3)-based devices in comparison with Spiro-OMeTAD is reported. Without systematic optimization, the ...
2020A hysteresis-free perovskite transistor with exceptional stability through molecular cross-linking and amine-based surface passivation
Mohammad Khaja Nazeeruddin, Peng Gao, Hobeom Kim
Organo-metal halide perovskite field-effect transistors present serious challenges in terms of device stability and hysteresis in the current-voltage characteristics. Migration of ions located at grain boundaries and surface defects in the perovskite film ...
ROYAL SOC CHEMISTRY2020Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework
Passivation, conductivity, and selectivity are often acknowledged as the three requirements for optimal contacts to photovoltaic solar cells. Although there are generally accepted definitions and metrics for passivation and conductivity, a common understan ...
2019