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Inorganic cesium lead iodide (CsPbI$_3$) perovskite solar cells (PSCs) have attracted enormous attention due to their excellent thermal stability and optical bandgap (~1.73 eV), well-suited for tandem device applications. However, achieving…

Drift-diffusion model is an indispensable modeling tool to understand the carrier dynamics (transport, recombination, and collection) and simulate practical-efficiency of solar cells (SCs) through taking into account various carrier…

Mesoscale and Nanoscale Physics · Physics 2017-04-20 Xingang Ren , Zishuai Wang , Wei E. I. Sha , Wallace C. H. Choy

With the rapid evolution of lead halide perovskite solar cells, there are considerable evidences that the mobile ions strongly impact their properties. However, except the activation energy, the other properties of ionic migration are…

Materials Science · Physics 2018-06-21 Ningbo Yi , Gang Li , Yuhan Wang , Shuai Wang , Kaiyang Wang , Qinghai Song , Shumin Xiao

Lead halide perovskite nanocrystals (NCs) are currently emerging as one of the most interesting solution processed semiconductors since they possess high photoluminescence quantum yield (PLQY), and colour tunability through anion exchange…

Lead-free halide double perovskites are promising stable and non-toxic alternatives to methylammonium lead iodide in the field of photovoltaics. In this context, the most commonly used double perovskite is Cs$_2$AgBiBr$_6$, due to its…

Materials Science · Physics 2022-08-29 Elisabetta Landini , Karsten Reuter , Harald Oberhofer

Halide perovskite solar cells have demonstrated a rapid increase in power conversion efficiencies. Understanding and mitigating remaining carrier losses in halide perovskites is now crucial to enable further increases to approach their…

Organometal halide perovskite has emerged as a promising material for solar cells and optoelectronics. Although the long diffusion length of photo-generated carriers is believed to be a critical factor responsible for the material's high…

Materials Science · Physics 2016-12-30 Shuhao Liu , Lili Wang , Wei-Chun Lin , Sukrit Sucharitakul , Clemens Burda , Xuan. P. A. Gao

We propose a solar thermal energy conversion system consisting of a solar absorber, a thermoradiative cell or negative illumination photodiode, and a photovoltaic cell. Because it is a heat engine, this system can also be paired with…

Solution-processed quantum dots (QDs) have a high potential for fabricating low cost, flexible and large-scale solar energy harvesting devices. It has recently been demonstrated that hybrid devices employing a single monovalent cation…

The efficiency and stability of halide perovskite-based solar cells and light-emitting diodes directly depend on the intricate dynamics of solid-solid crystallization[1-23]. In this study, we employ a multi-scale approach using random phase…

Materials Science · Physics 2024-04-09 Paramvir Ahlawat

Successful commercialization of Perovskite/Si tandem solar cells (P/Si TSCs) need a-priori estimation of technological benchmarks to outperform c-Si based technologies under field conditions. To this end, through detailed numerical…

Materials Science · Physics 2022-07-05 Ganga Vinod Chittiboina , Pradeep R. Nair

Solvent engineering offers fine control over the photovoltaic efficiency, film morphology, and crystallization quality of perovskite films and also enables to optimize light transmittance and absorbance in solar cell applications. In the…

Applied Physics · Physics 2022-11-28 Manoj Pandey , Dipendra Hamal , Bijaya Basnet , Bhim Kafle

Charge carrier recombination in the perovskite solar cells (PSCs) has a deep influence on the electrical performance, such as open circuit voltage, short circuit current, fill factor and ultimately power conversion efficiency. The impacts…

Mesoscale and Nanoscale Physics · Physics 2018-03-28 Lin Xing Shi , Zi Shuai Wang , Zengguang Huang , Wei E. I. Sha , Haoran Wang , Zhen Zhou

One of the most significant features of lead-halide perovskites are their ability to have comparably slow recombination despite the fact that these materials are mostly processed from solution at room temperature. The slow recombination…

Applied Physics · Physics 2019-07-26 Thomas Kirchartz

Design and modification of the interfaces, always a critical issue for semiconductor devices, has become the primary tool to harness the full potential of halide perovskite (HaP)-based ones. In particular the outstanding improvements in HaP…

Applied Physics · Physics 2018-12-13 Philip Schulz , David Cahen , Antoine Kahn

Lead halide-based perovskite thin films have attracted great attention due to the explosive increase in perovskite solar cell efficiencies. The same optoelectronic properties that make perovskites ideal absorber materials in solar cells are…

Organic solar cells (OSCs) are uniquely suited for semitransparent applications due to their adjustable absorption spectrum. However, most high-performance semitransparent cells reported to date are based on materials that have shown high…

Lead halide perovskites are a remarkable class of materials that have emerged over the past decade as being suitable for application in a broad range of devices, such as solar cells, light-emitting diodes, lasers, transistors, and memory…

Applied Physics · Physics 2020-08-03 Katelyn P. Goetz , Alexander D. Taylor , Fabian Paulus , Yana Vaynzof

Most traditional semiconductor materials are based on the control of doping densities to create junctions and thereby functional and efficient electronic and optoelectronic devices. The technology development for halide perovskites had…

Materials Science · Physics 2021-12-08 Basita Das , Irene Aguilera , Uwe Rau , Thomas Kirchartz

With excellent efficiencies being reported from multiple labs across the world, device stability and the degradation mechanisms have emerged as the key aspects that could determine the future prospects of perovskite solar cells. However,…

Applied Physics · Physics 2017-04-24 Vikas Nandal , Pradeep R. Nair