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Photoelectrochemical (PEC) water splitting to generate hydrogen is one of the most studied methods for converting solar energy into clean fuel because of its simplicity and potentially low cost. Despite over 40 years of intensive research,…

Materials Science · Physics 2019-01-02 Ling-Ju Guo , Jun-Wei Luo , Tao He , Su-Huai Wei , Shu-Shen Li

The search for highly effective and environmentally safe photocatalysts for water splitting and photovoltaic solar cells is essential for renewable solar energy conversion and storage. Based on first principles calculations, we show that…

Materials Science · Physics 2023-05-23 Mukesh Jakhar , Ashok Kumar

Molecular sorting is a fundamental process that allows eukaryotic cells to distill and concentrate specific chemical factors in appropriate cell membrane subregions, thus endowing them with different chemical identities and functional…

Soft Condensed Matter · Physics 2022-11-09 Elisa Floris , Andrea Piras , Francesco Saverio Pezzicoli , Marco Zamparo , Luca Dall'Asta , Andrea Gamba

The development of noble-metal free electrocatalysts is of high importance for clean energy conversion applications. MoS$_2$ has been considered as a promising low cost catalyst for the hydrogen evolution reaction (HER), however its…

Atomically thin layered materials such as graphene and transition-metal dichalcogenides exhibit great potential as active materials in optoelectronic devices because of their high carrier-transporting properties and strong light-matter…

Two-dimensional tungsten disulfide (WS2) is a promising semiconductor for next-generation optoelectronic and photovoltaic devices, but scalable routes to uniform, large-area films remain challenging. In this study, a systematic thermal…

Materials Science · Physics 2025-12-01 Jisun Kim , Yoosuk Kim , Seung-Ho Park , Yong Hun Ko , Chong-Yun Park

Highly efficient, environmental friendly and renewable sources of energy are of great need today to combat with increasing energy demands and environmental pollution. In this work, we have investigated the novel 2D allotropes i.e.,…

Materials Science · Physics 2023-05-22 Jaspreet Singh , Ashok Kumar

In this study, effects of the shell material and confinement type on the conversion efficiency of the core/shell quantum dot nanocrystal (QDNC) solar cells have been investigated in a detail manner. For this purpose, the conventional, i.e…

Applied Physics · Physics 2018-04-18 Mehmet Sahin

We show here for the first time the use of a cold sintering process (CSP) to sinter CoSb3-based thermoelectric materials. CSP at 150 {\deg}C for 90 min under a uniaxial pressure of 750 MPa yields pieces with a relative density of 86 %,…

In the previous decade, there has been a significant advancement in the performance of perovskite solar cells (PSCs), characterized by a notable increase in efficiency from 3.8% to 25%. Nonetheless, PSCs face many problems when we…

Self-nucleation in CdZnTe crystal growth remains a significant challenge, despite numerous attempts to achieve large-grain single crystals by restricting multi-nucleation during growth process using the traveling heater method. In this…

While cadmium telluride (CdTe) thin films are being used in solar cell prototyping for decades, the recent advent of two-dimensional (2D) materials challenges the fundamental limit for thickness of conventional CdTe layers. Here, we report…

Materials Science · Physics 2021-03-17 Dinesh Yadav , Fabian Pauly , Maxim Trushin

Gradual solar energetic particle (SEP) events, usually attributed to shock waves driven by coronal mass ejections (CMEs), show a wide variety of temporal behaviors. For example, TO, the >10 MeV proton onset time with respect to the launch…

Solar and Stellar Astrophysics · Physics 2023-03-29 Kosuke Kihara , Ayumi Asai , Seiji Yashiro , Nariaki V. Nitta

Perovskite solar cells (PSCs) without a hole transport layer (HTL) offer a cost-effective and stable alternative to conventional architectures, utilizing only an absorber layer and an electron transport layer (ETL). This study presents a…

Machine Learning · Computer Science 2025-05-27 Ihtesham Ibn Malek , Hafiz Imtiaz , Samia Subrina

This study explores the emergence of superconductivity in high-quality ZrTe$_{2-x}$Se$_x$ crystals, grown via the isothermal chemical vapor transport (ICVT) technique. Resistive, structural, and thermal measurements reveal that substituting…

Through a combination of rheological characterization and temperature-variable imaging methods, a novel gelation pathway in dilute solutions of a semiconducting polymer to achieve interconnected, crystalline networks with hierarchical…

Applied Physics · Physics 2018-11-26 Jing He , Xiaoqing Kong , Yuhao Wang , Michael Delaney , Dilhan M. Kalyon , Stephanie S. Lee

Solar cells with a heterojunction between colloidal CuInS$_2$ and ZnO nanocrystals are an innovative concept in solution-processed photovoltaics, but the conversion efficiency cannot compete yet with devices employing lead chalcogenide…

Applied Physics · Physics 2019-05-10 Dorothea Scheunemann , Sebastian Wilken , Jürgen Parisi , Holger Borchert

Previous studies of reverse-bias stability in perovskite solar cells have focused primarily on voltage controlled reverse-bias tests. Here we instead present an investigation of perovskite solar cell degradation under well-defined, constant…

This paper proposes an efficient three-layered p-GaAs/p-CIGS/n-CdS (PPN), a unique solar cell architecture. Copper indium gallium selenide (CIGS)-based solar cells exhibit substantial performance than the ones utilizing cadmium sulfide…

Systems and Control · Electrical Eng. & Systems 2023-09-15 Satyam Bhatti , Habib Ullah Manzoor , Ahmed Zoha , Rami Ghannam

A design tool was formulated for optimizing the efficiency of inorganic, thin-film, photovoltaic solar cells. The solar cell can have multiple semiconductor layers in addition to antireflection coatings, passivation layers, and buffer…

Numerical Analysis · Mathematics 2024-09-23 Tom H. Anderson , Benjamin J. Civiletti , Peter Monk , Akhlesh Lakhtakia