Results 21 to 30 of about 189 (135)
Progress in Photovoltaics: Research and Applications, EarlyView.In this work, Na and Rb are incorporated into ultra‐thin Cu(In,Ga)Se2 (< 500 nm). By systematically varying the Rb content and combining predeposited Na with postdeposited Rb, we identify the optimal configuration, achieving solar cell efficiencies of 11.72% on Mo and 10.48% on ITO. Through electrical and compositional measurements, a mechanistic model
Christoph Rath +2 more
wiley +1 more source
Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface
Nature Communications, 2020 Anion vacancies are a hurdle for technologies based on chalcogenide semiconductors and topological insulators. Even at room temperature, oxidation and cyanide etching can lead to selenium vacancies in CuInSe2 photovoltaic material but suitable post ...
Diego Colombara +18 more
doaj +1 more source
Heavy‐Metal‐Free Colloidal Quantum Dots for Photocatalysis
Small, EarlyView.Heavy‐metal‐free colloidal quantum dots provide sustainable photocatalytic platforms by combining tunable band structures, strong light absorption, and programmable surfaces/interfaces. This Review highlights how core/shell engineering, alloying, defect regulation, ligand design, and hybrid‐interface construction direct charge separation and ...
Xintong Xu, Ge Yang, Qin Li, Dechao Chen
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Advances in Materials Science and Engineering, 2014 The relatively small band gap values (~1 eV) of CuInSe2 thin films limit the conversion efficiencies of completed CuInSe2/CdS/ZnO solar cell devices.
Francis B. Dejene
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Advanced Science, 2023 Regulating the charge migration and separation in photoactive materials is a great challenge for developing photoelectrochemical (PEC) applications.
Cheng Wang +6 more
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Small, EarlyView.This study reports a self‐powered broadband photodetector based on compositionally tuned p‐(CuS)x(ZnSe)1−x/p‐Si isotype heterojunctions. Increasing the CuS ratio improved the film crystallinity and produced a denser, more homogeneous nanopillar morphology, enhancing light absorption.
Ali Olkun
wiley +1 more source
Solution-processable integrated CMOS circuits based on colloidal CuInSe2 quantum dots
Nature Communications, 2020 Designing efficient toxic-element-free technologies in solution-processable CMOS electronics remains a challenge. Here, the authors demonstrate integrated logic CMOS circuits based on heavy-metal-free colloidal CuInSe2 quantum dots with low switching ...
Hyeong Jin Yun +5 more
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Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The unique double monocapped trigonal cupola coordination polyhedra of Te(2) atoms inside the crystal structure of Ca9N4Te3. Green, moisture‐sensitive Ca9N4Te3 was obtained from Ca/Na flux at 1173 K as a by‐product of reddish‐brown Ca6N2Te3 and crystallizes in the trigonal space group R3¯$\overline{3}$ (No. 148, Z = 3).
Guowei Sun, Rainer Niewa
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Simulation of Vertical Thin-Film Solar Battery under Exposure of Concentrated Solar Radiation
Известия высших учебных заведений и энергетических объединенний СНГ: ЭнергетикаSolar energy is one of the most important and promising energy sectors in the world. Batteries that convert sunlight into electrical energy could become a replacement for traditional carbon-based energy sources. Vertical thin-film solar batteries are one
A. K. Esman +3 more
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Progress in Photovoltaics: Research and Applications, Volume 34, Issue 9, Page 1146-1158, September 2026.This work demonstrates progress in the development of wide‐bandgap CIGS solar cells featuring a transparent back contact, for the application of top cell in tandem devices. A semitransparent device with a bandgap of 1.6 eV achieved a power conversion efficiency of nearly 13% on an ITO back contact.
Kulwinder Kaur +6 more
wiley +1 more source