Results 191 to 200 of about 21,497 (264)

Conductive Tin Oxide Under the Thermal Budget of Perovskite/TOPCon Tandems: Toward Indium‐Free Contacts

Advanced Materials Technologies, EarlyView.
This work demonstrates that achieving conductive undoped SnOx contacts required careful tailoring of oxygen vacancy (VO) tuning and defect engineering. Controlling oxygen deposition pressure and low‐temperature annealing (300°C) optimizes defect stoichiometry and mitigates carrier scattering. This low thermal budget approach significantly enhances Hall
Paul Llontop, Mario Hanser, Matthew Wright, Soumyajit Maitra, Eloy J. Marcelis, Jana‐Isabelle Polzin, Martin Bivour, David C. Grinter, Pilar Ferrer, Iris C. G. van den Bosch, Christoph Baeumer, Ruy S. Bonilla, Armin Richter, Monica Morales‐Masis   +13 more
wiley   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Nanoscale Graded Nitrogen-Doping of TiO₂ via Pulsed Laser Deposition for Enhancing Charge Transfer in Perovskite Solar Cells. [PDF]

Small
Jung Y, Yoon KT, Park J, Choi H, Kim S, Kwak HD, Cho SH, Kim T, Lee J, Lee YS.   +9 more
europepmc   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

High-Quality Perovskite Thin Films for NO₂ Detection: Optimizing Pulsed Laser Deposition of Pure and Sr-Doped LaMO₃ (M = Co, Fe). [PDF]

Materials (Basel)
Cieniek L, Kopia A, Kowalski K, Moskalewicz T.   +3 more
europepmc   +1 more source

Chalcogen Alloy‐Engineered Te2Se/Si Heterojunctions for Low‐Noise Complementary Metal‐Oxide Semiconductor‐Compatible Short‐Wave Infrared Imaging

Advanced Optical Materials, EarlyView.
A Te2Se/Si heterojunction designed through atomistic simulations reduces oxide‐related traps, dark current, and noise compared with pure tellurium devices. This CMOS‐compatible platform enables short‐wave infrared detection and high‐contrast imaging in a 14 × 14 array, highlighting a scalable strategy for robust, low‐noise SWIR photodetectors and image
Byeongjin Park, Sieun Yun, Seock‐Jin Jeong, Euiyoung Choi, Min Cheol Kim, Jun Woo Kim, Seongmo Kang, Jiwoo Kim, Jongwon Yoon, Jaejun Jo, Hyun‐Soo Ra, Soon‐Yong Kwon, Han Seul Kim, Yonghun Kim   +13 more
wiley   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

The origin of the large T c variation in FeSe thin films probed by dual-beam pulsed laser deposition. [PDF]

Quantum Front
Feng Z, Zhang H, Yuan J, Jiang X, Wu X, Zhao Z, Xu Q, Stanev V, Zhang Q, Yang H, Gu L, Meng S, Weng S, Chen Q, Takeuchi I, Jin K, Zhao Z.   +16 more
europepmc   +1 more source

Donor‐Strength‐Driven Evolution From Charge‐Transfer to Polymethine Excited States in CurcBF2 Derivatives

Advanced Optical Materials, EarlyView.
Donor strength governs the excited‐state character and TADF behavior of donor‐acceptor‐donor borondifluoride curcuminoid derivatives. Increasing donor strength drives a transition from charge‐transfer TADF to a zwitterionic polymethine structure with predominantly local excited‐state emission and suppressed TADF.
Anthony D'Aléo, Guillaume Michaluszko, Amandine Coron, Dae‐Hyeon Kim, Alban de Gary, Danillo Valverde, Elena Zaborova, Emilie Couzigné, Lorry Engel, Loïc Mager, Gabriel Canard, Chihaya Adachi, Yoann Olivier, Jean‐Charles Ribierre   +13 more
wiley   +1 more source

Crossover From Excitonic to Bulk Emission in Metal Halide Perovskite Nanocomposites

Advanced Optical Materials, EarlyView.
A transition from excitonic to free‐charge recombination is uncovered in perovskite nanocomposites as a function of nanostructure size using PLQY(R, F) mapping as a function of excitation fluence (F) and repetition rate (R). These findings demonstrate that PLQY(R, F) mapping serves as a powerful and non‐invasive tool to extract quantitative information
Miriam Minguez‐Avellan, Alexandr Marunchenko, Víctor Sagra‐Rodríguez, Rafael Abargues, Pablo P. Boix, Ivan G. Scheblykin   +5 more
wiley   +1 more source