Results 131 to 140 of about 1,224,469 (239)

Ultrafast laser-driven topological phase patterning. [PDF]

Sci Adv
Wu J, Niedermayr A, Cao G, Grånäs O, Weissenrieder J.   +4 more
europepmc   +1 more source

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

Advanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria, Maxim Wenzel, Yuk Tai Chan, Olga Iakutkina, Francesco Capitani, Davide Comboni, Michael Hanfland, Qi Wang, Hechang Lei, Martin Dressel, Alexander A. Tsirlin, Alexej Pashkin, Stephan Winnerl, Manfred Helm, Ece Uykur   +14 more
wiley   +1 more source

Fabrication of atomically flat cleavage planes with ultrafast laser scribing. [PDF]

Sci Rep
Scali F, Chen W, Berntsen MH, Li C, Osiecki J, Thiagarajan B, Phuyal D, Dendzik M, Tjernberg O.   +8 more
europepmc   +1 more source

Origin of Enhanced Efficiency and Reduced Roll‐Off in Organic Light‐Emitting Diodes Based on Pt(II) Complexes

Advanced Science, EarlyView.
Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla, Sarah K. M. McGregor, Julian A. Steele, Innes K. Gale, Kiyoshi Miyata, Monirul Hassan, Christian McDonald, Romain J. Lepage, Eduardo Solano, Pilankatta K. Ramya, Cherumuttathu H. Suresh, Takumi Ehara, Chihaya Adachi, Ken Onda, Shih‐Chun Lo, Ebinazar B. Namdas   +15 more
wiley   +1 more source

Giant magnetic moment increase by ultrafast laser light. [PDF]

Nat Commun
Sharma S, Gill D, Krishna J, Harris-Lee E, Dewhurst JK, Shallcross S.   +5 more
europepmc   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Correction: Fabrication of atomically flat cleavage planes with ultrafast laser scribing. [PDF]

Sci Rep
Scali F, Chen W, Berntsen MH, Li C, Osiecki J, Thiagarajan B, Phuyal D, Dendzik M, Tjernberg O.   +8 more
europepmc   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng, Tse‐Fu Huang, Takeshi Yamaguchi, Jia‐Wern Chen, Hsing‐Yu Kuo, Ying‐Rang Zhuang, Hung Wei Shiu, Seongmin Im, Yang Zhao, Takuo Tanaka, Ho‐Hsiu Chou, Yu‐Jung Lu   +11 more
wiley   +1 more source

Gigantic optical nonlinearity in laser-deposited gallium films on the verge of a structural phase transition

Gallium/silica interfaces prepared by ultrafast pulsed laser deposition have excellent optical qualities and structural stability. They show a gigantic optical nonlinearity in the visible and infrared, up to 1800 nm, which reaches χ3) ~ 1 ...
Lefort, L., Hanna, D.C., Puech, K., Rode, A.V., Emelyanov, V.I., MacDonald, K.F., Luther-Davies, B., Zheludev, N.I.   +7 more
core   +1 more source

Ultrafast Laser-Induced Interatomic Forces in Magnetostrictive Metals. [PDF]

Adv Sci (Weinh)
Zeng X, Zhang L, Huang Y, Fang Q, Niu Y, Wen Q, Yan P, Chen Z, Zhong Z, Jin L.   +9 more
europepmc   +1 more source