Results 241 to 250 of about 7,737 (297)

Selective Crystal Growth and Optical Responses of 2H and 3R Polytypes in van der Waals Polar Insulator α‐In2Se3

Advanced Optical Materials, EarlyView.
Selective growth protocols are established to obtain high‐quality bulk single crystals of the 2H and 3R polytypes of the vdW polar insulator α‐In2Se3, together with rapid, non‐destructive phase‐identification methods. Combined optical transmission and absolute reflectivity measurements, supported by DFT calculations, reveal distinct polytype‐dependent ...
Ryoga Murata, Takao Sasagawa
wiley   +1 more source

Room-temperature valley-selective emission in Si-MoSe₂ heterostructures enabled by high-quality-factor chiroptical cavities. [PDF]

Nat Commun
Pan F, Li X, Johnson AC, Dhuey S, Saunders A, Hu MX, Dixon JP, Dagli S, Lau SC, Weng T, Chen CY, Zeng JH, Apte R, Heinz TF, Liu F, Deng ZL, Dionne JA.   +16 more
europepmc   +1 more source

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

Advanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini   +9 more
wiley   +1 more source

Controlled Growth of Two-Dimensional SnSe/SnS Core/Crown Heterostructures. [PDF]

Nano Lett
Schulz J, Schindelhauer L, Ruhmlieb C, Wehrmeister M, Tsangas T, Mews A.   +5 more
europepmc   +1 more source

Excitonic Landscapes in Monolayer Lateral Heterostructures Revealed by Unsupervised Machine Learning

Advanced Optical Materials, EarlyView.
Hyperspectral photoluminescence data from graded MoxW1 − xS2 alloys and monolayer MoS2–WS2 lateral heterostructures are analyzed using unsupervised machine learning. The combined use of PCA, t‐SNE, and DBSCAN uncovers distinct excitonic regions that trace how composition, strain, and defects modulate optical responses in these 2D materials.
Maninder Kaur, Nicolas T. Sandino, Jason P. Terry, Mahdi Ghafariasl, Yohannes Abate   +4 more
wiley   +1 more source

Efficient Low-temperature Ammonia Cracking Enabled by Strained Heterostructure Interfaces on Ru-free Catalyst. [PDF]

Adv Mater
Xiong P, Li J, Xu Z, Lin Y, Bennett RD, Zhang Y, Tu WM, Zhu Y, Soo YL, Wu TS, Li MM.   +10 more
europepmc   +1 more source

<i>In Situ</i> Engineering of Two-Dimensional Heterostructures for Enhanced Photocatalytic Decontamination of Methyl Orange. [PDF]

ACS Appl Eng Mater
Chen J, Jin X, Zhang P, Song N, Gao P, Fischer RA, Mukherjee S.   +6 more
europepmc   +1 more source

Giant Light Emission Enhancement in Strain-Engineered InSe/MS₂ (M = Mo or W) van der Waals Heterostructures. [PDF]

Nano Lett
Blundo E, Tuzi F, Cuccu M, Re Fiorentin M, Pettinari G, Patra A, Cianci S, Kudrynskyi ZR, Felici M, Taniguchi T, Watanabe K, Patanè A, Palummo M, Polimeni A.   +13 more
europepmc   +1 more source

Heterostructured Electrocatalysts: from Fundamental Microkinetic Model to Electron Configuration and Interfacial Reactive Microenvironment. [PDF]

Adv Mater
Li Y, Hassan MS, Zhao X, Rogach AL.
europepmc   +1 more source

Development and characterization of a graphene quantum dot/g-C₃N₄ photocatalyst for efficient degradation of Rhodamine B. [PDF]

Sci Rep
Mirzaei H, Ehsani MH, Shakeri A.
europepmc   +1 more source