Results 81 to 90 of about 119,836 (277)

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Sputtered SnO₂/ZnO Heterostructures for Improved NO₂ Gas Sensing Properties

Chemosensors, 2020
A highly sensitive and selective NO2 gas sensor dependent on SnO2/ZnO heterostructures was fabricated using a sputtering process. The SnO2/ZnO heterostructure thin film samples were characterized by field emission scanning electron microscopy (FESEM), X ...
Bharat Sharma, Ashutosh Sharma, Monika Joshi, Jae-ha Myung   +3 more
doaj   +1 more source

Multicolor Optoelectronic Synapse Enabled by Photon‐Modulated Remote Doping in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Multicolor optoelectronic synapses are realized by vertically integrating solution‐processed MoS2 thin‐film and SWCNT. The electronically disconnected but interactive MoS2 enables photon‐modulated remote doping, producing a bi‐directional photoresponse.
Jihyun Kim, Hyunbin Kim, Gang Jin Cheon, Dohyun Lee, In Soo Kim, Uiyeon Won, Jongseok Lee, Sang Min Won, Joohoon Kang   +8 more
wiley   +1 more source

Photoactive Tungsten-Oxide Nanomaterials for Water-Splitting

Nanomaterials, 2020
This review focuses on tungsten oxide (WO3) and its nanocomposites as photoactive nanomaterials for photoelectrochemical cell (PEC) applications since it possesses exceptional properties such as photostability, high electron mobility (~12 cm2 V−1 s−1 ...
Yerkin Shabdan, Aiymkul Markhabayeva, Nurlan Bakranov, Nurxat Nuraje   +3 more
doaj   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Electrically Driven Interlayer Excitons in MoSe2/WSe2 Heterostructures

Advanced Materials Interfaces
Heterostructures based on monolayer transition metal chalcogenide (TMD) semiconductors have offered a robust platform for exploring light‐matter interactions.
Dohyun Kwak, Kenji Watanabe, Takashi Taniguchi, Thomas Mueller   +3 more
doaj   +1 more source

Conductive Atomic Force Microscopy of Semiconducting Transition Metal Dichalcogenides and Heterostructures

Nanomaterials, 2020
Semiconducting transition metal dichalcogenides (TMDs) are promising materials for future electronic and optoelectronic applications. However, their electronic properties are strongly affected by peculiar nanoscale defects/inhomogeneities (point or ...
Filippo Giannazzo, Emanuela Schilirò, Giuseppe Greco, Fabrizio Roccaforte   +3 more
doaj   +1 more source

Probing the Electron States and Metal-Insulator Transition Mechanisms in Atomically Thin MoS2 Based on Vertical Heterostructures

, 2014
The metal-insulator transition (MIT) is one of the remarkable electrical transport properties of atomically thin molybdenum disulphide (MoS2). Although the theory of electron-electron interactions has been used in modeling the MIT phenomena in MoS2, the ...
Cai, Yuan, Chen, Xiaolong, Han, Tianyi, Han, Yu, He, Yuheng, Huang, Rui, Long, Gen, Sheng, Ping, Wang, Lin, Wang, Ning, Wang, Yang, Wu, Zefei, Xiong, Wei, Xu, Shuigang, Ye, Weiguang   +14 more
core   +1 more source

Reversible writing of high-mobility and high-carrier-density doping patterns in two-dimensional van der Waals heterostructures [PDF]

, 2020
A key feature of two-dimensional materials is that the sign and concentration of their carriers can be externally controlled with techniques such as electrostatic gating.
Crommie, MF, Jiang, L, Kahn, S, Shi, W, Taniguchi, T, Tsai, HZ, Wang, F, Wang, SY, Watanabe, K, Wong, D, Zettl, A   +10 more
core  

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

Advanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus, Dávid Beke, Lili Vajtai, András Jánossy, László Forró, Ferenc Simon   +5 more
wiley   +1 more source