Results 51 to 60 of about 2,441 (222)

Sustainable Synaptic Device with Two‐Dimensional Ferroelectric Materials for Neuromorphic Computing

Advanced Science, EarlyView.
α‐In2Se3 based FeSFETs can be utilized as sustainable devices through polarization switching governed by both out‐of‐plane and in‐plane polarizations. Upon reaching a fatigued state, current annealing enabled by conductance modulation can significantly enhance the endurance of FeSFETs.
Jaewook Yoo, Seokjin Oh, Minah Park, Jong Min Song, Hongseung Lee, Seohyeon Park, Sojin Jung, Seongbin Lim, Soohyun Lim, Dongsun Shin, Ji Won Heo, TaeWan Kim, Hagyoul Bae   +12 more
wiley   +1 more source

Thermionic emission in gold nanoparticles under femtosecond laser irradiation observed with photoemission electron microscopy

AIP Advances, 2019
This study reports that thermionic emission can dominate over multi-photon ionization in gold nanoparticles under femtosecond laser irradiation. The brightness of individual particles observed with photoemission electron microscopy increased steeply for ...
Bochao Li, Chang Yang, Hao Li, Boyu Ji, Jingquan Lin, Toshihisa Tomie   +5 more
doaj   +1 more source

Structural and Compositional Effects on the Scintillation Properties of Fast Emitting Metal‐Organic Frameworks

Advanced Science, EarlyView.
The crystalline structure, the atomic numbers of the constituent elementsand the size of MOF crystals each influence their photoluminescence and scintillation properties in distinct ways. Together, these factors provide valuable guidelines for designing systems with optimized performance and tunable timing characteristics, arising from the synergistic ...
Francesca Cova, Jacopo Perego, Biplab Joarder, Nobuhiro Yanai, Anna Vedda, Silvia Bracco, Angiolina Comotti, Angelo Monguzzi, Irene Villa   +8 more
wiley   +1 more source

Low Temperature Synthesis of Rare-Earth Hexaborides for Solar Energy Conversion

MATEC Web of Conferences, 2014
Thermionic energy conversion is an ideal way of converting concentrated solar energy into electricity. Developing suitable emitter/collector materials, with optimum work functions whilst being able to withstand elevated temperatures under high vacuum ...
Hasan Muhammad M., Sugo Heber, Kisi Erich H.   +2 more
doaj   +1 more source

Reverse I–V–T analysis of Ti and Ni Schottky diodes on 6H-SiC with three contact areas [PDF]

AIP Advances
This work investigates the reverse-bias electrical behavior of Ti and Ni Schottky diodes fabricated on n-type 6H-SiC epitaxial layers, with contact areas of three different sizes: large (1.6 × 1.6 mm2), medium (1.6 × 0.4 mm2), and small (0.4 × 0.4 mm2 ...
Elhachani Bounab, Abdelaziz Rabehi, Baya Zebentout, Schahrazade Tizi, Abdullah K. Alanazi, Takele Ferede Agajie, Zineb Benamara   +6 more
doaj   +1 more source

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

Advanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang, Geng Huangfu, Hongjie Zhang, Tiannan Yang, Zhenhua Ma, Jingsheng Chen, Yun Liu, Yiping Guo   +7 more
wiley   +1 more source

Photoelectric‐Coupled Ferroelectric Heterojunctions for Ultrahigh NO2 Sensing With Polarization‐Memory‐Assisted Interfacial Modulation

Advanced Science, EarlyView.
This study demonstrates a Bi2WO6/SrBi2Ta2O9 heterojunction where light‐driven ferroelectric polarization reversal couples with persistent photoconductivity, enabling exclusive NO2 selective room‐temperature sensing. The device achieves a two‐order‐of‐magnitude sensitivity enhancement over an unpolarized device, a sub‐ppb detection limit, and robust ...
Liping Tan, Xuefeng Hu, Ming Zhou, Weiwei Qing, Along Li, Zilong Wang, Mudan Feng, Shuang Zhao, Xiaoliang Wang, Peipei Li, Yali Bi, Wei Zhang   +11 more
wiley   +1 more source

Modeling of MoS2/Si heterostructure to study charge transfer dynamics

Nano Express
Here, we synthesized a MoS _2 /Si heterojunction device using a scalable approach involving DC sputtering coupled with sulfurization. The observed current–voltage characteristics unequivocally indicate a rectifying behavior at MoS _2 /Si heterointerface.
Vartika Tiwari, Aditya Kushwaha, Neeraj Goel   +2 more
doaj   +1 more source

Electro-Physical Interpretation of the Degradation of the Fill Factor of Silicon Heterojunction Solar Cells Due to Incomplete Hole Collection at the a-Si:H/c-Si Thermionic Emission Barrier

Applied Sciences, 2018
An electro-physical interpretation for the degradation of the Fill Factor in p+/n silicon heterojunction solar cells (SHJ) due to incomplete hole collection at the thermionic emission barrier at the amorphous/crystalline silicon (a-Si:H/c-Si) hetero ...
Moustafa Ghannam, Yaser Abdulraheem
doaj   +1 more source

Current Transport Mechanism in Palladium Schottky Contact on Si-Based Freestanding GaN

Nanomaterials, 2020
In this study, the charge transport mechanism of Pd/Si-based FS-GaN Schottky diodes was investigated. A temperature-dependent current−voltage analysis revealed that the I-V characteristics of the diodes show a good rectifying behavior with a large ...
Moonsang Lee, Chang Wan Ahn, Thi Kim Oanh Vu, Hyun Uk Lee, Yesul Jeong, Myung Gwan Hahm, Eun Kyu Kim, Sungsoo Park   +7 more
doaj   +1 more source