Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Two-dimensional (2D) semiconductors with direct band gaps offer opportunities for constructing ultrathin and compactly integrated light-emitting diodes (LEDs). Current LEDs based on 2D semiconductors mostly work in the visible light spectrum rather than the near-infrared telecommunication band, hindering their incorporation into established applications such as optical computing and communication. In this study, we report on the LED from the bilayer and trilayer phosphorene in the near-infrared regime leveraging the direct bandgap nature of black phosphorus (BP). The layer-number-sensitive electrical field regulation characteristics of bright excitons in bilayer and trilayer phosphorene were revealed. Moreover, the dominating exciton types and emission wavelengths were demonstrated to be dynamically regulated from a single trilayer phosphorene-based LED near 1500 nm by judiciously controlling the electric field and carrier injection conditions. The findings suggest the potential application of 2D semiconductors in miniaturized light source devices operating in the near-infrared telecommunication band.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsnano.5c02908 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Epitaxial Growth of Blue-Emitting CsPbBr Nanocrystals on a Pb-Doped LDH Matrix and Application in White LEDs.
ACS Appl Mater Interfaces
September 2025
School of Chemistry & Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
Halide perovskite quantum dots (QDs) have demonstrated outstanding performance in light-emitting applications. However, the performance of blue perovskite QDs lags far behind that of their red and green counterparts, especially those with color coordinates approaching (0.131, 0.
View Article and Find Full Text PDFEnzymatic and mechanical disruption before successive photodynamic therapy targets the extracellular matrix of Candida albicans.
Photodiagnosis Photodyn Ther
September 2025
Laboratory of Applied Microbiology Department of Dental Materials and Prosthodontics, Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araraquara, Araraquara, SP, Brazil. Electronic address:
Objective: To evaluate whether pretreatment strategies targeting the extracellular matrix (ECM), such as DNase I and low-frequency ultrasound, enhance the efficacy of successive antimicrobial photodynamic therapy (aPDT) against Candida albicans biofilms and to assess the effects on biofilm components.
Methods: Forty-eight-hour C. albicans (ATCC 90028) biofilms were treated under four conditions: (I) aPDT [Photodithazine (PDZ) (25 mg/L) for 20 min + Light-Emitting Diode (LED) (660 nm, 18 J/cm²)], (II) DNase+aPDT [5 min with 20 U/mL DNase I before aPDT], (III) sonication+aPDT [7 W, 170-190 J before aPDT], (IV) Dn+So+aPDT.
Achieving optimal inactivation of Aspergillus niger via combined KrCl excimer lamp (222 nm) and NHCl: Mechanistic analysis.
Water Res
September 2025
Shaanxi Provincial Field Scientific Observation and Research Station of Water Quality in Qinling Mountains, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR Chi
The presence of melanin within pathogenic filamentous fungi, particularly Aspergillus niger (A. niger) spores, poses considerable challenges to fungal disinfection due to its potent protective effect, while a novel krypton chlorine (KrCl) excimer lamp may provide a promising solution. This study systematically evaluated the disinfection performance and underlying mechanisms of the KrCl excimer lamp (222 nm) targeting A.
View Article and Find Full Text PDFLight-emitting diode-derived blue light overexposure accelerates corneal endothelial cell aging by inducing abnormal ROS accumulation.
J Photochem Photobiol B
September 2025
The First Affiliated Hospital, Department of Ophthalmology, Hengyang Medical school, University of South China, Hengyang, Hunan 421001, China; Xiamen University Affiliated Xiamen Eye Center, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian Engineering and Research Center
Blue light, defined as short-wavelength visible light ranging from 400 to 500 nm, is recognized for its high energy within the visible light spectrum. The prevalent use of light-emitting diodes (LEDs) has significantly increased exposure to blue light. Corneal endothelial cells (CECs) playing a crucial role in maintaining corneal transparency to get clear visual field.
View Article and Find Full Text PDFEnhanced Energy Harvesting and Human-Machine Interaction Sensing via the Tribo-Photovoltaic Effect in a Metal/n-Type GaAs Triboelectric Nanogenerator.
Langmuir
September 2025
Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
This study presents a novel photovoltaic triboelectric nanogenerator (PTENG) that operates on sliding contacts between n-type (gallium arsenide) GaAs and metal electrodes in the presence of periodic light illumination, which offers harvesting energy synergistically by integrating both photovoltaic and triboelectric effects to enhance the energy output. Using an in-house built test setup with provision of laser illumination, the open-circuit voltage () and short-circuit current () were measured for the n-GaAs semiconductors with different metal contacts (Al and Cu). Under both laser light (630 nm) and without laser light conditions, n-GaAs with aluminum contacts exhibited the highest and values, reaching up to 11.
View Article and Find Full Text PDF