Rippled blue phosphorene with tunable energy band structures and negative Poisson’s ratio DOI Creative Commons
Rong Li, Hang Xiao, Yan Chen

et al.

AIP Advances, Journal Year: 2023, Volume and Issue: 13(12)

Published: Dec. 1, 2023

Recent successes in the discovery of novel two-dimensional (2-D) phosphorene allotropes have motivated more in-depth investigations into tuning their properties through precise geometric control. This is also driven by fact that these materials, particularly blue phosphorene, are highly prone to wrinkling. In this work, we systematically study mechanical and electronic behaviors a series rippled PN (N = 8, 18, 32, 50, 72, 98) using density functional theory combined with molecular dynamic simulations. A approach tailor energy band structure proposed wrinkle engineering, transforming native indirect bandgap direct bandgap, enabling modifying undulation magnitude ratio. Furthermore, differ significantly along 4-8-4 4-4-4 directions. Notably, negative Poisson’s ratio observed under tension direction. work demonstrates new techniques for geometrically regulating potentially other 2-D materials. The findings yield valuable insights design auxetic semiconductors tunable properties.

Language: Английский

Renaissance of elemental phosphorus materials: properties, synthesis, and applications in sustainable energy and environment DOI Creative Commons
Haijiang Tian, Jiahong Wang, Gengchang Lai

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(16), P. 5388 - 5484

Published: Jan. 1, 2023

This review summarizes the advancements in elemental phosphorus materials, focusing on fundamental physicochemical properties, synthesis, and applications sustainable energy environment.

Language: Английский

Citations

51
S-Scheme Heterojunction/Single-Atom Dual-Driven Charge Transport for Photocatalytic Hydrogen Production DOI
Huaxing Li, Rongjie Li,

Yannan Jing

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(10), P. 7308 - 7320

Published: April 25, 2024

The rational design and modification of heterojunction photocatalysts aimed at achieving fast charge transport efficient photocatalytic performance is a central goal solar-light-driven water splitting hydrogen evolution, yet this remains challenge. Herein, we prepare hierarchical photocatalyst composed few-layer violet phosphorene (VP), cadmium sulfide (CdS) nanoparticles (NPs), Pd single atoms (SAs) by facile one-step ball-milling strategy. underlying VP/CdS p–n heterojunctions are verified to adopt S-scheme directional transfer combining in situ irradiated X-ray photoelectron spectroscopy electron paramagnetic resonance. atomically dispersed sites the low-valence state coupled with synergistically achieve ultrafast (2.2 ps), which interfacial Pd–S Pd–P bonds serve as channels. In addition, density-functional theory calculations reveal key role enhancement light-harvesting capacity optimization proton adsorption thermodynamics. A visible-light production rate 82.5 mmol h–1 g–1 attained an optimal 1 wt % Pd–5 photocatalyst, manifests 54-fold increase respect that CdS NPs, addition apparent quantum efficiency (AQE) 25.7% 420 nm. This work showcases valid combination SAs for separation promoting others.

Language: Английский

Citations

44
Ultrasensitive Near-Infrared Polarization Photodetectors with Violet Phosphorus/InSe van der Waals Heterostructures DOI
Waqas Ahmad, Majeed Ur Rehman, Liang Pan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(15), P. 19214 - 19224

Published: April 5, 2024

Near-infrared (NIR) polarization photodetectors with two-dimensional (2D) semiconductors and their van der Waals (vdW) heterostructures have presented great impact for the development of a wide range technologies, such as in optoelectronics communication fields. Nevertheless, lack photogenerated charge carrier at device's interface leads to poor collection efficiency low linear dichroism ratio, hindering achievement high-performance optoelectronic devices multifunctionalities. Herein, we present type-II violet phosphorus (VP)/InSe vdW heterostructure that is predicted via density functional theory calculation confirmed by Kelvin probe force microscopy. Benefiting from band alignment, VP/InSe heterostructure-based photodetector achieves excellent photodetection performance responsivity (R) 182.8 A/W, detectivity (D*) 7.86 × 1012 Jones, an external quantum (EQE) 11,939% under 1064 nm photon excitation. Furthermore, can be enhanced manipulating device geometry inserting few layers graphene between VP InSe (VP/Gr/InSe). Remarkably, VP/Gr/InSe shows competitive sensitivity 2.59 integrated image sensor. This work demonstrates will effective promising NIR optoelectronics.

Language: Английский

Citations

14
Advancements in Optoelectronics: Harnessing the Potential of 2D Violet Phosphorus DOI
Waqas Ahmad, Aumber Abbas, Umer Younis

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 24, 2024

Abstract Recently, 2D violet phosphorus (VP), a new kind of allotrope has attained significant attention owing to its remarkable electronic, optical, and magnetic characteristics. Tunable, large direct bandgap, high charge carrier mobility, optical absorption make it potential candidate for realizing photoelectronic applications. VP demonstrates unique electronic structure, chemical stability, strong light‐matter interaction, thermal stability that can be utilized assembling intelligent devices. This review article provides comprehensive investigations the latest synthesis techniques employed develop including structural characterizations, degradation mechanisms. Furthermore, this diverse applications in optoelectronics, photodetectors, polarization detection, imaging systems, neuromorphic optoelectronic devices, many others. Finally, challenges future research directions associated with terms optoelectronics are discussed. Overall, as presented, offers an extensive study VP, covering synthesis, insights mechanisms, aim stimulating further development growing field.

Language: Английский

Citations

11
A critical review on black phosphorus and its utilization in the diverse range of sensors DOI
Somasundaram Chandra Kishore, Suguna Perumal, Raji Atchudan

et al.

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 377, P. 115719 - 115719

Published: July 19, 2024

Language: Английский

Citations

6
Enhancing Properties with Distortion: A Comparative Study of Two Iron Phosphide Fe2P Polymorphs DOI
Seongyoung Kong, Prashant Singh, Arka Sarkar

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(3), P. 1665 - 1677

Published: Jan. 24, 2024

Iron phosphide (Fe2P) crystallizes in its own hexagonal crystal structure type (h-Fe2P). As found meteorites, orthorhombic polymorph (o-Fe2P) was originally reported as a high-temperature and high-pressure phase. Recently, o-Fe2P described being stable at ambient pressure, yet no synthetic methods were developed for single-crystal growth or single-phase bulk powder synthesis. Here, we report successful method growing single crystals synthesizing phase-pure polycrystalline samples using tin-flux. In situ X-ray diffraction studies showed that the phase transition from to h-Fe2P occurs about 873 K, below temperature, formation of is favored thermodynamically rather than kinetically. Systematic comparison transport, magnetic, electrocatalytic properties both phases substantial impact on properties. The structural distortion resulted considerable changes magnetic properties, with exhibiting 60% lower Fe moment substantially higher ferromagnetic Curie temperature h-Fe2P. Electrochemical measurements toward hydrogen evolution reaction acidic media requires an 80 mV overpotential generate current density −10 mA/cm2, their electronic structures suggest states Fermi energy origin superior catalytic activity o-Fe2P.

Language: Английский

Citations

5
Phosphorus-Based Nanomaterials for Biomedical Applications: A Review DOI
Jingwen Wu, Rui Xu, Mingfei Shao

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(10), P. 11022 - 11036

Published: May 7, 2024

Phosphorus is widely present in living organisms and nature exists a variety of isomers with variable crystal structures. There are several common phosphorus monomers biomedicine, including red (RP), black (BLK-P), violet (VP), blue (BLU-P). Phosphorus-based semiconductor materials (PSCM) have adjustable band gaps, high photogenerated carrier mobility, efficient photothermal conversion as well good biocompatibility degradability. In addition, phosphorus, an essential element for life-sustaining activities, all cells the human body, accounting approximately 1% body's total weight. Therefore, phosphorus-based nanomaterials extensive applications biomedical field. This review will clarify classification, preparation methods, physicochemical properties, mechanisms action, biomedicine while also offering new ideas their development biomedicine.

Language: Английский

Citations

5
Photodegradation and van der Waals Passivation of Violet Phosphorus DOI Creative Commons
Xiangzhe Zhang, Bowen Lv, Haitao Wei

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(5), P. 422 - 422

Published: Feb. 25, 2024

Violet phosphorus (VP), a novel two-dimensional (2D) nanomaterial, boasts structural anisotropy, tunable optical bandgap, and superior thermal stability compared with its allotropes. Its multifunctionality has sparked widespread interest in the community. Yet, VP's air susceptibility impedes both probing intrinsic features device integration, thus making it of urgent significance to unveil degradation mechanism. Herein, we conduct comprehensive study photoactivated effects on VP. A nitrogen annealing method is presented for effective elimination surface adsorbates from VP, as evidenced by giant surface-roughness improvement 65.639 nm 7.09 nm, enabling direct observation morphology changes induced photodegradation. Laser illumination demonstrates significant thickness-thinning effect manifested remarkable morphological 73% quenching PL intensity within 160 s, implying great potential efficient selected-area etching VP at high resolution. Furthermore, van der Waals passivation using 2D hexagonal boron nitride (hBN) was achieved. The hBN-passivated channel exhibited improved roughness (0.512 nm), reduced photocurrent hysteresis, lower responsivity (0.11 A/W @ 450 nm; 2 μW), effectively excluding adsorbate-induced electrical optoelectrical while disabling Based our experimental results, conclude that three possible factors contribute photodegradation VP: photon energy higher than adsorbed H

Language: Английский

Citations

4
Thickness‐Dependent Photoluminescence Oscillations in Layered Violet Phosphorus DOI
Yuqing Liu, Shuaihao Tang, Xingang Zhao

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Abstract The robust excitonic effects in layered violet phosphorus (VP) render it an ideal platform for exploring photoluminescence (PL) at 2D nanoscale. However, limited research on its luminescent properties constrains understanding and hinders potential future developments. Here, a detailed investigation into the thickness‐dependent PL evolution multilayer VP samples is conducted, where their thicknesses are precisely controlled through oxygen plasma dry etching technique. pronounced exciton‐trion interaction determines envelop of spectra. And as time increases, leading to decreased sample's thickness, spectra peak blue‐shifts, exciton‐trionic ratio changes. unusual spectral oscillation small number (≈12%) discovered, despite majority exhibiting typical overall decaying tendency with decreasing thicknesses. Subsequent characterizations, especially cross‐sectional high‐angle annular dark field scanning transmission electron microscopy (HAADF‐STEM) images measurements second harmonic generation (SHG), hint possible existence allotrope new‐phase VP. First‐principles calculations, conjunction energy band theory analysis, employed delve elucidate alterations resulting from carriers non‐radiative/radiative recombination different materials. This work lays foundation VPs.

Language: Английский

Citations

0
Pressure‐Driven Polymorphic Transition, Emergent Insulator‐To‐Metal Transition, and Photoconductivity Switching in Violet Phosphorus DOI Open Access
Chen Li, Ke Liu, Dequan Jiang

et al.

Small, Journal Year: 2023, Volume and Issue: 20(9)

Published: Oct. 18, 2023

Abstract Polymorphic phase transition is an essential phenomenon in condensed matter that the physical properties of materials may undergo significant changes due to structural transformation. Phase has thus become important means and dimension for regulating material properties. Herein, this study demonstrates pressure‐induced multi‐transition both structure violet phosphorus, a novel phosphorus allotrope. Under compression, undergoes sequential polymorphic transitions. Concomitant with first transition, exhibits emergent insulator–metal superconductivity, dramatic switching from positive negative photoconductivity. Remarkably, resistance shows sudden drop around 10 7 along transition. In addition, piezochromism translucent red opaque black suppression photoluminescence are observed upon compression. Of particular interest sample irreversibly transforms into pronounced discrepancy pristine after decompression. The abundant transitions property have implications designing pressure‐responsive electronic/optoelectronic devices exploring concealed materials.

Language: Английский

Citations

10