
Ultrathin Bi2O2S nanosheet near-infrared photodetectors
Here, we demonstrate for the first time, the scalable room-temperature chemical synthesis and near-infrared (NIR) photodetection of ultrathin Bi 2 O 2 S nanosheets. The thickness of the freestanding nanosheets was around 2–3 nm with a lateral dimension of ∼80–100 nm.
Environment friendly and non-toxic flexible Bi2O2S nanosheet ...
2023年5月12日 · Researchers are already becoming willing to get involved in bismuth oxysulfide (Bi2O2S), a new two-dimensional optoelectronic material with a lengthy carrier lifetime and a unique loose structure. In this work, the Bi2O2S nanosheets are produced by room temperature chemical synthesis and built a Bi2O2S nanosheets flexible photodetector based on ...
Bi2O2S nanosheets for effective visible light photocatalysis of …
2024年4月15日 · Herein, we introduce the first investigation into the photocatalytic properties of ultrathin Bi 2 O 2 S nanosheets prepared by a hydrothermal method. These nanosheets demonstrate exceptional efficiency in degrading congo red (CR) and rose bengal (RB) when exposed to visible light.
Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S …
2015年2月3日 · Nanoscale Bi 2 O 2 S crystals with an indirect band gap of 1.12 eV are synthesized via a facile hydrothermal method. This semiconductor shows excellent photoelectric response under the irradiation of visible light lamp at room temperature.
段满益教授团队最新Appl. Surf. Sci.:多层Bi2O2X(X=S,Se,Te) …
2023年1月25日,化学一区顶刊 Applied Surface Science 在线发表了 四川师范大学段满益教授团队 题为“The electronic and optical properties of multi-layer Bi2O2X (X = S, Se, Te) by first-principles calculations ”的报告。 该项研究使用 VASP 进行 第一性原理计算。 石墨烯 和 MoS2 等二维材料 因其 优异的电子和光电特性 而被广泛研究。 具有 高载流子迁移率 和 中等带隙 的材料越来越 受到关注。 然而, 它们在实际应用中却存在局限性。 例如, 石墨烯 是一种具有 卓越的 …
ACS Applied Materials & Interfaces - ACS Publications
2022年1月31日 · Two-dimensional (2D) bismuth oxychalcogenide (Bi 2 O 2 X, X refers to S, Se, and Te) is one type of rising semiconductor with excellent electrical transport properties, high photoresponse, and good air stability. However, the research on 2D Bi 2 O 2 S is limited.
Raman Spectra and Strain Effects in Bismuth Oxychalcogenides
2018年8月3日 · A new type of two-dimensional layered semiconductor with weak electrostatic but not van der Waals interlayer interactions, Bi 2 O 2 Se, has been recently synthesized, which shows excellent air stability and ultrahigh carrier mobility.
ACS Appl. Mater. Interfaces:基于超薄Bi2O2S纳米片的高性能宽带 …
制备了超薄 Bi_ {2}O_ {2}S 纳米片PEC光电探测器,并研究了它们在不同波长(365、455、525、630和850 nm)和电解质(0.1 M KOH、0.5 M KOH、1.0 M KOH和0.5 M Na2SO4)下的光响应性能。 PEC光电探测器的宽带光响应范围为365~850nm。 光响应性能可以通过照明波长、施加偏压、浓度和电解质种类进行有效调节。 此外,此外,超薄 Bi_ {2}O_ {2}S 纳米片PEC光电探测器可以作为宽带光响应区为365~630nm的高性能自供电光电探测器。 PEC光电探测器具有高响应 …
Tailoring Broadband Nonlinear Optical Characteristics and …
Here, comprehensive experimental and computational investigations are conducted in the regulated band structure, nonlinear optical (NLO) characteristics, and carrier dynamics of Bi 2 O 2 S nanosheets via defect engineering, taking O vacancy (OV) and substitutional Se doping as …
基于超薄Bi2O2S纳米片的高性能宽带光电化学光电 ... - X-MOL
2022年1月31日 · 基于二维 Bi 2 O 2 S 的 PEC 光电探测器具有出色的光电探测性能,具有 365 至 850 nm 的宽光响应光谱、13.0 mA/W 的高响应度、10/45 ms 的超快响应时间和良好的长期稳定性在 0.6 V 的偏置电压下,这优于大多数基于 2D 材料的 PEC 光电探测器。 此外,2D Bi 2 O 2 S PEC 光电探测器可以用作高性能自供电宽带光电探测器。 此外,光响应性能可以通过电解质的浓度和种类有效调节。 我们的结果表明,2D Bi 2 O 2S 纳米片在高性能光电器件中的应用前景 …
- 某些结果已被删除