Electronics
·
2022
·Vol. 11
·期 16
·2574
·
IF 2.69
Yiren Wang,Weitao Su,Fei Chen,Hong-Wei Lu
Owing to the strong optical absorption of Sb2Se3, building heterojunctions (HJs) by using thin-layer Sb2Se3 and other two-dimensional (2D) materials is critical to the design and applications of ultrathin optoelectronic devices. However, the preparation of HJs using Sb2Se3 and other transition metal dichalcogenide (TMDC) thin layers is still challenging. Herein, a chemical vapor deposition (CVD) method was used to prepare monolayer MoS2(1L-MoS2) and Sb2Se3 thin layers. A dry transfer method was subsequently used to build their HJs. Individual PL spectra and PL mapping results obtained at the HJs indicate a charge injection from 1L-MoS2 into Sb2Se3 flake, which was further confirmed by contact potential difference (CPD) results obtained by using Kelvin probe force microscopy (KPFM). Further measurements indicate a type-Ⅰ band alignment with a band offset finally determined to be 157 meV. The obtained results of Sb2Se3/1L-MoS2 HJs will benefit the rational design of novel ultrathin optoelectronic devices based on novel 2D absorber layers working in visible light.
研究领域:
材料科学
·
光电子学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Wen Wu,Manjing Wang,Limin Liang,Yufei Yan,Xuerong Zheng,Qiuyan Hao,Hui Liu,Jun Zhang,Caichi Liu
The length effects on photoconductivity have been observed in Sb 2 Se 3 nanorods with uniform diameter grown by a hot-injection polyol process. The phase formation and morphology evolution of Sb 2 Se 3 nanorods were investigated by XRD and TEM analysis. By changing the reaction temperature from 150 °C to 250 °C, the sizes and aspect ratios of Sb 2 Se 3 nanorods can be easily controlled, with an average length ranged from 0.6 μm to 3.2 μm. The length-controlled nanorods were directly used for fabricating prototype photodetectors to explore their length-dependence performances. A significant increase of photoresponse with length elongation has been observed, in which the optimal device displays a remarkable response to simulated solar light with a high switching “on/off” ratio of 320, short response/recovery times (0.15/0.16 s) and long-term durability. This length-dependence property on photodetectors can be considered as an important step to promote the performance of 1D Sb 2 Se 3 nanomaterials .
研究领域:
材料科学
·
纳米技术
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产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2019
·Vol. 22
·期 1
·68-73
·
IF 3.382
Junli Wang,Fan Guan
Antimony selenide (Sb2Se3) is a low-toxic, element-abundant, narrow bandgap (Eg = ∼1.1–1.3 eV) semiconductor that shows potential for UV-Visible-Near-infrared optoelectronic applications. This paper reports the use of potassium selenocyanate (KSeCN) as a novel molecular selenium source to synthesize Sb2Se3 uniform nanorods. The resulting nanorods have been carefully characterized and are found to exhibit decent photoconductivity as well as broad-spectrum optical absorption with an Eg value of ∼1.35 eV. A molecular reaction mechanism is rationally proposed and evidenced for forming Sb2Se3, which is related to the thermal decomposition of selenocyanate (SeCN−) anions through the cleaving of Se–CN bonds to elemental Se(0), followed by its reduction to Se2− anions. Our work using KSeCN offers an alternative method for the synthesis of metal selenides with desirable nanostructures and properties.
研究领域:
材料科学
·
纳米技术
·
半导体物理
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Jing Zhou,Xintong Zhang,Hanbo Chen,Zheqing Tang,Dan Meng,Kailin Chi,Yongmao Cai,Gengxin Song,Yu Cao,Ziyang Hu
The electron transport layer (ETL) of Sb 2 Se 3 thin film solar cells is not only responsible for electron extraction and transport but also manipulates the orientation of the Sb 2 Se 3 photoactive layer’s growth, which is crucial for performance optimization. In this study, the dual functionality of solution-processed SnO 2 film treated with CdCl 2 was achieved as the ETL in Sb 2 Se 3 solar cells. The CdCl 2 treatment simultaneously improves the efficacy of the SnO 2 ETL and induces the longitudinal growth of Sb 2 Se 3 grains. These two aspects effectively enhance electron transport and/or extraction, thereby reducing the charge recombination, which contributes to the improvement of all device parameters. The results demonstrate that CdCl 2 treatment optimizes the interface properties of the SnO 2 ETL, providing a facile and effective method for enhancing the performance of the Sb 2 Se 3 solar cell.
研究领域:
材料科学
·
光伏技术
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2023
·
IF 3.8
Xiaoqian Jing,Yang Xu,Zizheng He,Dongyun Li,Rui Wang,Minjia Wang
Sb 2 Se 3 is a promising light-absorbing material with low cost and good photocatalytic activity. In this paper, Sb 2 Se 3 thin films doped with zinc (Zn) were deposited on ultra-white glass by hydrothermal method, using ZnCl 2 , sodium selenate and antimony potassium tartrate as raw materials. And the photocatalytic activity was evaluated by photocatalytic decolorization reaction with methylene blue (MB) solution. The results showed that the highest photocatalytic activity was displayed when Zn 2+ was doped with 0.10 mmol, and its degradation rate of methylene blue was 1.66 times higher than that of pure Sb 2 Se 3 . Zn 2+ doped Sb 2 Se 3 film can effectively inhibit the recombination of electron-hole pairs, thereby improving the optical activity. According to the free radical capture experiment, photogenerated holes (h + ) and superoxide radicals (·O 2− ) are the decisive active substances in the photocatalytic process. This method provides a reliable way for transition metal ions doped metal selenides to degrade organic dyes.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2013
·Vol. 2
·期 2
·240-244
·
IF 0
Yong-Qiang Liu,Meng Zhang,Feng-Xia Wang,Ge-Bo Pan
A facile and rapid microwave-assisted method was developed to synthesize uniform single-crystalline Sb2Se3 nanowires in high yields. The as-prepared Sb2Se3 nanowires were directly used for fabricating prototype photodetectors. The device displayed a remarkable response to light intensity with an on/off ratio larger than 150, short response/recovery times (0.2/1.2 s), and long-term durability. The high sensitivity and robust environmental stability of the devices demonstrate the bright prospects for Sb2Se3 nanowires in highly efficient photodetectors for practical use.
研究领域:
材料科学
·
纳米技术
·
光电材料
✓ 已验证
DOI
CHINESE CHEMICAL LETTERS
·
2019
·
IF 3.839
Yan Dong,Yuezhan Feng,Jiwei Deng,Pengbin He,Jianmin Ma
Antimony-based materials have become promising anodes within lithium-ion batteries (LIBs) due to their low cost and the high theoretical capacity. However, there is a potential to further enhance the electrochemical performance of such antimony-based materials. Herein, Sb 2 Se 3 @C nanofibers (Sb 2 Se 3 @CNFs) are designed and obtained via a novel electrospinning method. Upon electrochemically testing as an anode within LIBs, the Sb 2 Se 3 @CNFs (annealed at 600 °C) delivers a remarkably good cycling performance of 625 mAh/g at 100 mA/g after 100 cycles. Moreover, it still remains at 490 mAh/g after 500 cycles with an applied current density of 1.0 A/g. The excellent performance of the Sb 2 Se 3 @CNFs can be attributed to the fact that the N-doped C matrices not only remit the volume expansion of materials, but also enhance the electrical and ionic conductivity thusly increasing the lithium-ion diffusion. The obtained Sb 2 Se 3 @CNFs are promising anode for LIBs in the future.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Junli Wang,Shaopeng Li,Tingting Wang,Fan Guan,Lijun Zhao,Longhua Li,Junhao Zhang,Guanjun Qiao
Semiconductor-sensitized TiO2 thin films with long-term air stability are attractive for optoelectronic devices and applications. Herein, we demonstrate the potential of the TiO2 thin film (∼800 nm in thickness) sensitized with a Sb2Se3 layer (∼350 nm) grown from solution spin coating and processed by annealing recrystallization at 300 °C for high-performance optical detection. The type-II band alignment, p-Sb2Se3/n-TiO2 heterojunction, and narrow band gap of Sb2Se3 (∼1.25 eV) endow the film photodetector with a large photocurrent, high switching stability and on/off ratio (>103), and fast response speeds (<20 ms) under the broadband visible–near-infrared irradiation in a zero-bias self-powered photovoltaic mode. In particular, the photodetector shows notable resistance to oxidation and moisture for long-term operation, which is linked to the modest surface oxidation (Sb–O) of Sb2Se3, as verified by X-ray photoelectron spectroscopy. The first-principles calculations show that a low and medium concentration of oxygen substitution for Se (OSe) and oxygen interstitial (Oi) with negative formation energies can lead to such a moderate surface oxidation but do not generate impurity states or just introduce a shallow-level acceptor state in the electronic structures of Sb2Se3 without degrading its optoelectronic performance. Our theoretical results offer a rational explanation for the air-stable and oxidation/moisture-resistant characteristics in moderately oxidized Sb2Se3 and may shed light on the surface oxidation–property relationship studies of other nonoxide semiconductor-sensitized devices.
研究领域:
材料科学
·
光电材料
·
半导体物理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTAL GROWTH & DESIGN
·
2025
·
IF 3.4
Yiran Wu,Jinyang Liu,Yulong Lian,Yuzhen Lian,Hongbing Cai
One-dimensional multisegment nanostructures, with their unique physicochemical properties and broad application potential in optoelectronics, have garnered significant attention. However, current synthesis methods face challenges, including strict catalyst requirements, limited control over segment dimensions, and difficulties in achieving scalable and precise fabrication. These obstacles hinder the exploration of size-dependent physical properties and advanced applications. Here, we present a catalyst-free incommensurate heteroepitaxial growth method to synthesize Sb2Se3 multisegment homostructured nanowires. Using dashed-line-like nanowires synthesized in the first step as templates, our method achieves precise control over the segment number (three to nine) and diameter, forming homostructures with distinct physical properties. The Sb2Se3 nanowires grow along the [001] direction, and their anisotropic characteristics were confirmed by angle-resolved polarization Raman spectroscopy (ARPRS). The Sb2Se3 nanowires were applied in polarization-sensitive photodetectors, demonstrating a high dichroic ratio (∼1.7) and strong anisotropic photocurrent responses. This approach provides a versatile and scalable solution for fabricating multisegment nanostructures with tailored properties, paving the way for the further exploration of size-dependent phenomena and their integration into advanced anisotropic optoelectronic devices.
研究领域:
材料科学
·
纳米技术
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2016
·Vol. 163
·期 10
·B533
·
IF 3.014
Sheying Dong,Miao Li,Dandan Zhang,Liang Zhang,Guo Zhang
Rod-like Sb2Se3 material prepared by a simple hydrothermal method was dispersed with ionic liquid (IL) to construct Sb2Se3/IL/GOx-CPE and Sb2Se3/IL/Cyt c -CPE for the detection of glucose and nitrate (NO2−), respectively. Especially, the effect of preparation condition like reaction time on electrochemistry performance was discussed. The proposed biosensor showed excellent performances with wide linear range of 8–1700 μM and the detection limit of 2.0 μM for glucose, and 5–5300 μM and 1.2 μM for NO2−, respectively. Moreover, in the chain-type crystal structure of Sb2Se3, strong covalent bond along the c crystallographic axis and much weaker van der Waals bonding between the chains of the layered structure were existed, which facilitated the formation of rod-like Sb2Se3. This was why the rod-like Sb2Se3 could be used to immobilize GOx and Cyt c. With those remarkable advantages such as low cost, satisfactory reproducibility, stability and reliability, the V-VI binary chalcogenides such as rod-like Sb2Se3 material could be an option sensing platform for the extensive application of biosensors.
研究领域:
材料科学
·
电化学
·
生物传感
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2015
·Vol. 8
·期 4
·2277-2283
·
IF 7.394
Shuo Chen,Xvsheng Qiao,Fengxia Wang,Qun Luo,Xianghua Zhang,Xia Wan,Yang Xu,Xianping Fan
An effective colloidal process involving the hot-injection method is developed to synthesize uniform single-crystalline Sb2Se3 nanorods in high yields. The photoconductive characteristics of the as-synthesized Sb2Se3 nanorods are investigated by developing a film-based photodetector and this device displays a remarkable response to visible light with an “ON/OFF” ratio as high as 50 (with an incident light density of 12.05 mW cm−2), short response/recovery times and long-term durability. To overcome the challenge of the intrinsic low electrical conductivity of Sb2Se3, hybrid nanorods with the Sb2Se3/AgSbSe2 heterojunction structure having a type-II band alignment are firstly prepared. The electric current of the photodetector based on the Sb2Se3/AgSbSe2 hybrid nanorod film has been significantly increased both in the dark and under light illumination. The responsivity of the photodetector based on the Sb2Se3/AgSbSe2 hybrid nanorod film is about 4.2 times as much as that of the photodetector based on the Sb2Se3 nanorod film. This improvement can be considered as an important step to promote Sb2Se3 based semiconductors for applications in high performance photodetectors.
研究领域:
材料科学
·
纳米技术
·
光电子学
✓ 已验证
DOI
高影响因子
Energies
·
2024
·Vol. 17
·期 2
·406
·
IF 3
Musa Abubakar Bilya,Aleksey Nabok,Yashodhan P. Purandare,Ashfaque E. Alam,I. M. Dharmadasa
In this study, a two-electrode electrodeposition technique was employed to grow thin films of antimony selenide (Sb2Se3) on glass/fluorine-doped tin oxide (FTO) substrates. The highest quality thin films were consistently obtained within the range of 1600 mV to 1950 mV. Subsequent electrodeposition experiments were conducted at discrete voltages to produce various layers of thin films. Photoelectrochemical cell (PEC) measurements were performed to characterize the semiconductor material layers, leading to the identification of both p-Type and n-Type conductivity types. Optical absorption spectroscopic analysis revealed energy bandgap values ranging from 1.10 eV to 1.90 eV for AD-deposited Sb2Se3samples and 1.08 eV to 1.68 eV for heat-treated Sb2Se3samples, confirming the semiconducting nature of the Sb2Se3material. Additionally, other characterization techniques, including X-ray diffraction analysis, reveal that the AD-deposited layers are almost amorphous, and heat treatment shows that the material is within the orthorhombic crystalline system. Heat-treated layers grown at ~1740 mV showed highly crystalline material with a bandgap nearing the bulk bandgap of Sb2Se3. Raman spectroscopy identified vibrational modes specific to the Sb2Se3phase, further confirming its crystallinity. To explore the thin-film morphology, Scanning Electron Microscopy (SEM) was employed, revealing uniformly deposited material composed of grains of varying sizes at different voltages. Energy Dispersive X-ray analysis (EDX) confirmed the presence of antimony and selenium in the material layers.
研究领域:
材料科学
·
半导体物理
·
太阳能电池
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）