ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 34
·期 8
·2310124
·
IF 19
Xinyu Li,Chengfeng Ma,Naiyun Liu,Chunxu Xiang,Shuxia Wei,Weibo Yan,Wei Huang,Hao Xin
Solution-processed chalcopyrite thin film solar cells have made great progress but still lag behind the vacuum-based ones due to inferior absorber quality and non-ideal interfaces. Here, plasma treatment of the molybdenum (Mo) substrate is reported to modify the back interface and improve the efficiency of solution-processed copper indium sulfoselenide (CuIn(S,Se) 2 , CISSe) solar cells. The results show plasma treatment oxides the surface Mo/MoO 2 to high oxidation oxides MoO 3-x (0 ≤ x < 1). The higher surface polarity greatly improves the wettability of the substrate to the precursor solution and results in formation of more compact and uniform precursor film, which grows to void-free larger grains absorber film with better adhesion to the substrate. In addition, the much higher chemical stability of MoO 3-x than Mo significantly reduces the thickness of high resistive MoSe 2 layer. The improved absorber quality and back interface property decreases charge carrier recombination in the absorber and back contact interface, resulting in 14.53% efficiency solution-processed CISSe solar cell, which is improved by 13% compared to device without plasma treatment.
研究领域:
材料科学
·
可再生能源
·
物理化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Shouning Yang,Ran Guo,Shuai Zhang,Fangxiao Li,Jinliang Liu,Huayan Yang
The integration of photothermal therapy (PTT), photodynamic therapy (PDT), and immunotherapy represents a promising strategy for enhancing anticancer efficacy. However, current approaches often rely on cocktail-based nanoplatforms that load multiple agents, which complicates preparation and raises concerns about stability and potential side effects. Therefore, developing structurally simple, easily synthesized nanomaterials with inherent multifunctionality is highly desirable. In this work, we report the first synthesis of biocompatible heterostructures. The interfacial contact within these heterostructures facilitates efficient charge carrier separation, enabling the simultaneous activation of photothermal conversion and photodynamic functionalities under near-infrared (NIR) irradiation. Beyond these photophysical effects, the obtained Bi₂Se₃@BiSe nanosheets effectively polarize M0 macrophages toward the tumor-suppressive M1 phenotype, a process which in turn promotes robust immunogenic cell death. Collectively, this work establishes Bi₂Se₃@BiSe as a versatile nanoplatform for triple-modal cancer therapy, seamlessly integrating PTT, PDT, and immunotherapy, thus proposing a novel paradigm for developing next-generation combinatory cancer therapeutics.
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产品关联
DOI
PubMed
高影响因子
Solar RRL
·
2020
·Vol. 4
·期 9
·2000220
·
IF 7.527
Kanghua Li,Yue Lu,Xiaoxing Ke,Sen Li,Shuaicheng Lu,Chong Wang,Siyu Wang,Chao Chen,Jiang Tang
Antimony chalcogenides (including Sb 2 S 3 , Sb 2 Se 3 , and Sb 2 (S,Se) 3 alloy) have emerged as promising solar absorber materials. Notably, the Sb 2 (S,Se) 3 alloy possesses continuously tunable bandgap from 1.1 to 1.7 eV, which covers the ideal bandgap for single-junction photovoltaics governed by the Shockley–Queisser theory. Moreover, the bandgap gradient provides effective ways for photogenerated carriers collection and has the potential for high-efficient Sb 2 (S,Se) 3 alloy solar cells. Herein, a V-shaped distributional bandgap in Sb 2 (S,Se) 3 solar cells is reported through a simple dual-source vapor transport deposition process, enabling the synergetic increase of the open-circuit voltage ( V OC ) and short-circuit current ( J SC ). Through careful optimization, a power conversion efficiency of 7.27% under AM1.5G illumination is obtained, with V OC and J SC of 0.46 V and 29.6 mA cm −2 , respectively. This V-shaped bandgap engineering provides an effective method to enhance the device performance and can be extended to other chalcogenide thin-film solar cells such as Sn–X, Ge–X, Cu–Sb–X (X = S and Se), and so on.
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DOI
高影响因子
SOLID STATE SCIENCES
·
2016
·
IF 2.041
Long Shi,Dajiang Mei,Jingli Xu,Yuandong Wu
Three new bismuth-based compounds, Bi 2 O(XO 4 )(IO 3 ) 2 (X = S, Se, Cr) have been synthesized by hydrothermal method and characterized by single-crystal X-ray diffraction. Title compounds crystallize in the monoclinic space group P 2 1 /n (No.14) with lattice parameters: a = 7.2391(5), b = 17.9074(12), c = 7.7964(5) Å, β = 109.6521(15) °, Z = 4 for Bi 2 O(SO 4 )(IO 3 ) 2 ; a = 7.2665(4), b = 18.0115(10), c = 7.9310(5) Å, β = 109.7480(10) °, Z = 4 for Bi 2 O(SeO 4 )(IO 3 ) 2 ; and a = 7.2708(6), b = 17.9967(14), c = 7.8998(6) Å, β = 109.799(2) °, Z = 4 for Bi 2 O(CrO 4 )(IO 3 ) 2 , respectively. All compounds exhibit three-dimensional frameworks that are composed of [Bi 4 O 2 ] 8+ clusters, [IO 3 ] − and [XO 4 ] 2− (X = S, Se, Cr) groups. Bi atoms occur in two different coordination types, showing the stereochemical influence of the Bi 3+ lone electron pair. Title compounds were characterized by infrared spectra, solid state UV–vis–NIR diffuse reflectance spectroscopy and thermogravimetric analysis.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Siqi Xiang,Yihan Liang,Mengcheng Zhou,Xinfang Zhang
Thermoelectric materials based on Cu 1.8 S are not hampered by electric-field-driven degradation in real applications, but their high-temperature applications are problematic owing to their tendency to oxidize or spontaneously decompose. Here, we reveal that Cu 1.8 S powder is gradually oxidized to form a mixture of Cu 2 O, Cu(SO 4 ), and Cu 2 O(SO 4 ) at high temperatures under air. Although a dense oxide film is formed on the surface of the sintered Cu 1.8 S block at high temperature, hindering the oxidation process , the brittle oxide film fails to inhibit the spontaneous decomposition of the Cu 1.8 S block into the Cu 1.96 S phase and S vapor at high temperatures. Thus, Cu 1.8 S thermoelectric materials are unsuitable for applications above 300 °C in air. To address this issue, we partially replaced S atoms with Se; the sintered Cu 1.8 S 0.8 Se 0.2 blocks exhibited significantly increased anti-oxidation and anti-decomposition capacities in air. In addition, we found that the thermoelectric figure of merit of the sintered Cu 1.8 S 0.8 Se 0.2 block was 47% higher than that of traditionally prepared, pure Cu 1.8 S at 450 °C.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Yu Xiao,Wei Li,Cheng Chang,Yuexing Chen,Li Huang,Jiaqing He,Li-Dong Zhao
We report n-type PbTe with a maximum ZT ∼1.2 at 673 K and an average ZT ave ∼0.84 at 300–823 K, which was achieved through a Sn and Se co-alloying approach. We find that the lattice thermal conductivity can be largely reduced through introducing Se in Te sites, and the power factor can be enhanced through introducing Sn in the Pb sites. Combining two strategies via Se and Sn co-alloying in PbTe, results show that the lattice thermal conductivity at 300 K can be reduced from ∼3.1 Wm −1 K −1 to ∼1.2 Wm −1 K −1 after alloying 15% Se, which is consistent with the Callaway model. Meanwhile, we find that both carrier concentration and mobility can be enhanced through alloying small amount of Sn, which are supported by DFT calculation with emphasis on the defect formation energies . The improvement on electrical conductivity elucidates an enhanced power factor at 300 K increasing from ∼6.4 μWcm −1 K −2 to ∼14.6 μWcm −1 K −2 . Through synergistically optimizing electrical and thermal transport properties of n-type PbTe via Sn and Se co-alloying, the ZT value is distinctly enhanced to 1.2 at 673 K, and the average ZT ave value is improved by ∼35%, from ∼0.62 in PbTe 0.997 I 0.003 to ∼0.84 in Pb 0.995 Sn 0.005 Te 0.847 Se 0.15 I 0.003 , ensuring a high maximum thermoelectric conversion efficiency ∼10.7%.
研究领域:
材料科学
·
热电学
·
固体物理
·
能量转换材料
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Shuo Wang,Ruixin Ma,Chengyan Wang,Shina Li,Hua Wang
This report details the development of a simple, non-vacuum, mild route for the fabrication of CFTS and CFTSSe thin films. This work investigates the synthesis of CFTS powder using solid-phase synthesis. Subsequently, the stable colloidal ink was prepared and blade-coated onto Mo-coated substrates followed by an annealing process under an Ar atmosphere. Thin films of this material were converted into CFTS and CFTSSe thin films by sintering and exposing them in sulfur or selenium vapor. The structures of the CFTS and CFTSSe were observed to be consistent with the stannite phase. The crystal lattice parameters of the CFTS and CFTSSe post-annealed films were determined by their respective X-ray diffraction patterns and Raman scattering measurements. The band gaps of CFTS and CFTSSe films, as determined by UV–vis absorption, were estimated to be 1.32 eV and 1.22 eV with an error of ±0.02 eV. The corresponding CFTS and CFTSSe films showed a clear photoresponse without current transients, which is promising for future photovoltaic applications.
研究领域:
材料科学
·
光伏技术
·
半导体薄膜
·
固态化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Huanghui Nie,Han Wang,Jiamu Cao,Xuesheng Qin,Rongji Zhang,Yuewu Huang,Weiqi Wang,Xinlian Yang,Qijun Yang,Xiao Wang,Hongyuan Wang,Yufeng Zhang
As a topological insulator material, bismuth selenide (Bi₂Se₃) exhibits unique physical properties and a narrow bandgap, offering significant potential for applications in next-generation optoelectronic devices. Nevertheless, its narrow bandgap characteristic causes transient carriers generated by photoexcitation to relax rapidly, hindering the realisation of ideal photodetection performance and impeding practical applications. This study addresses this challenge by combining a simple, cost-effective synthesis method with bandgap engineering. By constructing an internal electric field at the heterojunction interface, we effectively suppress carrier recombination, facilitating rapid charge separation and collection. The resulting self-powered photodetector achieves a responsivity of 48.3 mA/W, a specific detectivity of 9.42 × 10 11 Jones, and a millisecond-range response time under 808 nm illumination. Furthermore, the device possesses broadband detection capability spanning the visible to infrared spectrum. Moreover, the device functions as a signal receiver for precise near-infrared optical communication at zero bias, demonstrating potential for application in the field of optical communications. In view of the simple, scalable and silicon-compatible fabrication method, the fabrication of Bi₂Se₃/Si photodetectors holds significant application potential in the fields of rapid broadband detection and optical communications, and also offers novel insights for the construction of other silicon-based detectors.
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Qiuju Xu,Heng Liu,Wenyan Du,Renming Zhan,Linyu Hu,Shujuan Bao,Chunlong Dai,Feng Liu,Maowen Xu
The low Se loading, volumetric expansion and polyselenide shuttling between cathode and anode are major factors to limit the further development of Na-Se batteries . To overcome above issues, metal-organic complex derived hierarchical porous carbon (HPC) was synthesized as host matrix for Se via a facile synthesis combined with annealing treatment. The unique hollow structure holds numerous micropores and mesopores for Se loading to form Se-HPC composite. The Se-HPC electrode shows outstanding rate capabilities of 330 and 260 mA h g -1 at 1 C and 5 C, respectively. It also exhibits a stable cycling performance for 1000 cycles at 2 C with a small capacity decay rate of 0.04% per cycle. Such good performance demonstrates the viability of Na-Se batteries with high Se loading of 56%, which may be attributed to the unique hollow structure of HPC with Se encapsulated within micropores and mesopores. This attractive structure not only promotes electrolyte infiltration and electron transfer but also provides additional buffer space to buffer volumetric expansion of Se and suppress polyselenides dissolution in carbonate electrolyte during cycling.
研究领域:
储能
·
材料科学
·
电化学
·
电池技术
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DOI
高影响因子
Materials Today Energy
·
2017
·
IF 0
Hui Deng,Shengjie Yuan,Xiaokun Yang,Fensha Cai,Chao Hu,Keke Qiao,Jian Zhang,Jiang Tang,Haisheng Song,Zhubing He
Inorganic Sb 2 S 3 thin film solar cells show wide application prospects in low cost, non-toxicity and high stability solar cells comparing with well-developed CIGS , CdTe and organohalide perovskite materials. The present work successfully fabricated Sb 2 S 3 film utilizing rapid thermal evaporation (RTE) method. By optimizing the crystal growth technique, smooth and non-pinhole Sb 2 S 3 film was deposited on compact TiO 2 substrate. The corresponding planar TiO 2 /Sb 2 S 3 solar cells without hole transport material (HTM) assistance achieved an efficiency of 2.5%. To eliminate S-shape J-V curves and improve the fill factor, the as-deposited Sb 2 S 3 film was further annealed in selenium atmosphere. The efficiency and fill factor of Se-atmosphere annealed Sb 2 S 3 devices were improved to 3.2% and 55%, respectively. The device improvement mechanism of Se-annealing process were systematically illustrated by cryogenic measurements, impedance analysis and capacitance-voltage characterizations. The post-annealing could help to improve junction quality, passivate absorber defects and decrease back contact barrier. The Se-atmosphere annealed Sb 2 S 3 devices could stand continuous one sun illumination for 400 h and the efficiency was almost the same. After storing in air for six months, the average efficiencies still hold more than 90% of initial value . The present developed environment-friendly stable devices and efficient treatment technique were expected to enrich the research of thin film solar cell.
研究领域:
材料科学
·
光伏技术
·
无机半导体
·
薄膜太阳能电池
·
器件物理
✓ 已验证
DOI
Nano Energy
·
2020
·
IF 16.602
Nan Zhang,Haojie Gu,Keyu Lu,Shimeng Ye,Wanghuai Xu,Huanxi Zheng,Yuxin Song,Chaoran Liu,Jiwei Jiao,Zuankai Wang,Xiaofeng Zhou
Harvesting water kinetic energy is a prospective way to obtain sustainable power. However, conventional water energy harvesting technologies are restricted by specific operating locations and fabrication materials. These techniques urgently need to be improved and supplemented with new methods. Here, we report a novel and universal single electrode droplet-based electricity generator (SE-DEG) that allows converting water droplet kinetic energy into electricity power on any surfaces of artificial or natural materials such as PTFE , glass, wood, aloe, cicada wing, stone and etc. This functionality is endowed by a special configuration characterized by the location of the electrode on the top of dielectric material rather than underlying as in the conventional triboelectric nanogenerator (TENG). Such special configuration can effectively harness the triboelectric charges generated without going through the electrostatic induction process between bottom electrode and the surface in the case of TENG. We envision that SE-DEGs represent a new dimension in ability to harvest abundant hydrodynamic energy everywhere.
研究领域:
能量收集
·
纳米发电机
·
可再生能源
·
材料科学
·
流体力学
✓ 已验证
DOI
高影响因子
Journal of Biobased Materials and Bioenergy
·
2020
·Vol. 14
·期 5
·657-663
·
IF 1.126
Liu Jie,Wu Lichao,Tan Yimin
Se-enriched camellia oil has received increasing attention because it can improve the Se intake of diet for Se deficiency areas and has a wide spectrum of biological effects. Six main cultivars of camellia oil in Guangxi, including Camellia oleifera cenxiruanzhi 2 (CR2), CR3,
C. oleifera xianglin 4 (XL4), XL40, C. oleifera changlin 1 (CL1), and CL210, were selected for fertilization experiment to produce Se-enriched camellia oil and investigated the effect of Se enrichment on quality. The Se content in camellia oil of six varieties was significantly increased
by Se fertilizer application. CR2 had the maximum Se content and raise ratio compared to CK, which was 0.87 mg kg−1 and fourfold, respectively. The Se contents in XL1, XL210, CR3, CL4, and CL40 improved by 2.14-, 2.77-, 3.58-, 2.56-, and 3.79-fold, respectively. Se fertilizer
reduced the acid and peroxide values and increased the squalene and tocopherol contents. The acid value decreased by 38.29%–61.30%, the peroxide value decreased by 20.66%–61.79%, the tocopherol content increased by 7.76%–32.78%, and the squalene content increased by 13.53%–77.39%.
The quality indices were significantly different among camellia oil varieties. Principal component analysis showed that CR2 obtained the highest score by comprehensive evaluation. Se fertilization, particularly for CR2 species, can significantly increase the contents of Se as well as functional
components, such as squalene and tocopherol, and thus improve the quality of camellia oil
研究领域:
植物学
·
营养学
·
食品科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）