DALTON TRANSACTIONS
·
2015
·Vol. 44
·期 16
·7364-7372
·
IF 4.197
Cheng-Feng Du,Jian-Rong Li,Mei-Ling Feng,Guo-Dong Zou,Nan-Nan Shen,Xiao-Ying Huang
Presented are the syntheses, characterizations and properties of a series of selenidostannate compounds directed by metal–amine complex (MAC) cations and/or [Bmmim]+ (Bmmim = 1-butyl-2,3-dimethylimidazolium). Mixtures of the ionic liquid (IL) (Bmmim)Cl and amines, such as ethylenediamine (en) and diethylenetriamine (dien), in various ratios were used to ionothermally/solvothermally prepare four selenidostannates, namely, [Mn(en)3]Sn3Se7 (1), [Mn(dien)2]Sn3Se7·H2O (2), (Bmmim)3[Mn(en)3]2[Sn9Se21]Cl (3) and (Bmmim)6[Mn(dien)2]2Sn15Se35 (4). Single-crystal X-ray diffraction analyses revealed that these compounds exhibit lamellar anionic [Sn3Se7]n2n− structures. [Sn3Se7]n2n− layers in all 1–4 possess a {63} net, considering [Sn3Se10] semi-cube unit as a 3-connected node; however, diverse multi-membered rings exist there. In compounds 1 and 2, all the [Sn3Se10] units are 3-connected nodes interlinking with each other via edge-sharing two Se atoms to produce six-membered rings. However, in compound 3, the insertion of two [Sn3Se9] units into a six-membered ring results in a novel eight-membered heart-shaped ring, which has never been observed before in the family of chalcogenidostannates. More interestingly, the [Sn3Se7]n2n− layer in compound 4 consists of mixed six- and eight-membered rings. The phase composition is strongly dependent on the ratio of IL to MAC in the syntheses, e.g., 1 and 2 were obtained with IL : MAC ratios less than 3 : 1 and 4 : 1, while 3 and 4 were obtained when the ratios were increased to 4 : 1 and 5 : 1, respectively. The structural variation from 1 to 4 clearly indicates the competitive and synergistic effects between MAC and IL cation on the formation of lamellar selenidostannates. A synthetic approach via varying the ratio of IL to MAC cation as solvent and structure-directing agent will be attractive in the synthesis of novel chalcogenidometallates.
研究领域:
材料化学
·
晶体学
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DOI
高影响因子
DALTON TRANSACTIONS
·
2016
·Vol. 45
·期 23
·9523-9528
·
IF 4.177
Cheng-Feng Du,Nan-Nan Shen,Jian-Rong Li,Min-Ting Hao,Zi Wang,Chu-Chu Cheng,Xiao-Ying Huang
Ionothermal syntheses, characterization and properties of two selenidostannate compounds with two- or three-dimensional (D) skeletons by utilizing the synergistic structure-directing effects of the ionic liquid (IL) [Bmmim]Cl (Bmmim = 1-butyl-2,3-dimethylimidazolium) and in-situ generated metal–amine complexes (MACs), namely, 2D-(Bmmim)2[Ni(teta)(en)][Sn3Se7]2 (1, teta = triethylenetetramine, en = ethylenediamine) and 3D-(Bmmim)1.5(dienH)0.5Ni(dien)2[Sn4Se9]2 (2, dien = diethylenetriamine) are presented. Single-crystal X-ray diffraction analyses revealed that compound 1 possesses a lamellar anionic [Sn3Se7]n2n− structure comprising a large ten-membered ring with a window size of 24.85 × 13.38 Å when considering the [Sn3Se4] semicube as a member. While 2 features a 3D [Sn4Se9]n2n− framework with orthogonally intersecting channels where the three different types of cations are filled. The successful isolation of these two compounds demonstrated again that the mixed SDA strategy is promising for the synthesis of novel crystalline selenidostannates.
研究领域:
材料化学
·
晶体学
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DOI
PubMed
高影响因子
IEEE ELECTRON DEVICE LETTERS
·
2024
·
IF 4.1
Xiyu Jia,Weishuai Duan,Mingchen Xu,Gaoning Fan,Pengyu Zhou,Yonghui Zhang,Hongxing Zheng,Mengjun Wang,Chao Fan
Near-violet (NV) detectors based on two-dimensional materials have attracted much attention due to their atomic-scale thickness and various band gaps. Among them, tin disulfide (SnS
2
) has demonstrated significant potential for high-performance NV detectors due to its unique photoelectric properties. However, SnS
2
-based NV detector still have drawbacks such as low responsivity and high dark current. In this work a tri-layer van der Waals heterojunction of tin disulfide/h-boron nitride/tin selenide (SnS
2
/h-BN/SnSe) is proposed. The detector based on such tri-layer heterojunction exhibits an excellent self-powered detection performance to 405-nm NV illumination with a responsivity of 1.5 AW
-1
, a low dark current of 2.6 pA, and a high fill factor of 51.8%, superior to detectors based on SnS
2
/SnSe bi-layer heterojunctions and most other two-dimensional materials. This study provides an efficient optimizing strategy for SnS
2
-based self-powered detector, thereby offering an opportunity for implementing innovation in NV detectors.
研究领域:
材料科学
·
光电子学
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DOI
高影响因子
Chemistry-An Asian Journal
·
2016
·Vol. 11
·期 10
·1555-1564
·
IF 4.592
Cheng-Feng Du,Nan-Nan Shen,Jian-Rong Li,Min-Ting Hao,Zi Wang,Xiao-Ying Huang
Graphical MAC it happen : Presented is a study of the synergistic structure-directing effect of metal–amine complexes (MACs) with different chelating polyamine ligands and imidazolium-based ionic liquid (IL) cations. For the first time, a layered selenidostannate with an asymmetric eight-membered ring, an organic-decorated layered selenidostannate, and a 3D selenidostannate with both the MAC and IL cations as structure-directing agents and counterions are obtained. en=ethylenediamine, teta=triethylenetetramine, tepa=tetraethylenepentamine, 1,2-pda=1,2-diaminopropane. Presented are the ionothermal syntheses, characterizations, and properties of a series of two- and three-dimensional selenidostannate compounds synergistically directed by metal–amine complex (MAC) cations and ionic liquids (ILs) of [Bmmim]Cl (Bmmim=1-butyl-2,3-dimethylimidazolium). Four selenidostannates, namely, 2D-(Bmmim) 3 [Ni(en) 3 ] 2 [Sn 9 Se 21 ]Cl ( 1 , en=ethylenediamine), 2D-(Bmmim) 8 [Ni 2 (teta) 2 (μ-teta)]Sn 18 Se 42 ( 2 , teta=triethylenetetramine), 2D-(Bmmim) 4 [Ni(tepa)Cl] 2 [Ni(tepa)Sn 12 Se 28 ] ( 3 , tepa=tetraethylenepentamine), and 3D-(Bmmim) 2 [Ni(1,2-pda) 3 ]Sn 8 Se 18 ( 4 , 1,2-pda=1,2-diaminopropane), were obtained. Single-crystal X-ray diffraction analyses revealed that compounds 1 and 2 possess a lamellar anionic [Sn 3 Se 7 ] n 2 n − structure comprising distinct eight-membered ring units, whereas 3 features a MAC-decorated anionic [Ni(tepa)Sn 12 Se 28 ] n 6 n − layered structure. In contrast to 1 – 3 , compound 4 exhibits a 3D open framework of anionic [Sn 4 Se 9 ] n 2 n − . The structural variation from 1 to 4 clearly indicates that on the basis of the synergistic structure-directing ability of the MACs and ILs, variation of the organic polyamine ligand has a significant impact on the formation of selenidostannates.
研究领域:
材料科学
·
无机化学
✓ 已验证
DOI
PubMed
高影响因子
Small
·
2024
·Vol. 20
·期 49
·2405742
·
IF 13
Jinhua Hu,Xin Yao,Keyu Han,Yumeng Ge,Shiqing Xu,Gongxun Bai
Solar-powered water evaporation as a clean and abundant renewable energy-efficient desalination technology provides a promising strategy to solve the shortage of freshwater resources. However, the development and application of solar vapor technology are hindered by the relatively low near-infrared photothermal conversion efficiency of existing materials and the lack of effective improvement strategies. In this work, the conductivity characteristics of 2D semiconductors are capitalized on the high visible light absorption and ultra-low thermal. Specifically, rare-earth ion dopants into SnSe nanosheets, significantly boosting their near-infrared photothermal conversion efficiency and solar water evaporation performance are introduced. Remarkably, the photothermal conversion efficiency of the doped SnSe nanosheets surged from 51.56% to 82.11%, surpassing many previously reported photothermal materials. Furthermore, leveraging these nanosheets with enhanced photothermal conversion efficiency, a solar interfacial evaporation system is constructed. The evaporation rate of 2.17 kg m −2 h −1 and the efficiency of 96.5% can be achieved at one solar irradiance, and it also has good salt-resistance properties. The findings demonstrate the potential of rare earth ion-doped 2D semiconductor nanosheets in solar water evaporation, paving the way for future sustainable desalination solutions.
研究领域:
材料科学
·
能源技术
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jie Huang,Jun-Cai Zhang,Jia-Nan Bao,Wei-Qin Huang,Hu Li,Li-Mei Lin,Zhi-Ping Huang,Shui-Yuan Chen,Gui-Lin Chen
Tin selenide (SnSe), as a direct bandgap (1.1–1.3 eV) photovoltaic absorber material, has a theoretical power conversion efficiency comparable to commercial thin-film solar technologies. However, the efficiency of experimentally fabricated SnSe solar cells is significantly lower than the theoretical value, mainly constrained by two major bottlenecks: (1) the bulk defects leading to carrier recombination and (2) the bandgap mismatch at the interface. Additionally, the environmental toxicity of the CdS and its parasitic absorption of short-wavelength light also limit the sustainable development. This study proposes and systematically investigates the all-inorganic structure of FTO/Zn(O,S)/SnSe/Carbon. Replacing traditional CdS with Zn(O,S) can achieve tunable bandgaps and eliminate Cd toxicity. Through SCAPS-1D simulation, the thickness and carrier concentration of each functional layer are optimized, and the influences of bulk defect density, interface defect density, and resistance on device performance are analyzed. Meanwhile, the S content in Zn(O,S) is adjusted, and the sulfur enrichment (S content of 70%) induces the best conduction band offset (ΔEc = 0.05 eV). The resulting optimal device exhibits an efficiency of 22.46%, Voc = 0.90 V, Jsc = 30.06 mA/cm2, and FF = 83.39%. This work establishes a universal paradigm combining nontoxic material selection (Zn(O,S)/carbon), interface thermodynamic control, and defect passivation strategies, paving the way for the commercialization of sustainable thin-film solar cells.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Qi Pei,Zhi-hua Yuan,Bing-qian Zhang,Bao-yi Chen,Yang Wang,Shuai-nan Wang,Rong-nan Guo,Dong Wang
Defects strongly influence the mechanical, optical, and particularly the electrical properties of two-dimensional (2D) materials and they may be engineered to enhance their performance. Herein, 2D S-doped SnSe (SnSe 1 − x S x , x = 0, 0.25, 0.5, 0.75) is obtained via chemical vapor deposition (CVD) and used to fabricate Ag/SnSe 1− x S x /Pt memristors. The density of doping-induced defects increases and then decreases with the increasing S content ( x ), strongly impacting the electrical properties of SnSe 1− x S x . The memristor switching mechanism changes from anion (vacancy) transport at x = 0 to primarily cation migration at x = 0.25, anion and cation migration at x = 0.5, and mainly anion (vacancy) migration at x = 0.75. Optimal S doping ( x = 0.25) enhances the ability of SnSe to retain its advantageous electrical properties at high temperatures, and the corresponding memristor exhibits stable operation within the temperature range of 150 - 175 °C.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xunzhe Xu,Pengjie Zhong,Jinhua Hu,Manyu Shang,Qianqian Wang,Esmaeil Heydari,Gongxun Bai
Combining GO with Eu-doped SnSe enables exceptional broadband solar absorption and photothermal conversion. • A porous hydrophilic PAM hydrogel substrate facilitates highly efficient water transport and concurrent photon capture. • Excellent salt rejection and water purification capabilities were demonstrated for seawater and dye-containing wastewater. Solar-driven interfacial evaporation technology has attracted considerable attention as a promising strategy to address global freshwater scarcity. However, existing evaporators often suffer from limited solar spectral absorption and unsatisfactory water transport capabilities. Herein, we propose a hydrogel-based evaporator fabricated by incorporating a composite of graphene oxide/europium-doped tin selenide into a polyacrylamide (PAM) hydrogel. The incorporation of europium ions into SnSe, synergistically combined with graphene oxide, enables highly efficient absorption across the solar spectrum. The hydrophilic PAM hydrogel significantly enhances water transport within the evaporator while promoting multiple internal reflections of sunlight, thereby improving light trapping capability. The resulting system exhibits exceptional evaporation performance, achieving an evaporation rate of 2.25 kg m −2 h −1 and an efficiency of 98.9% under one-sun irradiation. It also demonstrates excellent salt rejection performance, exhibiting its superior performance in water treatment and seawater desalination. The strategy presented in this work, characterized by efficient solar absorption and remarkable water transport, paves the way for advancing sustainable freshwater production technologies. Download: Download high-res image (133KB) Download: Download full-size image
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Min Sun,Guowu Tang,Wangwang Liu,Guoquan Qian,Kaimin Huang,Dongdan Chen,Qi Qian,Zhongmin Yang
Tin selenide (SnSe) exhibits high thermoelectric (TE) performance, which is a promising TE candidate for thermal-electrical energy conversion. In this work, Sn-Se alloy core borosilicate glass-clad fibers with ∼94 μm core and ∼220 μm cladding in diameter were fabricated by a molten core drawing method. X-ray diffraction (XRD) showed the core to be highly crystalline and consist of SnSe and SnSe 2 poly-crystal grains. Based on EPMA measurement, there exists an inter-diffusion process between the core and cladding ions during the fiber drawing. The Seebeck coefficient of the Sn-Se core is −151 μV/K. The electrical conductivity of the Sn-Se core is as high as 6.2 × 10 3 S/m, which is close to that of SnSe single crystals. The demonstration of fibers with TE core materials and the integration with the conventional fiber fabrication technique represents the first step in providing the building blocks for fiber-integrated TE devices.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）