Siwen Tao

ORCID: 0000-0003-4952-3403
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About
Contact & Profiles
Research Areas
  • Perovskite Materials and Applications
  • Solid-state spectroscopy and crystallography
  • Advanced Photocatalysis Techniques
  • Chalcogenide Semiconductor Thin Films
  • Quantum Dots Synthesis And Properties
  • Crystallization and Solubility Studies
  • Gas Sensing Nanomaterials and Sensors
  • Luminescence Properties of Advanced Materials
  • Analytical Chemistry and Sensors
  • Advanced Chemical Sensor Technologies
  • TiO2 Photocatalysis and Solar Cells
  • Electrochemical sensors and biosensors
  • ZnO doping and properties
  • Crystallography and molecular interactions
  • X-ray Diffraction in Crystallography
  • Ga2O3 and related materials

Jilin University
2024

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
2024

Liaocheng University
2019-2021

Materials Science & Engineering
2019-2020

Photodetectors play a key role in the military, aerospace, communications, bio-imaging, etc. In this study, we fabricate photodetector devices based on (CH3NH3)2FeCuI4Cl2 (MA2FeCuI4Cl2) and (CH3NH3)2InCuI6 (MA2InCuI6) for first time. We find that device MA2InCuI6 is highly selective ultraviolet light (880 nA mW-1) shows high anti-interference visible-light (20-50 mW-1). The electrochemical impedance results indicate value (480 ± 10 Ω) of resistance much smaller than (1 0.001 MΩ) MA2FeCuI4Cl2...

10.1039/c9cc09408c article EN Chemical Communications 2019-12-23

Metal halide salts have attracted widespread attention because of their good physical and chemical properties. In this study, lead‐free copper salt CsCuCl 3 single crystals photodetectors were prepared. According to the crystal diffraction data, has a hexagonal structure with P 6 5 22 (179) space group (7.2399 × 7.2399 18.3096 Å, 90.000 120.000). The along z ‐axis is double‐stranded helix structure. To best our knowledge, first study on for optoelectronic applications. photodetector exhibits...

10.1002/ejic.202000168 article EN European Journal of Inorganic Chemistry 2020-04-28

The performance of lead halogen perovskite is often closely related to its crystal structure. However, the chemical and optoelectronic properties tetragonal phase single MAPbCl3 (SC T-MAPbCl3) are rarely reported. In this study, we synthesized SC T-MAPbCl3 with P4/mcc (124) space group by a modified inverse temperature crystallization (M-ITC) method. twist angle Cl anion on equatorial plane PbCl64- octahedron around c-axis 8.4°. resistance (62 MΩ) obviously decreased 3 MΩ under 395 404 nm...

10.1039/d0cc02738c article EN Chemical Communications 2020-01-01

The semi-transparent solar cells are promising to be applied in building integrated photovoltaic (BIPV) and tandem cells. In this study, we fabricate stable for BIPV by utilizing a poly (ethylene oxide) electrolyte controlling the size of TiO2 nanoparticles thickness film. power conversion efficiency (over 50% transmittance at 620–750 nm) quasi-solid is 5.78% under standard AM1.5G, 100 mW cm–2. higher conductivity smaller diffusion resistance inside mesoporous film indicate confinement...

10.1021/acsomega.9b01956 article EN cc-by-nc-nd ACS Omega 2019-09-05

At present, developing new organic–inorganic hybrid materials (OIHM) and studying their photoelectric properties is an important research field. In this work, the OIHM (CH 3 NH ) 2 HgCl 4 (MA single crystal thin film are prepared. The results show that structure of MA has a monoclinic system with P2 1 /c (14) space group (unit cell dimensions 7.776 × 12.917 10.993 Å, 90.00 96.366 90.00) by solving diffraction data. band gap calculated to be approximately 3.21 eV. To best our knowledge, first...

10.1002/aoc.5982 article EN Applied Organometallic Chemistry 2020-09-16

Inorganic-organic hybrid perovskite (ABX 3 , A = organic cation, B metal ion, X halogen anion) combines the advantages of inorganic and materials. However, properties performance mixed-halide CH NH PbBr 2.5 Cl 0.5 (MAPbBr ) are still poorly understood. In this study, we synthetized MAPbBr single crystal studied its structure, optical, thermal stability optoelectronics applications for photodetector device. Compared with those MAPbCl interplanar distance (100) plane becomes larger absorption...

10.1166/jno.2021.2986 article EN Journal of Nanoelectronics and Optoelectronics 2021-05-01

Ion exchange of organic-inorganic hybrid perovskite plays an important role in controlling the performance materials ant its devices. In this study, we found interesting phenomenon that precipitate suspension (CH 3 NH PbI 3-x Br x γ – butyrolactone) presented different colors at high and room temperature. The mechanism study shows is controlled by temperature sensitive reversible halide ion CH mixed-halide perovskite. results structure phase, element composition morphology band gap indicate...

10.26434/chemrxiv.14150225.v1 preprint EN cc-by-nc-nd 2021-03-04

Ion exchange of organic-inorganic hybrid perovskite plays a significant role in controlling the performance materials ant its devices. In this study, an interesting phenomenon was observed that precipitate suspension (CH 3 NH PbI − x Br γ-butyrolactone) brought out different colors at high and room temperature. The mechanism study appears is controlled by temperature sensitive reversible halide ion CH mixed-halide perovskite. results structure phase, element composition morphology band gap...

10.1166/jno.2021.2985 article EN Journal of Nanoelectronics and Optoelectronics 2021-04-01

Ion exchange of organic-inorganic hybrid perovskite plays an important role in controlling the performance materials ant its devices. In this study, we found interesting phenomenon that precipitate suspension (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3-x</sub>Br<sub>x</sub> γ – butyrolactone) presented different colors at high and room temperature. The mechanism study shows is controlled by temperature sensitive reversible halide ion...

10.26434/chemrxiv.14150225 preprint EN cc-by-nc-nd 2021-03-04
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