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Zhang P, Guo J, Zhang L, Tao L, Sui Y, Fu Q, Wang X, Song B. Ultrafast Multifunctional Photodetector Based on the NiAl 2O 4/4H-SiC Heterojunction. ACS Appl Mater Interfaces 2024. [PMID: 38603540 DOI: 10.1021/acsami.4c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Solar-blind photodetectors based on wide bandgap semiconductors have recently attracted a lot of interest. Nickel-containing spinel phase oxides, such as NiAl2O4, are stable p-type semiconductors. This paper describes a multifunctional solar-blind photodetector based on a NiAl2O4/4H-SiC heterojunction that utilizes photovoltaic effects. The position sensitivity reaches a value of 1589.7 mV/mm under 405 nm laser illumination, while the relaxation times of vertical photovoltaic (VPV) effect and lateral photovoltaic (LPV) effect under 266 nm laser illumination are only 0.32 and 0.42 μs, respectively. This junction was used to create a space optical communication system with sunlight having little effect on its optoelectronic properties. The ultrafast photovoltaic relaxation time makes NiAl2O4/4H-SiC a promising candidate for self-powered high-performance solar-blind detectors.
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Affiliation(s)
- Pengbo Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Jiarui Guo
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Lingli Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Lingling Tao
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Yu Sui
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Qiang Fu
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Xianjie Wang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
- Frontiers Science Center for Matter Behave in Space Environment, Harbin Institute of Technology, Harbin 150001, China
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, China
| | - Bo Song
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
- Frontiers Science Center for Matter Behave in Space Environment, Harbin Institute of Technology, Harbin 150001, China
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, China
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, China
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Hu J, Wang X, Lin L, Xu J, Liu M, Wang R, Li X, Tao L, Sui Y, Song B. High-Performance Self-Powered Photodetector Based on the Lateral Photovoltaic Effect of All-Inorganic Perovskite CsPbBr 3 Heterojunctions. ACS Appl Mater Interfaces 2023; 15:1505-1512. [PMID: 36548398 DOI: 10.1021/acsami.2c16347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
CsPbBr3, an inorganic halide perovskite, has attracted great interest in recent years due to its excellent photoelectric properties. In this paper, we report a high-performance position-sensitive detector and laser communication sensor based on a CsPbBr3/4H-SiC heterojunction that effectively exploits the lateral photovoltaic (LPV) effect. The X-ray diffraction, X-ray photoelectron spectra, and photoluminescence data indicate that a high-quality CsPbBr3 film has been successfully obtained using pulsed laser deposition. The thickness of the CsPbBr3 film is shown to play a key role in the open-circuit voltage and linear LPV. A large position sensitivity (up to 827 mV/mm) of the LPV with a fast relaxation time is observed. Moreover, the shortest relaxation time of only 0.34 μs for 532 nm laser irradiation among counterparts is achieved in the detector under consideration. Furthermore, the position sensitivity and relaxation time of the LPV in the CsPbBr3/4H-SiC heterojunction show a weak dependence on the laser wavelength from 266 to 532 nm. The robust characteristics of fast relaxation time and high position sensitivity of the LPV make the CsPbBr3 junction a promising candidate for both laser communication sensors and self-powered high-performance position-sensitive detectors.
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Affiliation(s)
- Junbei Hu
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Xianjie Wang
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Lei Lin
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Jie Xu
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin150001, China
| | - Mengting Liu
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Ran Wang
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Xiaofeng Li
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Lingling Tao
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Yu Sui
- School of Physics, Harbin Institute of Technology, Harbin150001, China
| | - Bo Song
- School of Physics, Harbin Institute of Technology, Harbin150001, China
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin150001, China
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Zahn C, Stensitzki T, Gerecke M, Berg A, Mahammed A, Gross Z, Heyne K. Ultrafast Dynamics of Sb-Corroles: A Combined Vis-Pump Supercontinuum Probe and Broadband Fluorescence Up-Conversion Study. Molecules 2017; 22:E1174. [PMID: 28703762 DOI: 10.3390/molecules22071174] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/01/2017] [Accepted: 07/10/2017] [Indexed: 12/17/2022] Open
Abstract
Corroles are a developing class of tetrapyrrole-based molecules with significant chemical potential and relatively unexplored photophysical properties. We combined femtosecond broadband fluorescence up-conversion and fs broadband Vis-pump Vis-probe spectroscopy to comprehensively characterize the photoreaction of 5,10,15-tris-pentafluorophenyl-corrolato-antimony(V)-trans-difluoride (Sb-tpfc-F₂). Upon fs Soret band excitation at ~400 nm, the energy relaxed almost completely to Q band electronic excited states with a time constant of 500 ± 100 fs; this is evident from the decay of Soret band fluorescence at around 430 nm and the rise time of Q band fluorescence, as well as from Q band stimulated emission signals at 600 and 650 nm with the same time constant. Relaxation processes on a time scale of 10 and 20 ps were observed in the fluorescence and absorption signals. Triplet formation showed a time constant of 400 ps, with an intersystem crossing yield from the Q band to the triplet manifold of between 95% and 99%. This efficient triplet formation is due to the spin-orbit coupling of the antimony ion.
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Hu C, Wang X, Miao P, Zhang L, Song B, Liu W, Lv Z, Zhang Y, Sui Y, Tang J, Yang Y, Song B, Xu P. Origin of the Ultrafast Response of the Lateral Photovoltaic Effect in Amorphous MoS 2/Si Junctions. ACS Appl Mater Interfaces 2017; 9:18362-18368. [PMID: 28485569 DOI: 10.1021/acsami.7b04298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The lateral photovoltaic (LPV) effect has attracted much attention for a long time because of its application in position-sensitive detectors (PSD). Here, we report the ultrafast response of the LPV in amorphous MoS2/Si (a-MoS2/Si) junctions prepared by the pulsed laser deposition (PLD) technique. Different orientations of the built-in field and the breakover voltages are observed for a-MoS2 films deposited on p- and n-type Si wafers, resulting in the induction of positive and negative voltages in the a-MoS2/n-Si and a-MoS2/p-Si junctions upon laser illumination, respectively. The dependence of the LPV on the position of the illumination shows very high sensitivity (183 mV mm-1) and good linearity. The optical relaxation time of LPV with a positive voltage was about 5.8 μs in a-MoS2/n-Si junction, whereas the optical relaxation time of LPV with a negative voltage was about 2.1 μs in a-MoS2/p-Si junction. Our results clearly suggested that the inversion layer at the a-MoS2/Si interface made a good contribution to the ultrafast response of the LPV in a-MoS2/Si junctions. The large positional sensitivity and ultrafast relaxation of LPV may promise the a-MoS2/Si junction's applications in fast position-sensitive detectors.
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Affiliation(s)
- Chang Hu
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Xianjie Wang
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Peng Miao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150001, China
| | - Lingli Zhang
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Bingqian Song
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Weilong Liu
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Zhe Lv
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Yu Zhang
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Yu Sui
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
| | - Jinke Tang
- Department of Physics and Astronomy, University of Wyoming , Laramie, Wyoming 82071, United States
| | - Yanqiang Yang
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics , Mianyang 621900, China
| | - Bo Song
- Department of Physics, Harbin Institute of Technology , Harbin 150001, China
- Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, China
| | - Ping Xu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150001, China
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Abstract
Cyclic tetrapyrroles are the active core of compounds with crucial roles in living systems, such as hemoglobin and chlorophyll, and in technology as photocatalysts and light absorbers for solar energy conversion. Zinc-tetraphenylporphyrin (Zn-TPP) is a prototypical cyclic tetrapyrrole that has been intensely studied in past decades. Because of its importance for photochemical processes the optical properties are of particular interest, and, accordingly, numerous studies have focused on light absorption and excited-state dynamics of Zn-TPP. Relaxation after photoexcitation in the Soret band involves internal conversion that is preceded by an ultrafast process. This relaxation process has been observed by several groups. Hitherto, it has not been established if it involves a higher lying "dark" state or vibrational relaxation in the excited S2 state. Here we combine high time resolution electronic and vibrational spectroscopy to show that this process constitutes vibrational relaxation in the anharmonic S2 potential.
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