Vapor‐phase anion‐exchange strategy‐assisted high-performance CsPbCl3 perovskite photodetectors for ultraviolet imaging applications
Source abstract
Abstract
CsPbCl 3 perovskite holds potential for application in the field of ultraviolet (UV) detection due to its exceptional response to UV light and resistance to UV-induced oxidation. However, existing CsPbCl 3 films mostly require high-temperature and high-pressure conditions for their preparation. In this investigation, we introduce a CsPbCl 3 photodetector based on the anion exchange method, featuring a vertical structure of FTO/TiO 2/CsPbCl 3/Au. This proposal aims to alleviate challenges in film formation and enhance film quality. To enhance photoresponse, a TiO 2 transport layer is employed to modify the surface defects. Experimental results demonstrate a significant reduction in carrier recombination probability, decrease the dark current by three orders of magnitude, and improve the on/off ratio by 6.17 × 10 3 times of the device. The optimized device achieves an on/off ratio of 2.04 × 10 5 under an illumination intensity of 39.8 mW/cm 2 , exhibiting a response time of 4.70/1.91 ms and a detectivity of 2.72 × 10 12 Jones. Owing to its high performance, the potential of this proposed photodetector can be extended for use in weak-light UV imaging. Our research offers a feasible method for the scalable production of self-powered, high-performance UV photodetectors.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Perovskite Materials and Applications · Luminescence Properties of Advanced Materials · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. 360°detection of linear ZnO@CFs photoelectrochemical-type ultraviolet photodetector10.1063/5.0158841 ↗
2. Micro spot ZnO nanotubes using laser assisted chemical bath deposition: a low-cost approach to UV photodetector fabrication10.1016/j.sna.2022.113485 ↗
3. Solar-blind ultraviolet photodetectors based on Ta-doped β-Ga2O3 heteroepitaxial films10.1016/j.optmat.2022.112491 ↗
4. Heterointerface engineering of tetragonal CsPbCl3 based ultraviolet photodetectors with pentacene for enhancing the photoelectric performance10.1039/D2TC02846H ↗
5. ZnO:Ca MSM ultraviolet photodetectors10.1016/j.optmat.2021.111960 ↗
6. Investigation on sub-band gap defects aided UV to NIR broad-band low-intensity photodetection by SnO2 thin film10.1016/j.sna.2020.112168 ↗
7. Ultrafast and ultrabroadband UV–vis–NIR Photosensitivity under Reverse and Self-Bias Conditions by n+-ZnO/n-Si isotype heterojunction with >1 kHz bandwidth10.1021/acsaelm.2c01668 ↗
8. Photomultiplication-type perovskite photodetectors base on air-processed perovskite films10.1016/j.orgel.2023.106800 ↗
9. Thin films deposition of fully inorganic metal halide perovskites: a review10.1016/j.mssp.2022.106721 ↗
10. Electrical and optical characterization of CsPbCl3 films around the high-temperature phase transitions10.3390/nano12030570 ↗
11. Thermally evaporated CsPbCl3 perovskite on Si/SiO2 with wide spectrum photoresponse from ultraviolet (UV) to Near-Infrared (NIR)10.1021/acsaelm.3c00409 ↗
12. A novel approach for designing efficient broadband photodetectors expanding from deep ultraviolet to near infrared10.1038/s41377-022-00777-w ↗
13. Passivating the vacancy defects of CsPbCl3 polycrystalline films by a Cl-containing ionic liquid for self-powered, charge-transport-layer-free UV photodetectors10.1039/D2TC00080F ↗
14. High performance ultraviolet photodetector based on CsPbCl3/ ZTO heterostructure film enabled by effective separation of photocarriers10.1016/j.jallcom.2023.171043 ↗
15. Photoluminescence analysis of CsPb2Cl5 and CsPbCl3 perovskite films doped with Yb3+ deposited by aerosol-assisted CVD10.1016/j.ceramint.2023.06.201 ↗
16. Boosting the performance of self-powered CsPbCl3-Based UV photodetectors by a sequential vapor-deposition strategy and heterojunction engineering10.1021/acsami.1c15013 ↗
17. Ultra‐stable and sensitive ultraviolet photodetectors based on monocrystalline perovskite thin films10.1002/adfm.202213360 ↗
18. Nonmonotonic temperature-dependent bandgap change of CsPbCl3 films induced by optical phonon scattering10.1016/j.jlumin.2023.119736 ↗
19. A-site substitute for fabricating all-inorganic perovskite CsPbCl3 with application in self-powered ultraviolet photodetectors10.1021/acs.jpclett.1c03891 ↗
20. Precise phase control of large-scale inorganic perovskites via vapor-phase anion-exchange strategy10.1002/smll.202005226 ↗
21. Flexible CsPbCl3 inorganic perovskite thin-film detectors for real-time monitoring in protontherapy10.3389/fphy.2023.1126753 ↗
22. Ytterbium doping reduces the dark current of UV photoelectric detector based on TiO210.1016/j.matchemphys.2022.126966 ↗
23. Enhancing the photoelectric performance of the self-powered all vapor-deposited CsPbCl3 ultraviolet photodetectors by a novel cadmium-doping strategy and heterojunction engineering10.1016/j.solmat.2022.112175 ↗
24. Impact of Br-doping on the optical and optoelectronic properties of CsPbCl3 crystals10.1016/j.jcrysgro.2022.127039 ↗
25. Preparation and characterization of crystalline Ba0.5Sr0.5TiO3 thin films on FTO transparent electrodes10.1016/j.ceramint.2023.05.051 ↗
26. Ultrafast self-powered CsPbCl3 ultraviolet photodetectors with choline chloride for surface passivation and charge transport regulation10.1039/D3TC00063J ↗
27. Low-temperature vapor-phase anion-exchange strategy for wide-bandgap double-perovskite Cs2AgBiCl6 films toward weak ultraviolet light imaging10.1021/acsami.2c06008 ↗
28. Electrical characteristics and photodetection mechanism of TiO2/AlGaN/GaN heterostructure-based ultraviolet detectors with a Schottky junction10.1039/D2TC04491A ↗
29. Importance of Bi–O Bonds at the Cs2AgBiBr6 double-perovskite/substrate interface for crystal quality and photoelectric performance10.1021/acsami.9b20640 ↗
30. Effect of optimization of TiO2 electron transport layer on performance of perovskite solar cells with rough FTO substrates10.3390/ma13102272 ↗
31. Achieving high responsivity and detectivity in a quantum-dot-in-perovskite photodetector10.1021/acs.nanolett.2c04144 ↗
32. Theoretical study of Ca-doped CsPbBr3 and CsPbCl3 with enhanced structure stability and excellent optoelectronic properties10.1016/j.physb.2023.414941 ↗
33. Realization of 1.54–µm Light‐Emitting Diodes Based on Er3+/Yb3+Co‐Doped CsPbCl3 films10.1002/adma.202300118 ↗
34. Efficient quantum cutting of lanthanum and ytterbium ions co-doped perovskite quantum dots towards improving the ultraviolet response of silicon-based photodetectors10.1016/j.jallcom.2022.166097 ↗
35. Spray-coating thick films of all-inorganic halide perovskites for filterless narrowband photodetectors10.1021/acsami.2c03585 ↗
36. Ultra‐stable and sensitive ultraviolet photodetectors based on monocrystalline perovskite thin films10.1002/adfm.202213360 ↗
37. Monolayer cesium lead bromine chloride nanocrystal self-powered photodetectors10.1109/LED.2022.3184285 ↗
38. All-inorganic lead-free NiOx/Cs3Bi2Br9 perovskite heterojunction photodetectors for ultraviolet multispectral imaging, Nano10.1007/s12274-021-3608-4 ↗
39. Self‐powered perovskite photodetector arrays with asymmetric contacts for imaging applications10.1002/aelm.202300106 ↗