Cu2O/TiO2 core–shell nanowire heterojunction for high-performance self-powered photodetector
Source abstract
Abstract
High-performance self-powered photodetectors (PDs) have great commercial value in optical communication, intelligent sensing and medical diagnosis. However, the limited active area of traditional thin film heterojunction seriously restricts the photoelectric performance of the detector. In this paper, the Cu 2O/TiO 2 core-shell nanowire (NW) heterojunction PD was synthesized for the first time by simple hydrothermal and electrochemical deposition methods, which effectively improved the response performance and response speed of the device based on its broad photoactive area and ordered carrier transport path. The PD exhibits significant diode behavior, with rectification ratios of 543 at ±2 V. The responsivity is as high as 6.8 mA W −1 at zero bias under 490 nm illumination. The short rise and decay times measured are 0.09 and 0.18 s at zero bias, respectively. Obviously, this low-cost, high-performance self-powered Cu 2O/TiO 2 core-shell NW heterojunction PD shows great promise in future optoelectronic device applications.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (56)
Show source-provided references
1. An organic electrochemical transistor integrated photodetector for high quality photoplethysmogram signal acquisition10.1002/adfm.202211479 ↗
2. Flexible and transparent MXene-platformed ultrafast photodetector for encrypted signal communication in self-powered operation10.1016/j.nanoen.2023.108331 ↗
3. Bandgap engineering and oxygen vacancy defect electroactivity inhibition in highly crystalline N‑Alloyed Ga2O3
4. Two-dimensional antimony-based perovskite-inspired materials for high-performance self-powered photodetectors
5. Self-powered photodetector for ultralow power density UV sensing10.1016/j.nantod.2022.101399 ↗
6. A self-powered solar-blind photodetector with fast response based on Au/β-Ga2O3 nanowires array film schottky junction10.1021/acsami.5b11956 ↗
7. Self-powered MSM deep-ultraviolet β-Ga2O3 photodetector realized by an asymmetrical pair of Schottky contacts10.1364/OME.9.001191 ↗
8. Self-powered, ultrafast, visible-blind UV detection and optical logical operation based on ZnO/GaN nanoscale p-n junctions10.1002/adma.201003156 ↗
9. High-performances self-powered deep ultraviolet photodetector based on MoS2/GaN p-n heterojunction10.1039/C7TC04754A ↗
10. An ultrahigh responsivity (9.7 mA W−1) self-powered solar-blind photodetector based on individual ZnO-Ga2O3 heterostructures10.1002/adfm.201700264 ↗
11. Large scale, highly efficient and self-powered UV photodetectors enabled by all-solid-state n-TiO2 nanowells/p-NiO mesoporous nanosheets heterojunction10.1039/C6TC03830A ↗
12. A self-powered ultraviolet photodiode using an amorphous InGaZnO/p-silicon nanowire heterojunction10.1016/j.vacuum.2020.109619 ↗
13. Coupled one-dimensional plasmons and two-dimensional phonon polaritons in hybrid silver nanowire/silicon carbide structures10.1021/acs.nanolett.7b00845 ↗
14. Defect-assisted broad-band photosensitivity with high responsivity in Au/self-seeded TiO2 NR/Au-based back-to-back Schottky junctions10.1021/acsomega.8b03084 ↗
15. Solution processed transparent anatase TiO2 nanoparticles/MoO3 nanostructures heterojunction: high performance self-powered UV detector for low-power and low-light applications10.1039/D0NA00780C ↗
16. Scalable production, self-powered TiO2 nanowells/organic hybrids UV photodetectors with tunable performances10.1021/acsami.6b11012 ↗
17. Functional nanocrystalline TiO2 thin films for UV enhanced highly responsive silicon photodetectors10.1016/j.jallcom.2019.04.111 ↗
18. Growth of Cu2O thin films with high hole mobility by introducing a low-temperature buffer layer10.1016/j.jcrysgro.2008.11.038 ↗
19. Epitaxial growth of high mobility Cu2O thin films and application to p-channel thin film transistor10.1063/1.3026539 ↗
20. Electrochemically deposited Cu2O‑doped TiO2 nanotube photoanodes for hydrogen evolution10.1007/s10562-022-04121-0 ↗
21. Antibacterial effect of Cu2O/TiO2 photocatalytic composite on Pseudomonas marginalis pv. Marginalis10.1007/s00203-022-03065-8 ↗
22. Facile methodology to generate Cu2O/TiO2 heterojunction on FTO electrode for photoelectroreduction of nitrate10.1016/j.matlet.2021.129663 ↗
23. ZnO/CuCrO2 core-shell nanowire heterostructures for self-powered UV photodetectors with fast response10.1002/adfm.201803142 ↗
24. A. V omiero, Self-powered photodetectors based on core-shell ZnO-Co3O4 nanowire heterojunctions10.1021/acsami.9b04838 ↗
25. A self-powered high-performance UV photodetector based on core–shell GaN/MoO3-x nanorod array heterojunction10.1002/adom.202000197 ↗
26. Si/CuIn0.7Ga0.3Se2 core-shell heterojunction for sensitive and self-driven UV–vis–NIR broadband photodetector10.1002/adom.201900023 ↗
27. Ultraviolet photoelectrochemical photodetector based on GaN/Cu2O core-shell nanowire p-n heterojunctions10.1063/5.0127889 ↗
28. Growth of aligned single-crystalline rutile TiO2 nanowires on arbitrary substrates and their application in dye-sensitized solar cells10.1021/jp100491h ↗
29. TiO2/SiOx core-shell nanowires generated by heating the multilayered substrates10.1007/s12540-013-4030-6 ↗
30. Efficient charge separation of In-situ Nb-doped TiO2 nanowires for photoelectrochemical water-splitting10.1002/slct.201700319 ↗
31. The electrical properties and the interfaces of Cu2O/ZnO/ITO p-i-n heterojunction10.1016/j.physb.2004.06.003 ↗
32. Self-powered UV photodetector of TiO2 with BaTiO3 surface modification and light-controlled logic circuits application10.1021/acsami.3c03628 ↗
33. High-performance self-powered ultraviolet photodetector based on BiOCl/TiO2 heterojunctions: carrier engineering of TiO210.1016/j.apsusc.2022.153350 ↗
34. Self-powered ultraviolet photodetectors based on match like quasi one-dimensional n-TiO2/p-NiO core-shell heterojunction arrays with NiO layer sputtered at different power10.1016/j.jallcom.2022.167126 ↗
35. Visible-blind self-powered ultraviolet photodetector based on CuI/TiO2 nanostructured heterojunctions10.1021/acsanm.2c03776 ↗
36. Coal-based carbon quantum dots-sensitized TiO2 NRs/PTTh heterostructure for self-powered UV detection10.1016/j.apsusc.2022.154797 ↗
37. 1D/2D/0D Mixed-dimensional TiO2/ZnO/Ag core-shell nanowires for high-performance UV-Vis photoelectrochemical photodetectors10.1021/acs.jpcc.2c07485 ↗
38. Fabrication of double-walled carbon nanotube film/Cu2O nanoparticle film/TiO2 nanotube array heterojunctions for photosensors10.1063/1.4730399 ↗
39. p–n junction induced electron injection type transparent photosensitive film of Cu2O/carbon quantum dots/ZnO10.1088/1361-6528/aaa327 ↗
40. Photovoltaic high-performance broadband photodetector based on MoS2/Si nanowire array heterojunction10.1016/j.solmat.2018.03.017 ↗
41. Construction of high-quality CdS:Ga nanoribbon/silicon heterojunctions and their nano-optoelectronic applications10.1088/0957-4484/22/40/405201 ↗
42. Arrayed van der waals broadband detectors for dual-band detection
43. High external quantum efficiency in ZnO/Au/Ga2O3 sandwich–structured photodetector10.1016/j.apsusc.2023.156705 ↗
44. Self-powered solar-blind deep-UV photodetector based on CuI/Ga2O3 heterojunction with high sensitivity10.1016/j.sna.2022.114068 ↗
45. Charge-carrier engineering of staggered-gap p-CuAlO2/β-Ga2O3 bipolar heterojunction for self-powered photodetector with exceptional linear dynamic range and stability
46. High-photoresponsivity self-powered ɑ‑, ε‑, and β‑Ga2O3/p-GaN heterojunction uv photodetectors with an in situ GaON layer by MOCVD10.1021/acsami.2c06927 ↗
47. Self-powered TiO2 NRs UV photodetectors: heterojunction with PTTh and enhanced responsivity by Au nanoparticles10.1016/j.jallcom.2021.163279 ↗
48. A high-performance NiO/TiO2 UV photodetector: the influence of the NiO10.1039/D1TC02687A ↗
49. Improved performance of UV-blue dual-band Bi2O3/TiO2 photodetectors and application of visible light communication with UV light encryption10.1039/D3CP04100J ↗
50. Large scale, highly efficient and self-powered UV photodetectors enabled by all-solid-state n-TiO2 nanowell/p-NiO mesoporous nanosheet heterojunctions10.1039/C6TC03830A ↗
51. Self-powered flexible TiO2 fibrous photodetectors: heterojunction with P3HT and boosted responsivity and selectivity by Au nanoparticles10.1002/adfm.202001604 ↗
52. self-powered ultraviolet photodetector based on TiO2/Ag/ZnS nanotubes with high stability and fast response10.1039/C9TC05326C ↗
53. TiO2/PFO inorganic-organic hybrid heterojunction for self-powered blue light photodetector10.1088/2053-1591/ac0f1c ↗
54. Application of a dual functional blocking layer for improvement of the responsivity in a self-powered UV photodetector based on TiO2 nanotubes10.1039/D2RA00379A ↗
55. Highly sensitive and self powered ultraviolet photo detector based on ZnO nanorods coated with TiO210.1016/j.sna.2022.114112 ↗
56. CuO-TiO2 based self-powered broad band photodetector