Performance improvement of flexible ultraviolet photodetectors based on ZnO nanorod arrays by hydrothermal method with assistance of polyethyleneimine

Hybrid UV Photodetector Design Incorporating AuPt Alloy Hybrid Nanoparticles, ZnO Quantum Dots, and Graphene Quantum Dots

“…In Figure b, the ZnO QD- and GQD-related Raman spectra are shown. The Raman peaks located at 333, 378, 440, and 578 cm –1 can be assigned to the E 2H -E 2L , A 1(TO) , E 2H , and E 1(LO) modes of ZnO QDs, respectively. , Non-polar E 2H can be due to wurtzite ZnO and the E 1(LO) mode can be associated with the oxygen defects in ZnO QDs. The high peak intensity with narrow Raman bands can indicate superior crystallinity of the synthesized ZnO QD layer.…”

“…The Raman peaks located at 333, 378, 440, and 578 cm −1 can be assigned to the E 2H -E 2L , A 1(TO) , E 2H , and E 1(LO) modes of ZnO QDs, respectively. 39,40 Non-polar E 2H can be due to wurtzite ZnO and the E 1(LO) mode can be associated with the oxygen defects in ZnO QDs. 6d−f.…”

Fabrication, material regulation, and healthcare applications of flexible photodetectors

“…1e. 28 PEI, as a growth additive material, was used to adjust the aspect ratio of ZnO nanorods by affecting the nucleation process to prepare ultra-long ZnO nanorods. In addition, the introduction of PEI also reduced the oxygen defects of ZnO nanorods and improved the photoelectric performance and response speed of the fabricated device.…”

A synergetic enhancement strategy of light utilization and carrier transfer for UV photodetection associated with artificial resonance nano-cavities

“…The bandgap, electron affinity and work function of ZnO were set to be 3.37 eV, 4.3 eV and 5.2 eV respectively. [72][73][74] As for MXene, the work function was set to be 4.3 eV. 75…”