High responsivity and 1/f noise of an ultraviolet photodetector based on Ni doped ZnO nanoparticles

Abstract

This study involves the novel fabrication of a high responsivity, fast response, and low-cost (UV) photodetector (PD) based on ZnO/Ni nanoparticles deposited on a glass substrate.

Ultraviolet Photodetection Based on High-Performance Co-Plus-Ni Doped ZnO Nanorods Grown by Hydrothermal Method on Transparent Plastic Substrate

“…The (002) reflections from TM-doped NRs were shifted slightly toward higher angles than that of the undoped ones, and this result was in good agreement with our recent Cu doping experimental observation [ 31 ], which validates the potential substitution of Zn 2+ by either Ni 2+ or Co 2+ in the host crystal of ZnO. However, a small amount of shift in (002) reflection can be associated with the insignificant mismatch in atomic radii of Ni (0.69 Å) or Co (0.72 Å) with that of Zn (0.74 Å) [ 32 , 33 ].…”

UV Sensitivity of Indium‐Zinc Oxide Nanofibers

“…In vacuum (2.4 × 10 −3 Torr, i.e., 0.4 Pa), the recovery time increases to several tens of minutes [13]. Numerous studies of ZnO show an enhancement in UV sensing due to doping of the material with di erent elements, including indium [5,6], vanadium [14], magnesium [15], aluminum [12,16,17], gallium [17], tin [18], manganese [19], nickel [20], and others. Di erent mechanisms have been proposed to account for these e ects.…”

Synthesis of Ni2+ ion doped ZnO–MWCNTs nanocomposites using an in situ sol–gel method: an ultra sensitive non-enzymatic uric acid sensing electrode material

“…44,52 In 5 NZ , sharp stretching bands observed at 830 cm À1 , 51 1066 cm À1 and 1378 cm À1 corresponding to the Zn-O-Ni bonding, Ni 2+ ions occupies Zn 2+ sites of host lattice of ZnO NPs and presence of NO 3 . 53,54 The shi of stretching vibration frequencies of 5 NZ and NZC NCs as compare to undoped ZnO NPs with supporting of respective sharp stretching bands indicates the substitution of Ni 2+ ions in Zn 2+ sites of host lattice of ZnO NPs. 53 In FTIR patterns of the NZC NCs, along with the characteristics bands of ZnO and Ni, the additional bands are observed at bands observed at 1124 cm À1 corresponds to C-O (ester) stretching vibrations and 1565 cm À1 , 1733 cm À1 stretching vibrations corresponds to C]C (carbon-carbon bonding) of sidewall framework of MWCNTs, C]O (carboxylic acid) groups.…”

“…53,54 The shi of stretching vibration frequencies of 5 NZ and NZC NCs as compare to undoped ZnO NPs with supporting of respective sharp stretching bands indicates the substitution of Ni 2+ ions in Zn 2+ sites of host lattice of ZnO NPs. 53 In FTIR patterns of the NZC NCs, along with the characteristics bands of ZnO and Ni, the additional bands are observed at bands observed at 1124 cm À1 corresponds to C-O (ester) stretching vibrations and 1565 cm À1 , 1733 cm À1 stretching vibrations corresponds to C]C (carbon-carbon bonding) of sidewall framework of MWCNTs, C]O (carboxylic acid) groups. 55 These peaks are very weak may be because of very low concentration variation of MWCNTs.…”