Preparation and characteristics study of CuAlO2/Si heterojunction photodetector by pulsed laser deposition

Ismail, Raid A.; Rashid, Fareed F.; Tariq, Mays S.

doi:10.1007/s10854-017-6389-5

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…The favorable electrical property originates from incorporating CuO in the CuAlO 2 lattice to enhance the p-type conduction via the synergistic effects of energy band bowing [30,40]. The Si/CuAlO 2 heterostructure photodetectors have been shown to exhibit high responsivity approaching 541 mA/W at 2.5 V bias voltage [41]. In spite of wide direct bandgap energy and favorable type-II band alignment with ZnO for CuAlO 2 , few photodetectors based on ZnO NRs/CuAlO 2 heterostructures have been explored so far.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Spectral Response of ZnO-Nanorod-Array-Based Ultraviolet Photodetectors by Alloying Non-Isovalent Cu–O with CuAlO2 P-Type Layer

et al. 2023

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CuAlO2 was synthesized by a hydrothermal method, in which the Cu–O dimers were incorporated by simply altering the ratio of the reactants and the temperature. The incorporation process increases the grain size in CuAlO2, and modulates the work function and binding energies for CuAlO2 due to the partial substitution of Cu+ 3d10 with Cu2+ 3d9 orbitals in the valence band maximum by alloying non-isovalent Cu–O with a CuAlO2 host. Based on the ZnO nanorod arrays (NRs) ultraviolet photodetector, CuAlO2/Cu–O fabricated by the low-cost drop-coating method was used as the p-type hole transport layer. The incorporation of the Cu–O clusters into CuAlO2 lattice to enhance the conductivity of CuAlO2 is an effective way for improving ZnO NRs/CuAlO2 device performance. The photodetectors exhibit significant diode behavior, with a rectification ratio approaching 30 at ±1 V, and a dark saturation current density 0.81 mA cm−2. The responsivity of the ZnO-NRs-based UV photodetector increases from 13.2 to 91.3 mA/W at 0 V bias, with an increase in the detectivity from 2.35 × 1010 to 1.71 × 1011 Jones. Furthermore, the ZnO NRs/[CuAlO2/Cu–O] photodetector exhibits a maximum responsivity of 5002 mA/W at 1.5 V bias under 375 nm UV illumination.

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Section: Introductionmentioning

confidence: 99%

Enhanced Spectral Response of ZnO-Nanorod-Array-Based Ultraviolet Photodetectors by Alloying Non-Isovalent Cu–O with CuAlO2 P-Type Layer

et al. 2023

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“…Heterojunction photodetectors combine two types of materials for light detection, and Si is the optimal choice for one of the two materials due to mature and cheap Si complementary metal–oxide–semiconductor (CMOS) technology with Si acting as the substrate [ 1 , 2 , 3 ]. Numerous materials have been investigated to be combined with the Si substrate in heterojunction photodetectors for the optimization of photodetector applications, and studies increasingly concentrate on graphene-based materials [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors

et al. 2018

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Oxygen-containing functional groups in graphene oxide (GO), a derivative of graphene, can widen the bandgap of graphene. In this study, we varied the amount of hydrogen peroxide used to prepare GO samples with different degrees of oxidation. Transmittance measurement, Raman spectroscopy, and X-ray photoelectron spectroscopy were used to completely characterize the change in oxidation degree. The effects of oxidation degree on p-type and n-type Si heterojunction photodetectors were compared. Notably, GO with a lower oxidation degree led to a larger photoresponse of p-type Si, whereas that with a higher oxidation degree achieved a larger photoresponse of n-type Si.

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Quantitative analysis of human teeth by using LIBS technology with different calibration methods: in vitro study

Tareq,

Hamad

2024

J Opt

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Preparation and characteristics study of CuAlO2/Si heterojunction photodetector by pulsed laser deposition

Cited by 9 publications

References 17 publications

Enhanced Spectral Response of ZnO-Nanorod-Array-Based Ultraviolet Photodetectors by Alloying Non-Isovalent Cu–O with CuAlO2 P-Type Layer

Enhanced Spectral Response of ZnO-Nanorod-Array-Based Ultraviolet Photodetectors by Alloying Non-Isovalent Cu–O with CuAlO2 P-Type Layer

Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors

Quantitative analysis of human teeth by using LIBS technology with different calibration methods: in vitro study

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