TiO2 nanoarrays/Au nanoparticles/PProDOT-Py hybrid heterojunction UV photodetector

liu, Haile; Abdiryim, Tursun; Jamal, Ruxangul; Liu, Xiong; Niyaz, Mariyam; Liu, Lielie; Zhang, Hujun; Zou, Dongna; Li, Junxia; Song, Yanyan; Wei, Jin

doi:10.1016/j.orgel.2022.106644

Cited by 2 publications

(2 citation statements)

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“…The rutile phase is the stable crystalline phase, and anatase can convert to the rutile phase when sintered at high temperature. The forbidden bandwidths of rutile and anatase phases are 3.2 and 3.0 eV. , Among them, rutile phase TiO 2 is the most stable, followed by anatase, and brookite is the least stable, so the application of the brookite phase is greatly limited. The basic structures of rutile and anatase TiO 2 are discussed here.…”

Section: Structures and Properties Of Tio2mentioning

confidence: 99%

“…In the research of π-conjugated polymers, D-A-D type polymers have attracted widespread attention and can be applied in fields such as optics and electrical materials. D-A-D polymers (PProDOT-Py, PProDOT-Pz) were synthesized by pyridine/pyridazine (acceptor units) and ProDOT (donor unit), respectively, and they polymerized electrochemically on the surface of TiO 2 NRs for UV photodetection. , PProDOT-Py (Pz) was unevenly distributed on the TiO 2 NRs as a cross-linked network. PProDOT-Py (Pz) is distributed unevenly on the TiO 2 NRs in the form of a cross-linked network, forming a p-n heterojunction in the internal structure of the heterojunction.…”

Section: Conductive Polymer-modified Tio2 Composites For Nonself-powe...mentioning

confidence: 99%

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Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review

Tang,

Liu,

Jamal

et al. 2024

ACS Appl. Polym. Mater.

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Wide band gap TiO2 with high light absorption coefficient, high crystallinity, and high carrier mobility is widely used to assemble ultraviolet photodetectors (UV PDs) with high performance. Based on the strong attractiveness from its advantages such as high stability and excellent photoelectric properties, the construction of high-performance TiO2-based UV PDs has been extensively developed. Conducting polymers with high carrier mobility and good electrical conductivity can make up for the shortcomings of TiO2-based UV PDs to achieve efficient TiO2-based UV PDs with high photoelectric performances. In this paper, we present an in-depth review of the preparation process of TiO2 with conducting polymers and their complexes and introduce the principle, classification, and main evaluation parameters of UV PDs. In addition, this paper reviews that TiO2/polymer UV PDs have exhibited different optoelectronic properties (responsivity, switching ratio, detectivity, response time, etc.). Finally, it looks at the future of TiO2-based UV PDs research and the major challenges that need to be addressed, particularly that of further functional applications. This review lays the foundation for solving current technical problems and provides insights into the preparation of a more efficient TiO2/conductive polymer for future photovoltaic applications.

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Section: Structures and Properties Of Tio2mentioning

confidence: 99%

Section: Conductive Polymer-modified Tio2 Composites For Nonself-powe...mentioning

confidence: 99%

Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review

Tang,

Liu,

Jamal

et al. 2024

ACS Appl. Polym. Mater.

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An MSM photodetector based on an InGaO/TiO2 heterojunction for high-performance UV detection

Bi,

Liu,

Zhang

et al. 2024

Applied Physics Letters

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As typical metal–oxide wide bandgap semiconductor devices, ultraviolet (UV) photodetectors (PDs) based on TiO2 have encountered challenges related to high dark current and low photo-to-dark suppression ratio. In this study, indium (In) was doped into Ga2O3 to create the compound InGaO (IGO). Subsequently, IGO was combined with TiO2 to fabricate IGO/TiO2 heterojunction (ITH) MSM UVPDs. The built-in electric field constructed at the contact interface is capable of depleting the majority carriers in dark and limiting the dark current. The Au interdigital electrodes and the IGO film of the top layer will form an Ohmic contact without the carrier transport barrier to construct a photoconductive device with high photo currents. The results show that the ITH UVPDs exhibit a notable photo current of 1.21 mA and a low dark current of 0.29 nA, leading to an ultrahigh photo-to-dark current ratio of 6 orders of magnitude (4.17 × 106). Additionally, the UVPDs demonstrate a significant responsivity (R) of 1.16 × 104 A/W and a remarkable detectivity (D*) of 7.34 × 1015 Jones under 290 nm UV illumination at 5 V bias. This study provides a potential method for fabricating high-performance UVPDs.

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TiO2 nanoarrays/Au nanoparticles/PProDOT-Py hybrid heterojunction UV photodetector

Cited by 2 publications

References 61 publications

Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review

Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review

An MSM photodetector based on an InGaO/TiO2 heterojunction for high-performance UV detection

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TiO2 nanoarrays/Au nanoparticles/PProDOT-Py hybrid heterojunction UV photodetector

Cited by 2 publications

References 61 publications

Application of Conductive Polymer in TiO2-Based UV Photodetectors: A Review

Application of Conductive Polymer in TiO2-Based UV Photodetectors: A Review

An MSM photodetector based on an InGaO/TiO2 heterojunction for high-performance UV detection

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Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review

Application of Conductive Polymer in TiO₂-Based UV Photodetectors: A Review