Gotowe bibliografie tematyczne / Photogating

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Gotowa bibliografia na temat „Photogating”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Photogating"

Shin, Jihyun, i Hocheon Yoo. "Photogating Effect-Driven Photodetectors and Their Emerging Applications". Nanomaterials 13, nr 5 (26.02.2023): 882. http://dx.doi.org/10.3390/nano13050882.

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Rather than generating a photocurrent through photo-excited carriers by the photoelectric effect, the photogating effect enables us to detect sub-bandgap rays. The photogating effect is caused by trapped photo-induced charges that modulate the potential energy of the semiconductor/dielectric interface, where these trapped charges contribute an additional electrical gating-field, resulting in a shift in the threshold voltage. This approach clearly separates the drain current in dark versus bright exposures. In this review, we discuss the photogating effect-driven photodetectors with respect to emerging optoelectrical materials, device structures, and mechanisms. Representative examples that reported the photogating effect-based sub-bandgap photodetection are revisited. Furthermore, emerging applications using these photogating effects are highlighted. The potential and challenging aspects of next-generation photodetector devices are presented with an emphasis on the photogating effect.

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Marcus, Matthew S., J. M. Simmons, O. M. Castellini, R. J. Hamers i M. A. Eriksson. "Photogating carbon nanotube transistors". Journal of Applied Physics 100, nr 8 (15.10.2006): 084306. http://dx.doi.org/10.1063/1.2357413.

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Bae, Sanghoon, i Stephen J. Fonash. "Impact of structure on photogating". Journal of Applied Physics 79, nr 5 (marzec 1996): 2213–20. http://dx.doi.org/10.1063/1.361185.

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Fang, Hehai, i Weida Hu. "Photogating in Low Dimensional Photodetectors". Advanced Science 4, nr 12 (4.10.2017): 1700323. http://dx.doi.org/10.1002/advs.201700323.

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Qi, Zhaoyang, Tiefeng Yang, Dong Li, Honglai Li, Xiao Wang, Xuehong Zhang, Fang Li i in. "High-responsivity two-dimensional p-PbI2/n-WS2 vertical heterostructure photodetectors enhanced by photogating effect". Materials Horizons 6, nr 7 (2019): 1474–80. http://dx.doi.org/10.1039/c9mh00335e.

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Zhang, Ke, Mingzeng Peng, Aifang Yu, Youjun Fan, Junyi Zhai i Zhong Lin Wang. "A substrate-enhanced MoS2 photodetector through a dual-photogating effect". Materials Horizons 6, nr 4 (2019): 826–33. http://dx.doi.org/10.1039/c8mh01429a.

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Ting, Lei, Lü Wei-Ming, Lü Wen-Xing, Cui Bo-Yao, Hu Rui, Shi Wen-Hua i Zeng Zhong-Ming. "Photogating effect in two-dimensional photodetectors". Acta Physica Sinica 70, nr 2 (2021): 027801. http://dx.doi.org/10.7498/aps.70.20201325.

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Han, Yuxiang, Xiao Zheng, Mengqi Fu, Dong Pan, Xing Li, Yao Guo, Jianhua Zhao i Qing Chen. "Negative photoconductivity of InAs nanowires". Physical Chemistry Chemical Physics 18, nr 2 (2016): 818–26. http://dx.doi.org/10.1039/c5cp06139c.

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Jeddi, Hossein, Mohammad Karimi, Bernd Witzigmann, Xulu Zeng, Lukas Hrachowina, Magnus T. Borgström i Håkan Pettersson. "Gain and bandwidth of InP nanowire array photodetectors with embedded photogated InAsP quantum discs". Nanoscale 13, nr 12 (2021): 6227–33. http://dx.doi.org/10.1039/d1nr00846c.

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We report on experimental results and advanced self-consistent simulations revealing a non-linear optical response, resulting from a trap-induced photogating mechanism, observed in InP nanowire array photoconductors with embedded InAsP quantum discs.

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Rozprawy doktorskie na temat "Photogating"

Mahajan, Mehak. "Charge Density Wave-driven Carrier Transport in Layered Heterostructures". Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5850.

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Metal-based electronics remain one of the longstanding goals of researchers to achieve ultra-fast and radiation-hard electronic circuits. Generally, metals are primarily used as passive conductors in modern electronics and do not play an active role. Nanoscale materials with distinctive size-dependent properties provide opportunities to achieve new device functionalities. Ta-based di-chalcogenides, particularly 1T-TaS2 and 2H-TaSe2, which form layered structures and exhibit charge density waves (CDW), are promising in this context. CDW is a macroscopic state shown by materials with reduced dimensions, for example, one-dimensional and layered two-dimensional crystals. It results from the modulation in the electronic charge arising due to a periodic modulation in the crystal lattice. 1T-TaS2 exhibits one of the strongest known CDW characteristics enabling temperature-dependent distinct resistivity phases. The nearly commensurate (NC) to the incommensurate (IC) CDW phase transition that usually occurs at 353 K and can be driven electrically at room temperature is of high practical interest. However, resistivity switching during this phase transition is weak (< 2) and cannot be modulated by an external gate voltage – limiting its widespread usage. Using a back-gated 1T-TaS2/2H-MoS2 heterojunction, we show resistivity switching up to 17.3, which is ~14.5-fold higher than standalone TaS2. We demonstrate a low barrier electrical contact between a TaS2 source and a MoS2 channel, promising “all-2D” flexible electronics. Additionally, we show that the usual resistivity switching in TaS2 due to different phase transitions is accompanied by a surprisingly strong modulation in the Schottky barrier height (SBH) at the TaS2/MoS2 interface – providing an additional knob to control the degree of the phase-transition-driven resistivity switching by an external gate voltage. In particular, the commensurate (C) to triclinic (T) CDW phase transition increases the SBH owing to a collapse of the Mott gap in TaS2. The change in SBH allows us to estimate an electrical Mott gap opening of ~71 ± 7 meV in the C phase of TaS2. The results show a promising pathway to externally control and amplify the CDW induced resistivity switching. Further, we achieve gate- and light-controlled negative differential resistance (NDR) characteristics in an asymmetric 1T-TaS2/2H-MoS2 T-junction by exploiting the electrically driven CDW phase transition of TaS2. The device operation is purely governed by majority charge carriers, making it distinct from typical tunneling-based NDR devices, thus avoiding the bottleneck of weak tunneling efficiency in van der Waals heterojunctions. Consequently, we achieve a peak current density over 10^5 nA μm^(-2), which is about two orders of magnitude higher than that obtained in typical layered material-based NDR implementations. An external gate voltage and photo-gating can effectively tune the peak current density. The device characteristics show a peak-to-valley current ratio (PVCR) of 1.06 at 290 K, increasing to 1.59 at 180 K. To exploit the low thermal conductivity of 1T-TaS2 and 2H-TaSe2 in a local heater structure, we insert 2H-TaSe2 in between TaS2 and MoS2 layers, thereby forming a triple-layered 1T-TaS2/2H-TaSe2/2H-MoS2 T-junction. TaSe2 acts as a buffer layer preventing the CDW-induced SBH modulation at TaS2/MoS2 interface. This will allow efficient thermionic switching of carriers resulting from sharp temperature rise in the junction due to electrically driven TaS2 phase transitions. Interestingly, the device can toggle between the current increment and NDR characteristics by simply changing the biasing conditions. At TaS2 biasing, the heterostructure device shows a current increment by a factor of 3 at 300 K, which gets enhanced up to ~10^3 at 77 K, beneficial for various switching circuits and sensing applications. However, under TaSe2 biasing, the device exhibits NDR characteristics with a PVCR of 1.04 and 1.10 at 300 K and 77 K, respectively. The external back-gate voltage can effectively tune the current enhancement factor and NDR. The devices mentioned above are robust against ambiance-induced degradation, and the characteristics repeat in multiple measurements over more than six months. Conventional metals, in general, do not exhibit strong photoluminescence. However, we found that 2H-TaSe2 exhibits a surprisingly strong optical absorption and photoluminescence resulting from inter-band transitions. We use this perfect combination of electrical and optical properties in several optoelectronic applications. We show a seven-fold enhancement in the photoluminescence intensity of otherwise weakly luminescent multi-layer MoS2 through non-radiative resonant energy transfer from TaSe2 transition dipoles. Using a combination of scanning photocurrent and time-resolved photoluminescence measurements, we also show that the hot electrons generated by light absorption in TaSe2 have a relatively long lifetime, unlike conventional metals, making TaSe2 an excellent hot-electron injector. Finally, we show a vertical TaSe2/MoS2/graphene photodetector demonstrating a responsivity greater than 10 AW^(-1) at 0.1 MHz - one of the fastest reported photodetectors using MoS2. The findings will boost device applications that exploit CDW phase transitions, such as ultra-broadband photodetection, negative differential conductance, thermal sensors, fast oscillator, and threshold switching in neuromorphic chips. These functionalities will enable the implementation of active metal-based circuits.

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Streszczenia konferencji na temat "Photogating"

Ogawa, Shinpei. "High-responsivity graphene infrared photodetectors based on photogating". W SPIE Future Sensing Technologies, redaktorzy Christopher R. Valenta, Joseph A. Shaw i Masafumi Kimata. SPIE, 2020. http://dx.doi.org/10.1117/12.2583742.

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Ogawa, Shinpei, Shoichiro Fukushima, Satoshi Okuda i Masaaki Shimatani. "Graphene nanoribbon photogating for graphene-based infrared photodetectors". W Infrared Technology and Applications XLVII, redaktorzy Gabor F. Fulop, Masafumi Kimata, Lucy Zheng, Bjørn F. Andresen i John Lester Miller. SPIE, 2021. http://dx.doi.org/10.1117/12.2585287.

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Voronin, K. V., G. A. Ermolaev, Yu V. Stebunov, A. V. Arsenin, A. N. Bylinkin, B. B. E. Jensen, B. Jørgensen i V. S. Volkov. "Photogating in graphene field-effect phototransistors: Theory and observations". W PROCEEDINGS OF INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0054954.

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Gonzalez-Medina, J. M., E. G. Marin, A. Toral-Lopez, F. G. Ruiz i A. Godoy. "Numerical Investigation of the Photogating Effect in MoTe2 Photodetectors". W 2019 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD). IEEE, 2019. http://dx.doi.org/10.1109/sispad.2019.8870530.

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Wang, Yifei, Vinh Ho, Zachary Henschel, Prashant Pradhan, Leslie Howe, Michael Cooney i Vinh Q. Nguyen. "Graphene photodetectors based on interfacial photogating effect with high sensitivity". W Infrared Sensors, Devices, and Applications X, redaktorzy Ashok K. Sood, Priyalal Wijewarnasuriya i Arvind I. D'Souza. SPIE, 2020. http://dx.doi.org/10.1117/12.2569035.

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Nur, R., K. Toprasertpong, S. Takagi i M. Takenaka. "Photoresponse Enhancement in MoS₂ Phototransistors by the Photogating Effect". W 2019 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2019. http://dx.doi.org/10.7567/ssdm.2019.ps-8-21.

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Shimatani, Masaaki, Shoichiro Fukushima, Satoshi Okuda, Shinpei Ogawa, Yasushi Kanai, Takao Ono, Koichi Inoue i Kazuhiko Matsumoto. "Room temperature long-wavelength infrared graphene photodetectors using photogating via the pyroelectric effect". W Infrared Technology and Applications XLVI, redaktorzy Gabor F. Fulop, Lucy Zheng, Bjørn F. Andresen i John Lester Miller. SPIE, 2020. http://dx.doi.org/10.1117/12.2558343.

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Witzigmann, Bernd, Hossein Jeddi, Xulu Zheng, Lukas Hrachowina, Magnus T. Borgström i Hakan Pettersson. "Theoretical analysis of photogating in InP nanowire arrays with embedded InAsP quantum discs". W Physics and Simulation of Optoelectronic Devices XXX, redaktorzy Marek Osiński, Yasuhiko Arakawa i Bernd Witzigmann. SPIE, 2022. http://dx.doi.org/10.1117/12.2608579.

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Fukushima, Shoichiro, Masaaki Shimatani i Shinpei Ogawa. "Pyroelectric photogating effect on graphene-based long-wavelength infrared photodetectors at room temperature". W Infrared Technology and Applications XLVIII, redaktorzy Gabor F. Fulop, Masafumi Kimata, Lucy Zheng, Bjørn F. Andresen, John Lester Miller i Young-Ho Kim. SPIE, 2022. http://dx.doi.org/10.1117/12.2616843.

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Shimatani, Masaaki, Takashi Ikuta, Yuri Sakamoto, Shoichiro Fukushima, Satoshi Okuda, Shinpei Ogawa i Kenzo Maehashi. "Enhanced photogating effect with turbostratic stacked graphene photodetectors for developing high-responsivity infrared sensors". W Infrared Technology and Applications XLVII, redaktorzy Gabor F. Fulop, Masafumi Kimata, Lucy Zheng, Bjørn F. Andresen i John Lester Miller. SPIE, 2021. http://dx.doi.org/10.1117/12.2585335.

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