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CuO–TiO_(2) based self-powered broad band photodetector

Nano Materials Science 2024年第3期6卷 345-354页

作者： Chiranjib Ghosh Arka Dey Iman Biswas Rajeev Kumar Gupta Vikram Singh Yadav Ashish Yadav Neha Yadav Hongyu Zheng mohamed henini Aniruddha Mondal Department of Physics National Institute of Technology DurgapurWest BengalIndia Department of Physics University of Petroleum&Energy Studies DehradunUttarakhandIndia Babasaheb Bhimrao Ambedkar University Lucknow226031India Center for Advanced Laser Manufacturing(CALM) Shandong University of TechnologyZibo255000PR China School of Physics and Astronomy University of NottinghamNottinghamNG72RDUnited Kingdom

An efficient room-temperature self-powered,broadband(300 nm–1100 nm)photodetector based on a CuO–TiO_(2)/TiO_(2)/p-Si(100)heterostructure is *** CuO–TiO_(2)nanocomposites were grown in a two-zone horizontal tube furnace on a 40 nm TiO_(2)thin film deposited on a p-type Si(100)*** CuO–TiO_(2)/TiO_(2)/p-Si(100)devices exhibited excellent rectification characteristics under dark and individual photoillumination *** devices showed remarkable photo-response under broadband(300–1100 nm)light illumination at zero bias voltage,indicating the achievement of highly sensitive self-powered photodetectors at visible and near-infrared light *** maximum response of the devices is observed at 300 nm for an illumination power of 10 *** response and recovery times were calculated as 86 ms and 78 ms,***,under a small bias,the devices showed a prompt binary response by altering the current from positive to negative under illumination *** main reason behind this binary response is the low turn-on voltage and photovoltaic characteristics of the *** illumination conditions,the generation of photocurrent is due to the separation of photogenerated electron-hole pairs within the built-in electric field at the CuO–TiO_(2)/TiO_(2)*** characteristics make the CuO–TiO_(2)/TiO_(2)broadband photodetectors suitable for applications that require high response speeds and self-sufficient functionality.

关键词： Self-powered CuO–TiO_(2) nanocomposite Broadband photodetector Two-zone horizontal tube furnace Responsivity

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CuO–TiO2 based self-powered broad band photodetector

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纳米材料科学 2024年第3期 345页

作者： Chiranjib Ghosh Arka Dey Iman Biswas Rajeev Kumar Gupta Vikram Singh Yadav Ashish Yadav Neha Yadav Hongyu Zheng mohamed henini Aniruddha Mondal

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Comparative study of various methods for extraction of multi-quantum wells Schottky diode parameters

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Journal of Semiconductors 2020年第10期41卷 45-49页

作者： Elyes Garoudja Walid Filali Slimane Oussalah Noureddine Sengouga mohamed henini Plateforme Technologique de Microfabrication Centre de Développement des Technologies Avancéescité20 août 1956Baba HassenAlgiersAlgeria Microelectronics and Nanotechnology Division Centre de Développement des Technologies Avancéescité20 août 1956Baba HassenAlgiersAlgeria Laboratory of Metallic and Semiconducting Materials Universitéde BiskraB.P 45507000 Biskra RPAlgeria School of Physics and Astronomy Nottingham Nanotechnology and Nanoscience CenterUniversity of NottinghamNottinghamNG72RDUK

In this work,forward current voltage characteristics for multi-quantum wells Al_(0.33)Ga_(0.67)As Schottky diode were measured at temperature ranges from 100 to 300 *** main parameters of this Schottky diode,such as the ideality factor,barrier height,series resistance and saturation current,have been extracted using both analytical and heuristics *** evolution(DE),particle swarm optimization(PSO)and artificial bee colony(ABC)have been chosen as candidate heuristics algorithms,while Cheung technic was selected as analytical extraction *** obtained results show clearly the high performance of DE algorithms in terms of parameters accuracy,convergence speed and robustness.

关键词： barrier height heuristic methods multi-quantum wells parameters extraction Schottky diode

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