Eco-friendly ultrafast self-powered p-Si/n-ZnO photodetector enhanced by photovoltaic-pyroelectric coupling effect

Ahmed, Anas A.; Qahtan, Talal F.; Hashim, M.R.; Nomaan, Ahlaam T.; Al-Hardan, Naif H.; Rashid, Marzaini

doi:10.1016/j.ceramint.2022.02.162

Cited by 16 publications

(3 citation statements)

References 41 publications

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“…In the context of the intensive development of novel devices, the design of small-scale, high-performance integrated photodetectors (PDs) has become a key research objective. − Semiconductor nanostructured PDs, known for their high sensitivity and outstanding responsivity, are typically powered by an external source. This requirement limits device miniaturization to a certain extent and restricts their application in fields such as chemical, medical, and biological sensing. − Conversely, self-powered PDs, which are both small in size and lightweight, offer a promising solution.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Light Trapping in ZnO Nanowire Arrays/NiO Heterojunction for Self-Powered Photodetection

Wang,

Liu,

Jiang

et al. 2024

Crystal Growth & Design

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Self-powered ultraviolet (UV) photodetectors (PDs) based on a ZnO/NiO heterojunction have garnered increasing interest due to their straightforward preparation process, exceptional photoresponse performance, and independence from external power sources. However, PDs' detection capabilities are hindered by a high concentration of defects and low carrier mobility within a heterojunction. In this study, the integration of ZnO nanowire (NW) arrays featuring light-trapping structures is explored with heterostructured thin films to optimize the optical functional layer's structure. The resulting ZnO NWs/ZnO/NiO heterojunction PDs, fabricated via RF magnetron sputtering and hydrothermal methods, exhibit significant optoelectronic behavior when exposed to light, functioning autonomously without the need for an external power supply. The synergistic effect of the heterojunction and the light-trapping structure significantly enhances the PD's overall performance. The optimized heterojunction PD demonstrates superior responsivity, detectivity, lower noise equivalent power, and enhanced external quantum efficiency. This work supports the broader application of the light-trapping effect of NWs in a heterostructure and offers novel insights into the development of practical, miniaturized self-powered UV PDs.

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Section: Introductionmentioning

confidence: 99%

Enhanced Light Trapping in ZnO Nanowire Arrays/NiO Heterojunction for Self-Powered Photodetection

Wang,

Liu,

Jiang

et al. 2024

Crystal Growth & Design

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“…Self-powered devices have become a popular research topic because they save energy and have less stringent working space requirements. − For example, a self-powered photodetector can harness ambient light energy to drive the device at zero bias. − This idea has motivated researchers to develop self-powered gas sensors with the assistance of the photovoltaic (PV) effect. , Metal oxide semiconductors (MOSs) are the most common materials for gas sensing due to their high sensitivity, fast response, low cost, and easy processing. , However, MOS-based gas sensors require an external bias to provide two functions: (1) provision of a readout signal that is generated by applying a constant bias current and measurement of the resistance changes and (2) provision of the activation energy required for gas adsorption and desorption on the surface. , The built-in electric field of a p–n heterojunction structure is usually used to create the PV effect for self-powered gas sensors. − Nevertheless, the vertical structure of the p–n heterojunction, which has two different contact metals on opposite sides, does not conform to the monolithic design, so it is difficult to integrate this structure with standard very-large-scale integration (VLSI) circuitry . Metal–semiconductor–metal (MSM) devices have a simple planar structure with an interdigital electrode.…”

Section: Introductionmentioning

confidence: 99%

Realization of a Self-Powered InGaZnO MSM Ozone Sensor via a Surface State Modulated Photovoltaic Effect

Huang

2022

ACS Appl. Electron. Mater.

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Traditional gas sensors require an external voltage to provide a readout signal for measuring the resistance/current changes. To reduce the power consumption and working area for system-on-chip applications, photovoltaic self-powered gas sensors are a promising strategy. However, most of the reported self-powered gas sensors are based on a vertical p−n junction structure with two different electrodes located on opposite sides, which is incompatible with planar circuit technology. In this study, a metal−semiconductor−metal (MSM) selfpowered ozone (O 3 ) gas sensor based on a-IGZO is successfully fabricated using localized ultraviolet treatment (UVT) which is used to selectively modify the surface states underneath different contacts. The established asymmetric Schottky barrier results in self-powered characteristics under UV illumination. The self-powered gas sensor exhibits an unbiased gas response of 74% with a response/ recovery time of 168/522 s toward 5 ppm of O 3 at room temperature. The proposed method provides insights for easy fabrication of photovoltaic self-powered gas sensors using a highly integrated MSM structure.

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“…photodetectors based on the pyroelectric effect appear to be a current research trend[56][57][58][59]. An ultrafast self-powered CsPbBr 3 QDs photodetector based on light-induced pyroelectric effect has been demonstrated with a maximum pyroelectric current of 82.6 nA under the light intensity 98 mWcm −2[60].…”

mentioning

confidence: 99%

Properties of Nanogenerator Materials for Energy-Harvesting Application

Majid,

Ahmad,

Rosli

et al. 2023

J. Res. Updates Polym. Sci.

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Advancements in nanotechnology and materials science have led to the development of a variety of nanogenerator materials with improved properties, making energy harvesting technologies increasingly viable for various applications, such as powering wearable devices, remote sensors, and even small electronic gadgets in the future. The evolution of hybrid materials consisting of polymers and nanoparticles as efficient energy harvesters and energy storage devices is in high demand nowadays. Most investigations on organic ferroelectric P(VDF-TrFE) as a polymer host of polymer nanocomposite devices were primally focused on the β phase due to its excellent electrical properties for various application purposes. Nanofiller is also introduced into the polymer host to produce a polymer nanocomposite with enhanced properties. A brief description of various physical quantities related to ferroelectric, dielectric, pyroelectric effects and Thermally Stimulated Current (TSC) for energy harvesting applications in nanogenerator materials is presented. This article explores the different materials and uses of various nanogenerators. It explains the basics of the pyroelectric effect and the structure of pyroelectric nanogenerators (PNGs), as well as recent advancements in micro/nanoscale devices. Additionally, it discusses how the performance of ferroelectric, dielectric, pyroelectric, and TSC are impacted by the annealing treatment of P(VDF-TrFE) polymer.

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Eco-friendly ultrafast self-powered p-Si/n-ZnO photodetector enhanced by photovoltaic-pyroelectric coupling effect

Cited by 16 publications

References 41 publications

Enhanced Light Trapping in ZnO Nanowire Arrays/NiO Heterojunction for Self-Powered Photodetection

Enhanced Light Trapping in ZnO Nanowire Arrays/NiO Heterojunction for Self-Powered Photodetection

Realization of a Self-Powered InGaZnO MSM Ozone Sensor via a Surface State Modulated Photovoltaic Effect

Properties of Nanogenerator Materials for Energy-Harvesting Application

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