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Amorphous sillicon photodiode'

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An amorphous silicon photodiode is a key component in various optoelectronic devices. It typically consists of a photodiode structure with an amorphous silicon layer, electrodes, and sometimes additional layers for improved performance. The use of amorphous silicon in photodiodes offers advantages such as ease of fabrication and compatibility with large-scale production processes. To enhance the efficiency and reduce dark current in amorphous silicon devices, techniques like incorporating nitrogen-doped indium tin oxide films or barrier metal films made of high-melting point metals have been proposed. These innovations aim to improve the overall performance and reliability of amorphous silicon photodiodes for various applications in light detection and energy conversion technologies.

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Patent Amorphous silicon photodiode and its manufacture Takasaki Kanetake, Ri Narimoto - Show less +1 more 03 Feb 1989 1 Citations	The paper discusses a high-performance amorphous silicon photodiode structure with an indium tin oxide film containing nitrogen, aiming to reduce dark current and inhibit In diffusion into amorphous silicon.
Patent Amorphous silicon photodiode Ri Narimoto 29 Jan 1990 3 Citations	The paper discusses reducing leak current in amorphous silicon photodiodes by using a barrier metal film between the amorphous silicon film and aluminum electrode, enhancing device performance.
Patent CMOS photodetector comprising an amorphous silicon photodiode Yvon Cazaux 07 May 2002	The CMOS photodetector in the paper includes an amorphous silicon photodiode, which plays a crucial role in detecting light and measuring its potential accurately within the circuit design.
Patent Photod-tecteur CMOS comportant une photodiode en silicium amorphe Yvon Cazaux 07 May 2002	The paper discusses a CMOS photodetector with an amorphous silicon photodiode, utilizing MOS transistors for initialization and measuring the cathode potential, enhancing performance during initialization phase.
Patent Solar cell of thin amorphous sillicon film and method of making the solar cell Song Chung Dam 12 Jun 2008 3 Citations	Not addressed in the paper.

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Related Questions

What are the amorphous material ?4 answersAmorphous materials are metastable solids with only short-range order at the atomic scale. They lack long-range order typical of crystals and have unconventional structural features such as isotropic atomic environments, abundant surface dangling bonds, and highly unsaturated coordination. These materials have aroused attention in the field of electrochemical energy storage and conversion due to their specific characteristics, such as intrinsic isotropy, defect distribution, and structural flexibility. Amorphous materials also show promise in electrocatalysis, providing a green way to access low carbon substances like hydrogen and ammonia. Physicists have been interested in finding a theory that predicts the behavior of amorphous solids based on their microstructure. Additionally, amorphous alloys have been developed with characteristics such as good strength, high hardness, and good abrasion resistance, making them suitable for various applications, including support and folding structures for mobile phones with folding screens.

Amorphous silicon (a-Si),5 answersAmorphous silicon (a-Si) is a material that has been studied in various contexts. It has been used in photovoltaic (PV) technologies to analyze the performance of PV modules under different climate conditions. It has also been integrated into greenhouse structures as semi-transparent PV glass, which has been found to have a negligible influence on horticultural crop growth. In the field of radiotherapy, a-Si electronic portal imaging devices (EPIDs) have been used as dosimeters and have shown similar and proportional increases in signals with increasing dose. Additionally, a-Si has been studied in terms of its crystallization properties, with aluminum-induced crystallization techniques showing successful crystallization of a-Si layers. Finally, a-Si has been used in silicon heterojunction solar cells to passivate the crystal silicon surface and improve the efficiency of the cells.

How is amorphous carbon being developed as a photovoltaic material?4 answersAmorphous carbon (a-C) is being developed as a photovoltaic material through various methods. One approach is the production of a-C films on Indium Tin Oxide (ITO) using palmyra sap as a bioproduct. Another method involves the preparation of a-C films through chemical vapor deposition (CVD) using an organic molecule called 2,4,6-Tris(dimethylamino)-1,3,5-triazine (C9H18N6). Additionally, a-C can be synthesized from bio-products such as palmyra wine and palmyra brown sugar, and then deposited on ITO substrates using a spin coating method. The structure, bonding, stoichiometry, and hydrogen content of a-C can be varied to tune its optical and electronic properties for photovoltaic applications. Furthermore, a novel aerosol-assisted chemical vapor deposition (AACVD) method using camphor oil as a precursor has been developed to fabricate a-C solar cells. These advancements highlight the potential of a-C as a photovoltaic material and demonstrate the importance of exploring different synthesis techniques and material properties for improved efficiency.

How does amorphous materials?5 answersAmorphous materials are metastable solids with only short-range order at the atomic scale, lacking long-range periodicity typical of crystals. They have unique structural features such as isotropic atomic environments, abundant surface dangling bonds, and highly unsaturated coordination. The formation of amorphous materials can be achieved through rapid solidification methods or by mixing atoms to achieve a disordered state. Amorphous materials have been extensively studied, and their atomic structure, formation criteria, and preparation methods have been summarized. In addition, amorphous materials have been used in character manipulation tasks, such as spreading, gathering, and flipping, where reinforcement learning is used to train controllers to manipulate these materials. The presence of dynamic disorder in liquids complicates matters, but the average atomic structure of liquids can be described similarly to that of amorphous solids.

What is the band gap of SiO2?2 answersThe band gap of SiO2 is dependent on various factors such as sphere size, annealing temperature, and the presence of defects. Increasing sphere size leads to a red shift in the position of the [111] photonic band gap (PBG). Si/SiO2 quantum wells have been studied extensively for efficient light emission in silicon nanostructures. The band gap of these quantum wells has been measured using optical techniques, and strong confinement effects have been observed. Si3N2 has a predicted band gap of 1.05 eV and 1.19 eV at ambient pressure, as determined by first-principles calculations using density functional theory. Si nanocrystals embedded in SiO2 matrix have been studied, and the effective band gap has been calculated as a function of their diameter. The results show good agreement with experimental data.

What are the different types of crystalline silicon photovoltaics?5 answersCrystalline silicon photovoltaics can be categorized into different types based on their characteristics and applications. One type is multicrystalline silicon, which makes up over half of all commercially available solar cells. Another type is neutral-colored transparent crystalline silicon, which is achieved by placing microhole-shaped light transmission windows on a bare c-Si wafer. There is also a crystalline silicon solar cell that includes an Al electrode, p type Si base body layer, n type Si diffusion layer, and a front face ZnO base thin film layer. Additionally, crystalline semiconductors like silicon, germanium, and III-V compounds are used in the production of solar cells. Overall, the dominant material for crystalline silicon photovoltaics is silicon, and there is a growing emphasis on high-efficiency solar cells and technology advancements.

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