Chemical bath deposited ZnO thin film based UV photoconductive detector

Shaikh, Shahin; Inamdar, S.I.; Ganbavle, V.V.; Rajpure, K.Y.

doi:10.1016/j.jallcom.2015.12.226

Cited by 131 publications

(49 citation statements)

References 43 publications

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“…The chemical bath deposition and sol–gel technique are also well known methods of preparation of ZnO thin films. Among these methods, spray pyrolysis is useful in wide range of applications [11, 12]. This method is cheaper, simpler and permits to obtain films for optoelectronic applications with required properties.…”

Section: Introductionmentioning

confidence: 99%

Structural, Optical and Electrical Properties of Zinc Oxide Layers Produced by Pulsed Laser Deposition Method

et al. 2017

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The structural, optical, and electrical properties of zinc oxide (ZnO) layers manufactured at different process conditions were investigated. ZnO epitaxial layers were grown on silicon, glass, and ITO/glass substrates by pulsed laser deposition (PLD) technique. The influence of power beam, substrate temperature, and deposition time on films properties was analysed. Morphological features of the film surface were investigated by scanning electron microscopy. A structural study shown planar orientation of films at low temperatures of substrate, but the columnar type of growth originated in temperature enhances. Electrical properties were determined in the temperature range 300–500 K. It was shown that the type of films conductivity is metallic and it is limited by charge transfer across grain boundaries.

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Section: Introductionmentioning

confidence: 99%

Structural, Optical and Electrical Properties of Zinc Oxide Layers Produced by Pulsed Laser Deposition Method

et al. 2017

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“…Since the device performance mainly depends on the active materials and device architectures, they are the subject of extensive work, and there have been many achievements. Dispersible inorganic materials vastly simplify the preparation of films while maintaining good electrical conductivity; organic small‐molecule materials and polymer materials have wide wavelength response, especially in visible region, and can be adjusted easily by changing the functional groups; organic–inorganic hybrid material systems are also a promising development direction, combining good electrical and optical properties; in addition, the perovskite series of organic–inorganic hybrid materials has become a new research direction due to their excellent optoelectronic properties . In addition, varieties of microstructures including nanoparticles, nanowires, nanosheets etc., have been widely investigated, and they have a wide range of applications in devices benefiting from their peculiar characteristics, like quantum size effect and anisotropy .…”

Section: Introductionmentioning

confidence: 99%

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

Lin

Wang

2019

Advanced Materials

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Since the device performance mainly depends on the active materials and device architectures, they are the subject of extensive work, and there have been many achievements. Dispersible inorganic materials vastly simplify the preparation of films while maintaining good electrical conductivity; [1][2][3][4][5] organic small-molecule materials and polymer materials have wide wavelength response, especially in visible region, and can be adjusted easily by changing the functional groups; [6][7][8][9][10] organic-inorganic hybrid material systems are also a promising development direction, combining good electrical and optical properties; [11][12][13][14][15] in addition, the perovskite series of organic-inorganic hybrid materials has become a new research direction due to their excellent optoelectronic properties. [16][17][18][19][20] In addition, varieties of microstructures including nanoparticles, nanowires, nanosheets etc., have been widely investigated, and they have a wide range of applications in devices benefiting from their peculiar characteristics, like quantum size effect and anisotropy. [21][22][23][24][25] Besides working on active materials, constructing diverse device architectures is also a convenient and effective approach. [26][27][28][29][30] The fabrication of blend, bilayer, and multilayer architectures would be conducive to increasing responsivity, extending detection range, and accelerating response speed.Here, from active materials to device architectures, we systematically introduce and discuss the strategies for improving the device performance of solution-processed lateral PDs. To begin with, we briefly expound the working mechanism of the lateral PDs and clarify the key device figures-of-merit. Then, based on the active materials, we divide the devices into four categories: inorganic, organic, hybrid, and perovskite, and their corresponding improvement methods are summarized respectively. To close, we conduct a physical generalization and propose detailed suggestions for the further development of the field. Device Working PrincipleThe structures of lateral PDs are quite simple: an active layer between two parallel electrodes or using three electrodes (source, drain, and gate) for better control; and the detection of light mainly originates from the change of conductivity, which is caused by the increase of the carrier concentration under illumination.Due to their low cost and ease of integration, solution-processed lateral photodetectors (PDs) are becoming an important device type among the PD family. In recent years, enormous effort has been devoted to improving their performances, and great achievements have been made. A summary of the core progress, especially from the perspective of design principles and device physics, is necessary to further the development of the field, but is currently lacking. Here, to address this need, first, the working mechanism of PDs and the device figures-of-merit are introduced. Second, by classifying the active materials into four categories, including in...

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“…So far, Zn 1-x Mg x O films are mainly deposited by vacuum techniques, such as molecular beam epitaxy (MBE) [8,9], pulsed laser deposition (PLD) [3,10], atomic layer deposition (ALD) [11,12] or sputtering [13,14]. In order to decrease capital investment and maintenance costs for deposition equipment, solution-based techniques can be highly advantageous.…”

Section: Introductionmentioning

confidence: 99%

Mg-doped ZnO films prepared by chemical bath deposition

et al. 2018

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A simple, low-temperature route for the chemical bath deposition of Mg-doped ZnO films, based on low-cost, abundant and non-toxic materials was developed. The film growth mechanism, the resulting morphology and texture were investigated in detail by scanning electron microscopy and X-ray diffraction measurements. It was found that substantial film growth is only possible in a narrow solution pH window due to the Zn(OH) 2 supersaturation as driving force for the film deposition. Different amounts of Mg in the solution cause distinct (0001), (10 10) or (10 11) ZnO crystal textures. Speciation modelling helped to understand the solution chemistry and explain the occurrence of different textures by face-selective adsorption of Mg species onto specific ZnO faces. The amount of incorporated Mg into the ZnO lattice, determined by inductively coupled plasma atomic emission spectroscopy, was limited to 2.1 mol%. Optical band gaps, calculated from transmittance spectra, showed an increase with higher amounts of incorporated Mg and ranged between 3.41 and 3.55 eV.

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Chemical bath deposited ZnO thin film based UV photoconductive detector

Cited by 131 publications

References 43 publications

Structural, Optical and Electrical Properties of Zinc Oxide Layers Produced by Pulsed Laser Deposition Method

Structural, Optical and Electrical Properties of Zinc Oxide Layers Produced by Pulsed Laser Deposition Method

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

Mg-doped ZnO films prepared by chemical bath deposition

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