Transparent Conducting Gallium-Doped Zinc Oxide Thin Films on Glass Substrate for Optoelectronic Device Applications

Das, Himadri Sekhar; Mishra, Santanu; Dash, Mrinal Kanti; Nandi, Prasanta K.; Maity, Subir Kumar; Khatua, Debnarayan; Chatterjee, Anindita; Guo, zhanhu; Xu, Ben Bin; Roymahapatra, Gourisankar

doi:10.30919/esmm5f841

Cited by 9 publications

(4 citation statements)

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“…Beyond the reported findings, the crystal structures of wurtzite (hexagonal) and zincite, along with their direct band gap ranging from 3.0 to 3.7 eV in pure form, high transparency, and adaptability, provide green synthesized ZnO NPs with potential applications in energy devices and storage [10] (thin films), enhancement of cement concrete properties [23]- [29] (powder and nanofluid), water purification [30]- [33] (nanofluids and thin films), engine coolants [34], EOR [35], [36] (nano fluids) and gas sensors.…”

Section: Introductionmentioning

confidence: 75%

“…Approaches aimed at creating such materials are often referred to as "green" when they involve the utilization of active components derived from natural sources to reduce toxicity levels, or as "eco-friendly" when there is a focus on balancing product quality with minimizing environmental impact during the synthesis process [4]- [9]. Zinc Oxide (ZnO) exhibits remarkable versatility and finds applications in a wide range of fields, including energy devices [10], biomedical applications [11]- [13], and sensing [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

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Colloidal Stability and Dielectric Behavior of Eco-Friendly Synthesized Zinc Oxide Nanostructures from Moringa Seeds.

Jose,

Shinde

2023

Preprint

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This research focuses on the eco-friendly synthesis of ZnO NPs from Zn (CH3COO)2·2H2O and moringa seeds. The synthesized nanostructures were characterized using various analytical techniques, including XRD, UV-VIS spectroscopy, FESEM, XPS, and Raman spectroscopy. XRD measurements and W-H plot transformation confirmed the formation of ZnO nanostructures with an average size of 24.9 nm. UV-VIS spectroscopy and Kubelka Munk curve analysis determined the direct conduction and bandgap of 3.265 eV. FESEM analysis showed low particle aggregation, with distinct grain boundaries ranging in size from 20.4 to 87.7 nm. XPS analysis confirmed the presence of Zn (2p), Zn (3p), Zn (3d), and O (1s). The Raman spectroscopy indicated that the E2H was the dominant mode, followed by E1(TO) and (E2H- E2L). ZnO thin films prepared by PLD and deposited onto silicon (100) substrate exhibited excellent morphology and well-defined topography, with a normal size distribution of grains. Zeta potential tests showed a value of approximately − 43.7 mV, indicating good stability of the colloidal suspension, possibly due to low particle aggregation. Dielectric measurements on sintered pallets at 900°C revealed high capacitance and dielectric constant at low frequencies within the temperature range of 289.935K to 310K. These findings confirmed the potential of eco-friendly synthesized ZnO for various applications, including energy devices and nanofluids.

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Section: Introductionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Colloidal Stability and Dielectric Behavior of Eco-Friendly Synthesized Zinc Oxide Nanostructures from Moringa Seeds.

Jose,

Shinde

2023

Preprint

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“…A deliberate and strategic selection of nanomaterials for the proposed microwave characterization using planar MSR was based on various applications in high frequency electronics and optoelectronics. Zinc oxide (ZnO) is a well-established semiconductor for a wide range of applications, such as thin-film transistors, transparent conductive films, and sensors [15]. ZnO-based nanomaterials have been the subject of extensive research for energy storage devices, including lithium-ion batteries and supercapacitors [16].…”

Section: Experimental Characterization Of Nanomaterials Using Msrmentioning

confidence: 99%

Microwave characterization of nanomaterials using planar slot resonator

Dhanasekaran,

Sumithra,

Kommuri

et al. 2024

J. Inst.

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Nanomaterial characterization using microwaves is needed in nanoscale semiconductor devices, microwave imaging, EM shielding, and wireless communication. Many nanomaterials are used as metallic or dielectric layers in these applications. In this paper, we report the characterization of nanomaterials using planar Microwave Slot Resonator (MSR) which was designed and studied using 3D EM simulation tool. The response of MSR is parameterized which offers a platform to calculate relative permittivity (ε r) and conductivity (σ) from measured high frequency response of nanomaterial loaded MSR. With simplified method, this microwave characterization offers accurate and faster results which be used in design, calculation and numerical analysis of nanomaterial based electronic/optoelectronic devices and sensor/shielding applications.

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“…These properties enable them to have a wide range of applications in electronic and optoelectronic devices, such as diodes. For instance, zinc oxide (ZnO)-based LEDs have been developed through research, rare-earth free tunable LEDs, organic light-emitting diodes (OLEDs) like gallium-doped ZnO thin films (TFs), ethoxylated polyethylenimine (PEIE) and ZnO at PEIE-ZnO as functional layers for OLEDs, ZnO:Gd 3+ /Yb 3+ as an emissive layer in LEDs, perovskite LEDs (PeLEDs), PeLEDs utilizing ZnO as an electron-transporting layer (ETLs)m, and AlGaN like deep ultraviolet LEDs, among others. Semiconductors are also used as potentiometers in the automotive sector, as a portable semiconductor refrigeration device, as well as in thin-film transistors (TFTs), which are of high interest for further investigation and application due to their ease of fabrication .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of a Semiconductor Diodic Bilayer PbS/CdS Made by the Chemical Bath Deposition Technique

Encinas-Terán,

Pineda-León,

Gómez-Colín

et al. 2024

ACS Omega

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In this work, we report a heterojunction formed by a PbS/CdS bilayer using the chemical bath deposition (CBD) technique because it is a relatively simple, fast, and low-cost technique; is permitted to obtain highquality thin films (TFs); and also covers large areas. Some characterizations have been carried out to confirm the identity of the involved bilayer. For the cadmium sulfide (CdS) film, optical properties such as absorption, transmission, reflection, extinction coefficient, and refractive index were measured. Moreover, the bandgap was calculated, and morphology was obtained by scanning electron microscopy (SEM). Also, X-ray diffraction (XRD) and high-resolution transmission electron microscopy (TEM) were performed for the synthesis of CdS films. On the other hand, for the synthesis of lead sulfide (PbS) films, we performed TEM, energy-dispersive spectroscopy, and XRD. A surface morphological SEM image of the PbS film synthesized was also taken. The multiheterojunction PbS/CdS bilayer was characterized by the current−voltage (I−V) curve, and the behavior of the bilayer was evaluated under the conditions of darkness and controlled fixed lighting, detecting a very slight photosensitivity of the complete diodic device through those measurements. The calculated bandgap for the CdS TF was E g = 2.55 eV, while after a chosen thermal annealing, the bandgap decreased to 2.38 eV. On the other hand, the PbS film presented a cubic structure.

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Transparent Conducting Gallium-Doped Zinc Oxide Thin Films on Glass Substrate for Optoelectronic Device Applications

Cited by 9 publications

References 0 publications

Colloidal Stability and Dielectric Behavior of Eco-Friendly Synthesized Zinc Oxide Nanostructures from Moringa Seeds.

Colloidal Stability and Dielectric Behavior of Eco-Friendly Synthesized Zinc Oxide Nanostructures from Moringa Seeds.

Microwave characterization of nanomaterials using planar slot resonator

Synthesis and Characterization of a Semiconductor Diodic Bilayer PbS/CdS Made by the Chemical Bath Deposition Technique

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