Fabrication of a low cost microcontroller based spray pyrolysis system for thin film deposition

2016 ◽  
Author(s):  
Md. Sifatul Muktadir
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Low Cost ◽  
Thin Film Deposition ◽  
Film Deposition

scholarly journals A review on Spray pyrolysis deposited CZTS thin films for solar cell applications

2021 ◽  
Vol 23 (09) ◽  
pp. 1196-1206
Author(s):  
C.S.A. Raj ◽  
◽  
S. Sebastian ◽  
Susai Rajendran ◽  
◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cell ◽  
Spray Pyrolysis ◽  
Low Cost ◽  
Thin Film Deposition ◽  
Research Area ◽  
Film Deposition ◽  
Deposition Technique ◽  
Czts Thin Films

Cu2ZnSnS4 generally abridged as CZTS is a potential material for economical thin film solar cells, due to its appropriate band gap energy of around 1.5 eV and great absorption coefficient of above 104 cm-1. All the constituents of this material are plentiful in the earth’s crust, and they are non-hazardous making it an elegant alternative. Subsequent to the early achievement of the CZTS based solar cell with its light to electrical conversion efficiency of 0.6%, significant advancement in this research area has been attained, particularly in the last seven years. Currently, the conversion effectiveness of the CZTS thin film solar cell has enhanced to 24%. More than 500 papers on CZTS have been available and the greater part of these converses the preparation of CZTS thin films by diverse methods. Until now, many physical and chemical methods have been engaged for preparing CZTS thin films. Amongst them, spray pyrolysis is a flexible deposition technique. Spray pyrolysis is a simple deposition technique that finds use in widespread areas of thin film deposition research. This method is appropriate for depositing good quality films with low cost, clean deposition, and simplicity and flexibility in the manufacturing design. This script, reviews the synthesis of CZTS semiconductor thin films deposited by spray pyrolysis. This analysis initiates with a portrayal of the spray pyrolysis system, and then establish the CZTS and preparation of the CZTS precursor for coating. A review of spray pyrolysis of CZTS thin films are discussed in detail. To conclude, we present perspectives for advancements in spray pyrolysis for a CZTS based solar cell absorber layer.

scholarly journals Bias Stress in Organic Thin-Film Transistors Towards Low-Cost Flexible Gas Sensors

2021 ◽  
Vol 16 (2) ◽  
pp. 1-11
Author(s):  
José Enrique Eirez Izquierdo ◽  
José Diogo da Silva Oliveira ◽  
Vinicius Augusto Machado Nogueira ◽  
Dennis Cabrera García ◽  
Marco Roberto Cavallari ◽  
...  
Keyword(s):  
Thin Film ◽  
Flexible Electronics ◽  
Thin Film Transistors ◽  
Low Cost ◽  
Thin Film Deposition ◽  
Dielectric Surface ◽  
Organic Thin Film Transistors ◽  
Film Deposition ◽  
Organic Thin Film ◽  
Bias Stress

This work is focused on the bias stress (BS) effects in Organic Thin-Film Transistors (OTFTs) from poly(2,5-bis(3-alkylthiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT-C14) on both highly-doped Si and glass substrates. While the former had a thermally-grown SiO2 dielectric, the latter demanded an alternative dielectric that should be capable to withstand bottom contact lithography, as well as semiconducting thin-film deposition. In addition, it should represent one more step towards flexible electronics. In order to do that, poly(4-vinylphenol) (PVP) was blended to poly(melamine-co-formaldehyde) methylated (PMF). OTFTs on glass with a cross-linked polymer dielectric had a charge carrier mobility (μ) of 4.0x10-4 cm2/Vs, threshold voltage (VT) of 18 V, current modulation (ION/OFF) higher than 1x102, and subthreshold slope (SS) of -7.7 V/dec. A negative BS shifted VT towards negative values and produced an increase in ION/OFF. A positive BS, on the other hand, produced the opposite effect only for OTFTs on Si. This is believed to be due to a higher trapping at the PVP:PMF interface with PBTTT-C14. Modeling the device current along time by a stretched exponential provided shorter time constants of ca. 105 s and higher exponents of 0.7–0.9 for devices on glass. Due to the presence of increased BS effects, the application of organic TFTs based on PVP:PMF as flexible sensors will require compensating circuits, lower voltages or less measurements in time. Alternatively, BS effects could be reduced by a dielectric surface treatment.

Spray Pyrolysis Thin Film Deposition Technique for Micro-Sensors and Devices

2020 ◽  
pp. 178-202
Author(s):  
Monoj Kumar Singha ◽  
Vineet Rojwal
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Thin Film Deposition ◽  
Deposition Process ◽  
Film Deposition ◽  
Deposition Technique ◽  
Uv Photodetector ◽  
Spray Process ◽  
Spray Pyrolysis Deposition ◽  
Deposition Techniques

Thin film is used for sensing and electronic devices applications. Various techniques are used for thin film deposition. This chapter presents the Spray pyrolysis deposition technique used for the growth of thin films sensing and device material. Spray pyrolysis is an inexpensive method to grow good crystalline thin film compared to other thin film deposition techniques. The chapter gives an overview of the spray process used for thin film deposition. Basic setup for this process is explained. Parameters affecting the deposition process is explained, as are the various spray methods. Finally, some examples of spray pyrolysis in different applications like a gas sensor, UV photodetector, solar cell, photocatalysis, and supercapacitor are discussed.

scholarly journals Transparent ZnO Thin-Film Deposition by Spray Pyrolysis for High-Performance Metal-Oxide Field-Effect Transistors

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3423 ◽  
Author(s):  
Junhee Cho ◽  
Seongkwon Hwang ◽  
Doo-Hyun Ko ◽  
Seungjun Chung
Keyword(s):  
Thin Film ◽  
Metal Oxide ◽  
Spray Pyrolysis ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Spray Pyrolysis Technique ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Zno Films ◽  
Process Conditions

Solution-based metal oxide semiconductors (MOSs) have emerged, with their potential for low-cost and low-temperature processability preserving their intrinsic properties of high optical transparency and high carrier mobility. In particular, MOS field-effect transistors (FETs) using the spray pyrolysis technique have drawn huge attention with the electrical performances compatible with those of vacuum-based FETs. However, further intensive investigations are still desirable, associated with the processing optimization and operational instabilities when compared to other methodologies for depositing thin-film semiconductors. Here, we demonstrate high-performing transparent ZnO FETs using the spray pyrolysis technique, exhibiting a field-effect mobility of ~14.7 cm2 V−1 s−1, an on/off ratio of ~109, and an SS of ~0.49 V/decade. We examine the optical and electrical characteristics of the prepared ZnO films formed by spray pyrolysis via various analysis techniques. The influence of spray process conditions was also studied for realizing high quality ZnO films. Furthermore, we measure and analyze time dependence of the threshold voltage (Vth) shifts and their recovery behaviors under prolonged positive and negative gate bias, which were expected to be attributed to defect creation and charge trapping at or near the interface between channel and insulator, respectively.

Peculiarities of SnO2 thin film deposition by spray pyrolysis for gas sensor application

2001 ◽  
Vol 77 (1-2) ◽  
pp. 244-252 ◽  
Author(s):  
G Korotcenkov ◽  
V Brinzari ◽  
J Schwank ◽  
M DiBattista ◽  
A Vasiliev
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Gas Sensor ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Sno2 Thin Film ◽  
Sensor Application

scholarly journals Fabrication and Characterization of a Metallic–Dielectric Nanorod Array by Nanosphere Lithography for Plasmonic Sensing Application

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1691 ◽  
Author(s):  
Yuan-Fong Chou Chau ◽  
Kuan-Hung Chen ◽  
Hai-Pang Chiang ◽  
Chee Ming Lim ◽  
Hung Ji Huang ◽  
...  
Keyword(s):  
Thin Film ◽  
Low Cost ◽  
Three Dimensional ◽  
Nanosphere Lithography ◽  
Thin Film Deposition ◽  
Nanorod Array ◽  
Film Deposition ◽  
Refractive Index Sensor ◽  
Plasmonic Sensor ◽  
Three Dimensional Finite Element

In this paper, a periodic metallic–dielectric nanorod array which consists of Si nanorods coated with 30 nm Ag thin film set in a hexagonal configuration is fabricated and characterized. The fabrication procedure is performed by using nanosphere lithography with reactive ion etching, followed by Ag thin-film deposition. The mechanism of the surface and gap plasmon modes supported by the fabricated structure is numerically demonstrated by the three-dimensional finite element method. The measured and simulated absorptance spectra are observed to have a same trend and a qualitative fit. Our fabricated plasmonic sensor shows an average sensitivity of 340.0 nm/RIU when applied to a refractive index sensor ranging from 1.0 to 1.6. The proposed substrates provide a practical plasmonic nanorod-based sensing platform, and the fabrication methods used are technically effective and low-cost.

Low-cost thin-film deposition apparatus for solar applications

2014 ◽  
Author(s):  
Melissa Dutter ◽  
Kyle Davis ◽  
Robert Spelman ◽  
Joel Groetsema ◽  
Keith Hutchison ◽  
...  
Keyword(s):  
Thin Film ◽  
Low Cost ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Solar Applications

SnS$_{2}$ Thin Film Deposition by Spray Pyrolysis

2012 ◽  
Vol 51 ◽  
pp. 065801 ◽  
Author(s):  
Abdallah Yahia Jaber ◽  
Saleh Noaiman Alamri ◽  
Mohammed Salah Aida
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Thin Film Deposition ◽  
Film Deposition
Sign in / Sign up

Export Citation Format

Share Document