Development of AZO TCOs with ALD for HEMT and HJSC solar cell applications

Date

2020-10-04

Author

Tugrul, Deniz
Cakmak, Huseyin
Özbay, Ekmel
İmer, Muhsine Bilge

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

232
views

13
downloads

Transparent Conductive Oxide (TCO) films are widely used in optoelectronic devices, such as solar cells, LEDs, and Lasers. Utilization of these contacts directly affects the device efficiencies. These films can be produced with solid, liquid and vapor phase deposition techniques. Generally, metal oxides such as CdO, In2O3, SnO2, Ga2O3 and ZnO can be used in these structures as intrinsic or extrinsic semiconductors. Purpose of this study is to reproduce widely studied Aluminium doped Zinc Oxide (AZO) using a vapor phase technique, Atomic Layer Deposition (ALD) and optimize the doping concentration, electrical and optical properties, thickness for (n+) a-Si:H surface of silicon heterojunction solar cells (HJSCs) and high electron mobility transistor (HEMT) applications. The results show that as-deposited films have 80-90% transmittance in the visible spectra, low resistance (1.57x10-3 ohm.cm) and good mobility (10.69 cm2/V.s).

URI

https://hdl.handle.net/11511/93564

Conference Name

International Conference on Advanced Materials Science & Engineering and High Tech Device Applications - ICMATSE

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Development of AZO TCOs with ALD for HEMT and HJSC Solar Cell Applications Tugrul, Deniz; Cakmak, Huseyin; Özbay, Ekmel; İmer, Muhsine Bilge (2021-12-01) Transparent Conductive Oxide (TCO) films are widely used in optoelectronic devices, such as solar cells, LEDs, and Lasers. Utilization of these contacts directly affects the device efficiencies. Purpose of this study is to produce and optimize properties of Aluminum doped Zinc Oxide (AZO) using a vapor phase technique, Atomic Layer Deposition (ALD) for (n+) a-Si:H surface of silicon Heterojunction Solar Cells (HJSCs) and High Electron Mobility Transistor (HEMT) applications. This study is focused on the eff...
Design, syntheses and structure-property relationships of benzazole and isoindigo comprising conducting polymers/ Göker, Seza; Toppare, Levent Kamil; Department of Chemistry (2019) Donor–acceptor (D–A) conjugated polymers have been widely used for potential applications such as organic light emitting diodes, solar cells, electrochromic devices and organic field effect transistors. Benzazole comprising conducting polymers are popular for the last few decades since they can be used as low-band-gap donor materials because of their strong intramolecular charge transfer characteristics and excellent photovoltaic performances. Strong electron-donating and withdrawing building blocks are nec...
Characterization and contact resistivity studies of ito thin films for use in silicon heterojunction solar cells Güler, Seçil; Erçelebi, A. Çiğdem.; Department of Physics (2020) Transparent conductive oxides (TCO) are widely used in optoelectronic devices such as flat panel displays and solar cells. Indium tin oxide, due to its wide optical bandgap and high transmittance in the visible spectrum, is commonly used for device applications such as anti-reflective coating, front TCO layer in silicon heterojunction solar cells. When ITO is used as TCO layer, the carrier transport mechanism through the junction is improved due to the decrease in the free carrier absorption. In this study,...
Development of hole transport transparent conductive electrodes for n-type crystalline silicon solar cells Akdemir, Ozan; Bek, Alpan; İmer, Muhsine Bilge; Department of Micro and Nanotechnology (2018) Conventional transparent conductive electrodes (TCEs) used in crystal silicon (c-Si) solar cells are commonly made of indium tin oxide (ITO) which provides low sheet resistance and high transparency. However, due to indium scarcity, ITO layers increase the fabrication cost; thus, alternative TCEs, such as fluorine-doped tin oxide (FTO), zinc oxide (ZnO), metal nanowires and Oxide/Metal/Oxide (OMO) multilayers, are being investigated. Conventional solar cells also make use of doped layers, to create the junc...
Development of indium tin oxide (ITO) nanoparticle incorporated transparent conductive oxide thin films Yavaş, Hakan; Durucan, Caner; Department of Metallurgical and Materials Engineering (2012) Indium tin oxide (ITO) thin films have been used as transparent electrodes in many technological applications such as display panels, solar cells, touch screens and electrochromic devices. Commercial grade ITO thin films are usually deposited by sputtering. Solution-based coating methods, such as sol-gel however, can be simple and economic alternative method for obtaining oxide films and also ITO. In this thesis, “ITO sols” and “ITO nanoparticle-incorporated hybrid ITO coating sols” were prepared using indi...

Citation Formats

D. Tugrul, H. Cakmak, E. Özbay, and M. B. İmer, “Development of AZO TCOs with ALD for HEMT and HJSC solar cell applications,” Ankara, Türkiye, 2020, vol. 1, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/93564.