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Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition


Šarić, Iva; Peter, Robert; Kavre Piltaver, Ivna; Jelovica Badovinac, Ivana; Ambrožić, Gabriela; Petravić, Mladen.
Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition // Program and book of abstracts / 16th Joint Vacuum Conference (JVC-16) [and] 14th European Vacuum Conference (EVC-14) [and] 23rd Croatian-Slovenian Vacuum Meeting, [6-10 June 2016, Portorož, Slovenia] ; [organised by Slovenian Society for Vacuum Technique (DVTS)] / Kovač, Janez ; Jakša, Gregor (ur.).
Ljubljana: Slovenian Society for Vacuum Technique, 2016. str. 68-68 (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition

Autori
Šarić, Iva ; Peter, Robert ; Kavre Piltaver, Ivna ; Jelovica Badovinac, Ivana ; Ambrožić, Gabriela ; Petravić, Mladen.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Program and book of abstracts / 16th Joint Vacuum Conference (JVC-16) [and] 14th European Vacuum Conference (EVC-14) [and] 23rd Croatian-Slovenian Vacuum Meeting, [6-10 June 2016, Portorož, Slovenia] ; [organised by Slovenian Society for Vacuum Technique (DVTS)] / Kovač, Janez ; Jakša, Gregor - Ljubljana : Slovenian Society for Vacuum Technique, 2016, 68-68

ISBN
978-961-92989-8-5

Skup
16th Joint Vacuum Conference / 14th European Vacuum Conference / 23th CroatianSlovenian International Scientific Meeting on Vacuum Science and Technique

Mjesto i datum
Portorož, Slovenija, 6-10.06.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Titanium dioxide ; Atomic layer deposition ; Residual chlorine ; Thin films ; Crystallization

Sažetak
Among metal-oxide semiconductors, titanium dioxide (TiO2) is one of the most promising materials for many applications, ranging from microelectronics to photo catalysis or medical device materials. In recent years, Atomic Layer Deposition (ALD) technique has been extensively used for the growth of thin TiO2 fi lms. The main advantages of ALD are excellent thickness control and the high conformity of the obtained fi lms. In comparison with the conventional thermal ALD, plasma-enhanced ALD (PEALD) enables the higher growth rate at reduced substrate temperatures, which is especially important for the growth of thin fi lms on temperature sensitive materials. In the case when titanium tetrachloride (TiCl4) is used as the ALD precursor for the synthesis of thin TiO2 fi lms, some chlorine impurities remain present in the resulting inorganic material. The assessment of Cl impurities is particularly important for the photocatalytical applications where the incorporated chlorine lowers the energy gap of TiO2, thus enabling its absorption to higher wavelength, or aff ecting performances of the TiO2-based catalytic systems including fuel cells, alkane dehydrogenation and water splitting systems and lithium−O2 batteries. In the present work we present a comprehensive study of residual chlorine impurities within the TiO2 fi lms grown on silicon substrates using ALD and PEALD techniques at a wide temperature range. By using plasma, it was possible to signifi cantly lower the deposition temperatures and achieve better quality of fi lms with lower amount of impurities. We have employed Secondary Ion Mass Spectrometry for the in-depth elemental analysis and the determination of the thickness of TiO2 layers, while chemical bonding of Cl was determined from X-ray Photoemission Spectroscopy measurements. In addition, the surface topography, conformity, composition and fi lm thickness was studied with Scanning Electron Microscopy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Sveučilište u Rijeci - Odjel za fiziku

Citiraj ovu publikaciju

Šarić, Iva; Peter, Robert; Kavre Piltaver, Ivna; Jelovica Badovinac, Ivana; Ambrožić, Gabriela; Petravić, Mladen.
Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition // Program and book of abstracts / 16th Joint Vacuum Conference (JVC-16) [and] 14th European Vacuum Conference (EVC-14) [and] 23rd Croatian-Slovenian Vacuum Meeting, [6-10 June 2016, Portorož, Slovenia] ; [organised by Slovenian Society for Vacuum Technique (DVTS)] / Kovač, Janez ; Jakša, Gregor (ur.).
Ljubljana: Slovenian Society for Vacuum Technique, 2016. str. 68-68 (poster, međunarodna recenzija, sažetak, znanstveni)
Šarić, I., Peter, R., Kavre Piltaver, I., Jelovica Badovinac, I., Ambrožić, G. & Petravić, M. (2016) Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition. U: Kovač, J. & Jakša, G. (ur.)Program and book of abstracts / 16th Joint Vacuum Conference (JVC-16) [and] 14th European Vacuum Conference (EVC-14) [and] 23rd Croatian-Slovenian Vacuum Meeting, [6-10 June 2016, Portorož, Slovenia] ; [organised by Slovenian Society for Vacuum Technique (DVTS)].
@article{article, year = {2016}, pages = {68-68}, keywords = {Titanium dioxide, Atomic layer deposition, Residual chlorine, Thin films, Crystallization}, isbn = {978-961-92989-8-5}, title = {Investigation of residual chlorine in TiO2 fi lms grown by atomic layer deposition}, keyword = {Titanium dioxide, Atomic layer deposition, Residual chlorine, Thin films, Crystallization}, publisher = {Slovenian Society for Vacuum Technique}, publisherplace = {Portoro\v{z}, Slovenija} }