Search results for "DEP"
showing 10 items of 10555 documents
Mechanical and optical properties of as-grown and thermally annealed titanium dioxide from titanium tetrachloride and water by atomic layer deposition
2021
Funding Information: This work was carried out within the MECHALD project funded by Business Finland (Tekes) and is linked to the Finnish Centers of Excellence in Atomic Layer Deposition (ref. 251220) and Nuclear and Accelerator Based Physics (refs. 213503 and 251353) of the Academy of Finland. Funding Information: This work was carried out within the MECHALD project funded by Business Finland (Tekes) and is linked to the Finnish Centers of Excellence in Atomic Layer Deposition (ref. 251220 ) and Nuclear and Accelerator Based Physics (refs. 213503 and 251353 ) of the Academy of Finland. Publisher Copyright: © 2021 The use of thin-films made by atomic layer deposition (ALD) is increasing in …
Evolution of microstructure and related optical properties of ZnO grown by atomic layer deposition.
2013
A study of transmittance and photoluminescence spectra on the growth of oxygen-rich ultra-thin ZnO films prepared by atomic layer deposition is reported. The structural transition from an amorphous to a polycrystalline state is observed upon increasing the thickness. The unusual behavior of the energy gap with thickness reflected by optical properties is attributed to the improvement of the crystalline structure resulting from a decreasing concentration of point defects at the growth of grains. The spectra of UV and visible photoluminescence emissions correspond to transitions near the band-edge and defect-related transitions. Additional emissions were observed from band-tail states near th…
Optical and structural properties of Al 2 O 3 /ZnO nanolaminates deposited by ALD method
2014
International audience; We report on the investigation of optical and structural properties of Al2O3/ZnO nanolaminates. The nanolaminates were deposited on Si and glass substrates by Atomic layer deposition method. Structural properties of nanolaminates were studied by SEM, GIXRD, and AFM. Optical characterization was performed by transmittance and photoluminescence spectroscopy. Complex analysis of monolayer properties was done by ellipsometry. Optical constants for Al2O3 and ZnO monolayer were calculated.
Atomic layer deposition of AlN from AlCl3 using NH3 and Ar/NH3 plasma
2018
The atomic layer deposition (ALD) of AlN from AlCl3 was investigated using a thermal process with NH3 and a plasma-enhanced (PE)ALD process with Ar/NH3 plasma. The growth was limited in the thermal process by the low reactivity of NH3, and impractically long pulses were required to reach saturation. Despite the plasma activation, the growth per cycle in the PEALD process was lower than that in the thermal process (0.4A ° vs 0.7A ° ). However, the plasma process resulted in a lower concentration of impurities in the films compared to the thermal process. Both the thermal and plasma processes yielded crystalline films; however, the degree of crystallinity was higher in the plasma process. The…
Stability, electronic structure, and optical properties of protected gold-doped silver Ag29−xAux (x = 0–5) nanoclusters
2017
In this work, we used density functional theory (DFT) and linear response time-dependent DFT (LR-TDDFT) to investigate the stability, electronic structure, and optical properties of Au-doped [Ag29-xAux(BDT)12(TPP)4]3- nanoclusters (BDT: 1,3-benzenedithiol; TPP triphenylphosphine) with x = 0-5. The aim of this work is to shed light on the most favorable doped structures by comparing our results with previously published experimental data. The calculated relative energies, ranging between 0.8 and 10 meV per atom, indicate that several doped Ag29-xAux nanoclusters are likely to co-exist at room temperature. However, only the Au-doped [Ag29-xAux(BDT)12(TPP)4]3- nanoclusters that have direct bon…
“LATVIA WILL ALWAYS BE MY HOME”: LATVIAN EMIGRANTS IN SWEDEN AFTER 1991 IN THE LATVIAN NATIONAL ORAL HISTORY COLLECTION
2020
Latvians are one of the most mobile European nations. Latvian migration to Sweden has a long history. After the II World War, more than 4,000 people moved from Latvia to Sweden, fleeing Soviet power. The second wave of immigration to Sweden began with the restoration of Latvian independence in 1991 and continues to this day. Both of these waves of migration are documented in the Latvian National Oral History collection. This article analyzes life-story interviews with expatriates in Sweden after the restoration of independence and explores how the migrants themselves describe their experiences in their new home country, their reflections on Latvians, Latvianness, and the preservation of nat…
Magny-sur-Tille (Côte-d’Or). 9 rue du Château [notice archéologique]
2019
L’opération de diagnostic archéologique « 9, rue du Château » à Magny-sur-Tille s’est déroulée du 12 au 14 février 2018. La principale occupation détectée lors de l’opération consiste en une maison forte de la période moderne, déjà largement documentée par les sources écrites et planimétriques anciennes ainsi que par un diagnostic réalisé en 2007 avant la construction d’une maison individuelle. Le quart SO de l’établissement a été appréhendé. Trois phases ont pu être mises en évidence.
Hyvä paha sosiaalinen media : organisaatioiden uhkat ja mahdollisuudet sosiaalisessa mediassa
2011
Tässä tutkimuksessa selvitettiin sosiaalisen median ja organisaatioiden suhdetta viestinnän kontekstissa. Tutkimuksen tarkoituksena oli selvittää, millaisia uhkia ja mahdollisuuksia sosiaalinen media tarjoaa organisaatioille niin nyt kuin tulevaisuudessakin. Tutkimuksen teoreettisessa osassa organisaatioiden ja sosiaalisen median suhdetta mallinnettiin kaaosteorian ja Resource Dependence -teorian avulla. Teoriaosuuden avulla organisaatioiden viestintäympäristöjä sekä sosiaalisen median vaikutusta organisaatioiden toimintaan tarkasteltiin kaaosteorian käsitteiden avulla. Tutkimuksen empiirinen osuus toteutettiin laadullisena, osin tulevaisuutta kartoittavana tutkimuksena. Tutkimusmenetelminä…
Impacto social del Gran Premio de Europa de Fórmula Uno entre los residentes del municipio de Valencia
2012
El estudio del impacto social de los eventos deportivos se enmarca dentro de las principales líneas de investigación de la gestión del deporte. El conocimiento del impacto social de los eventos deportivos puede aportar datos para establecer la mejora de la toma de decisiones que supongan una mejora de la organización de los mismos con el fin mejorar la percepción de los residentes de las ciudades que los albergan. Los objetivos principales de la presente investigación han sido, es analizar la percepción que los ciudadanos de Valencia tienen sobre la realización del Gran Premio de Europa de Fórmula Uno en la ciudad: conocimientos, intereses, actitudes, comportamientos y expectativa de dicha …
Speciation of dimethyltin(IV) – and trimethyltin(IV) – carbocysteinate and – glutamate systems in aqueous media
2008
The formation of complex species in the dimethyltin(IV) and trimethyltin(IV)-carboxymethyl-L-cysteinate (carbocysteinate) systems in NaClaq, at different ionic strengths, and in a multicomponent Na+, K+, Ca2+, Mg2+, Cl- and SO42- medium representative of the seawater major composition, is discussed. Experimental results give evidence for the formation of the following species (L¼carbocysteinate): [(CH3)2Sn(L)]0, [(CH3)2Sn(HL)]+, [(CH3)2Sn(OH)(L)]-, [(CH3)2Sn(OH)2(L)]2- in the DMT–CCYS system, and [(CH3)3Sn(HL)]0, [(CH3)3Sn(L)]- and [(CH3)3Sn(OH)(L)]2- in the TMT-CCYS system. The ionic strength dependence of formation constants was taken into account by an extended Debye Huckel type equation…