Structural and optical properties of heteroepitaxial anatase titania films on MgAl 6 O 10 (100) substrates by MOCVD
Source abstract
Abstract
Abstract Titania (TiO2) films were synthesized on MgAl6O10 (100) substrates by high vacuum metalorganic chemical vapor deposition (MOCVD). The crystal structures, surface and interface morphologies as well as the optical properties of the obtained TiO2 films depending on substrate temperature were studied in detail. A single-crystal anatase TiO2 (a-TiO2) film was obtained at the substrate temperature of 550 °C. The epitaxial relationship between the a-TiO2 film and MgAl6O10 (100) substrate was a-TiO2 (001) || MgAl6O10 (100) with a-TiO2 [100] || MgAl6O10 [001]. The a-TiO2 film showed an average transmittance of 95.1% in the visible range, and an optical band gap of 3.46 eV. The refractive indexes and extinction coefficients of the obtained TiO2 films as a function of wavelength were analyzed. A broad photoluminescence peak centered at 535 nm was observed at room temperature and the corresponding luminescence mechanisms were discussed.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · ZnO doping and properties
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References (45)
Show source-provided references
1. Wavelength tunable InGaN/GaN nano-ring LEDs via nano-sphere lithography
2. Characteristics of GaN-based light emitting diodes with different thicknesses of buffer layer grown by HVPE and MOCVD10.1088/1361-6463/50/7/075101 ↗
3. The influence of hafnium doping on density of states in zinc oxide thin-film transistors deposited via atomic layer deposition10.1186/s11671-017-1852-z ↗
4. Electrical and optical characteristics of aerosol assisted CVD grown ZnO based thin film diode and transistor10.1016/j.jallcom.2016.11.267 ↗
5. Far-UV annealed inkjet-printed In2O3 semiconductor layers for thin-film transistors on a flexible polyethylene naphthalate substrate10.1021/acsami.6b14654 ↗
6. Enhancement of perovskite solar cells efficiency using N-doped TiO2 nanorod arrays as electron transfer layer10.1186/s11671-016-1811-0 ↗
7. Determination of optical properties in nanostructured TiO2 thin film fabricated by electron beam physical vapor deposition10.1364/JOT.83.000026 ↗
8. Effective incorporation of TiO2 nanoparticles into polyamide thin-film composite membranes10.1002/app.43383 ↗
9. TiO2 mesocrystals with exposed {001} facets as efficient photocatalysts10.1016/j.jallcom.2016.04.121 ↗
10. Synthesis and photocatalytic activity of mesoporous – (001) facets TiO2 single crystals10.1016/j.apsusc.2017.01.210 ↗
11. Enhanced photocatalytic properties of hierarchical three-dimensional TiO2 grown on femtosecond laser structured titanium substrate10.1016/j.apsusc.2017.01.203 ↗
12. Charge transport and recombination in TiO2 brookite-based photoelectrodes10.1021/jp5047479 ↗
13. Vertically aligned nanorod-like rutile TiO2 single crystal nanowire bundles with superior electron transport and photoelectrocatalytic properties10.1039/C2JM15546J ↗
14. A new observation on the phase transformation of TiO2 nanoparticles produced by a CVD method10.1080/027868290906986 ↗
15. Rutile-type TiO2 thin film for high-k gate insulator10.1016/S0040-6090(02)01105-7 ↗
16. Rutile and anatase mixed crystal TiO2 thin films prepared by pulsed laser deposition10.1016/j.tsf.2006.07.032 ↗
17. Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis10.1016/j.ceramint.2015.10.095 ↗
18. Facile synthesis of Ni-doped TiO2 ultrathin nanobelt arrays with enhanced photocatalytic performance10.1039/C6CE00015K ↗
19. A facile solution approach to W,N co-doped TiO2 nanobelt thin films with high photocatalytic activity10.1039/C5TA03918E ↗
20. MOCVDgrowth and structure of Nb- and V-doped TiO2 flms on sapphire10.1016/S0022-0248(00)00010-5 ↗
21. Sputtered Nb- and Ta-doped TiO2 transparent conducting oxide films on glass10.1557/JMR.2007.0353 ↗
22. Electronic properties of TiO2 doped with Sc, Y La, Zr, Hf, V, Nb and Ta10.1016/j.cplett.2015.03.056 ↗
23. The influence of anatase titanium dioxide film (0 0 1) preferred orientation on N implantation process10.1016/j.matlet.2017.03.149 ↗
24. Effect of sputtering power on optical properties of prepared TiO2 thin films by thermal oxidation of sputtered Ti layers10.1016/j.mssp.2017.02.007 ↗
25. Growth, structure, and morphology of TiO2 films deposited by molecular beam epitaxy in pure ozone ambients10.1016/j.mejo.2006.05.010 ↗
26. Epitaxial growth of TiO2 thin films on SrTiO3, LaAlO3 and yttria-stabilized zirconia substrates by electron beam evaporation10.1016/j.tsf.2006.10.106 ↗
27. Structural characterization of TiO2 films grown on LaAlO3 and SrTiO3 substrates using reactive molecular beam epitaxy10.1016/j.jcrysgro.2007.10.084 ↗
28. MOCVD growth and structure of Nb- and V-doped TiO2 films on sapphire10.1016/S0022-0248(00)00010-5 ↗
29. Preparation of epitaxial TiO2 films by PLD for photocatalyst applications10.1016/S0022-0248(01)01959-5 ↗
30. Growth and characterization of well-aligned densely-packed rutile TiO2 nanocrystals on sapphire (100) and (012) substrates by reactive magnetron sputtering10.1016/j.tsf.2009.11.014 ↗
31. Synthesis of monoclinic structure gallium oxide epitaxial film on MgAl6O10 (100)10.1016/j.matlet.2013.05.101 ↗
32. Comparative study of TiO2 anatase epitaxial thin films grown by magnetron sputtering and metalorganic chemical vapor deposition10.1143/JJAP.42.7025 ↗
33. Synthesis of TiO2 thin films using single molecular precursors by MOCVD method for dye-sensitized solar cells application and study on film growth mechanism10.1016/j.materresbull.2012.04.039 ↗
34. Characterization of epitaxial TiO2 films prepared by pulsed laser deposition10.1016/S0022-0248(01)01986-8 ↗
35. Epitaxial growth of anatase TiO2 thin films on LaAlO3(100) prepared using pulsed laser deposition10.1016/j.tsf.2005.12.291 ↗
36. Growth of epitaxial anatase (001) and (101) films10.1016/S0040-6090(01)01476-6 ↗
37. The effects of Fe, Co and Ni dopants on TiO2 structure of sol-gel nanopowders used as photocatalysts for environmental protection: a comparative study10.1016/j.ceramint.2015.10.097 ↗
38. Influence of cobalt doping on the structural, optical and luminescence properties of sol-gel derived TiO2 nanoparticles10.1080/14786435.2016.1243265 ↗
39. Synthesis, characterization and dye adsorption studies of porous brookite and mixed brookite with rutile TiO2 using PEG assisted sol-gel synthesis process10.1016/j.materresbull.2017.03.036 ↗
40. Formation of TiO2 nanoparticles by reactive-layer-assisted deposition and characterization by XPS and STM10.1021/nl0505703 ↗
41. Effects of thermally induced anatase-to-rutile phase transition in MOCVD-grown TiO2 films on structural and optical properties10.1007/s003390100804 ↗
42. TiO2-based transparent conducting oxides; the search for optimum electrical conductivity using a combinatorial approach10.1039/c3tc31472c ↗
43. Pure single crystallographic form of TiO2 nanoparticles: preparation and characterization10.1063/1.4917766 ↗
44. The stability, electronic structure, and optical property of TiO2 polymorphs10.1021/jp412462m ↗
45. Anatase-selective photoluminescence spectroscopy of P25 TiO2 nanoparticles: different effects of oxygen adsorption on the band Bending of anatase10.1021/acs.jpcc.6b11714 ↗