Increasing the refractive index of materials via nanolamination: a-IGZO/TiO(2) nanolaminates
Caffrey, David, Norton, EmmaORCID: 0000-0002-5767-7720, Ó Coileain, Cormac, Smith, Christopher M., Shvets, Igor V.ORCID: 0000-0001-7451-5435 and Fleischer, KarstenORCID: 0000-0002-7638-4480
(2018)
Increasing the refractive index of materials via nanolamination: a-IGZO/TiO(2) nanolaminates.
Physical Review Materials, 2
(9).
pp. 1-8.
ISSN 2475-9953
We investigate nanolamination as a means of increasing the refractive index of materials, with a focus on [amorphous InGaZnO (a-IGZO)/TiO2](i) nanolaminates as composite transparent conducting oxides with a tunable index. We demonstrate that by periodic layering with TiO2 the refractive index of a-IGZO can be increased by up to Delta n approximate to 0.39 while the carrier mobility and conductivity retain 70% of their original values. This is shown to be a result of the alignment of the conduction bands of a-IGZO and TiO2. We also use optical modeling to verify the integral refractive index behavior of the nanolaminates and outline its range of applicability.
Science Foundation Ireland (SFI) under Grants No. SFI/12/RC/2278 and No. 12/IA/1264., Higher Education Authority (Ireland)under the PRTLI scheme, cycle 5, Irish Research Council under Grant No. GOI/PG/2013/445
ID Code:
23623
Deposited On:
09 Aug 2019 15:12 by
Vidatum Academic
. Last Modified 01 Mar 2023 13:36