What Limits Mobility in Hydrogenated Indium Oxide?

Sebastian Husein, Michael Stuckelberger, Bradley West, Laura Ding, Monica Morales-Masis, Fabien Dauzou, Martial Duchamp, Zachary Holman, Mariana Bertoni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Understanding the electron scattering mechanisms dominating transport in high and low mobility transparent conducting oxides can provide insight into improving the properties of this crucial photovoltaic device layer. Contributions from ionized impurity scattering, phonon scattering, and grain boundary scattering were measured and quantified in hydrogenated indium oxide thin films, which had varying composition and grain size, resulting in a wide range of carrier densities (∼ 101Scm-3-∼ 1020cm-3) and carrier mobilities (∼ 10 cm2/Vs - > 100 cm2Vs). We used temperature-dependent Hall measurements from 5-300 Kelvin to characterize electrical properties of the sputtered films. Grain boundary scattering dominated films with the lowest mobility, whereas films with > 100 cm2/Vs mobilities were dominated by contributions from ionized impurity scattering and polar optical phonon scattering.

Original languageEnglish (US)
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1810-1813
Number of pages4
ISBN (Electronic)9781538685297
DOIs
StatePublished - Nov 26 2018
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: Jun 10 2018Jun 15 2018

Other

Other7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
CountryUnited States
CityWaikoloa Village
Period6/10/186/15/18

Keywords

  • carrier transport
  • temperature-dependent Hall
  • thin film
  • transparent conducting oxide

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Husein, S., Stuckelberger, M., West, B., Ding, L., Morales-Masis, M., Dauzou, F., Duchamp, M., Holman, Z., & Bertoni, M. (2018). What Limits Mobility in Hydrogenated Indium Oxide? In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 1810-1813). [8547394] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8547394