Polymer-assisted solution processing of Mo-doped indium oxide thin films: high-mobility and carrier-scattering mechanisms
- Title
- Polymer-assisted solution processing of Mo-doped indium oxide thin films: high-mobility and carrier-scattering mechanisms
- Author
- 조국영
- Keywords
- polymer assisted solution process; Mo-doped indium oxide; transparent conducting oxide; high carrier mobility; scattering mechanism
- Issue Date
- 2016-04
- Publisher
- IOP PUBLISHING LTD
- Citation
- JOURNAL OF PHYSICS D-APPLIED PHYSICS, v. 49, No. 15, Article no. 155501
- Abstract
- Mo-doped indium oxide (MIO) transparent conducting films have been prepared by a polymer-assisted solution (PAS) process. Both Mo-and In-PASs have been formulated by coordinating Mo-and In-anionic complexes with polyethyleneimine. The final MIO-PAS coating solution was prepared by adding Mo-PAS and In-PAS with Mo concentration in solution ranging from 0 at% to 2.5 at%. The structural, optical and electrical properties of MIO films spin-coated on the glass substrates were characterized. The optimum Mo concentration leading to the best electrical and optical properties was 1.5 at%, showing a low resistivity of 3.9 x 10(-3) Omega . cm with high mobility of 43 cm(2) V-1 s(-1) and high transmittance from visible to near infrared regions. The carrier-transport mechanism in the PAS-processed MIO film was investigated by applying a theoretical scattering model (Brook-Herring-Dingle theory) to Hall mobility data. The scattering model confirms that the ionized and neutral impurities play important roles as dominant scattering centers in the PAS-processed MIO films.
- URI
- http://iopscience.iop.org/article/10.1088/0022-3727/49/15/155501/metahttp://hdl.handle.net/20.500.11754/52558
- ISSN
- 0022-3727; 1361-6463
- DOI
- 10.1088/0022-3727/49/15/155501
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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