Junjun Jia

准教授(任期付)

  • 326 Citations
  • 12 h-Index
20072019
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Research Output 2007 2019

  • 326 Citations
  • 12 h-Index
  • 33 Article
  • 3 Conference contribution
  • 1 Paper
2019

Carrier densities of Sn-doped in 2 O 3 nanoparticles and their effect on X-ray photoelectron emission

Jia, J., Takaya, A., Yonezawa, T., Yamasaki, K., Nakazawa, H. & Shigesato, Y., 2019 Jun 28, In : Journal of Applied Physics. 125, 24, 245303.

Research output: Contribution to journalArticle

ITO (semiconductors)
photoelectrons
nanoparticles
plasmons
ellipsometry

Deposition of TiO2 photocatalyst on polyethylene terephthalate or polyimide polymer films by reactive sputtering for flexible photocatalytic sheets

Kitazawa, Y., Jia, J., Nakamura, S. I. & Shigesato, Y., 2019 Jan 1, In : Japanese journal of applied physics. 58, 5, 055503.

Research output: Contribution to journalArticle

Open Access
Reactive sputtering
polyethylene terephthalate
Photocatalysts
polyimides
Polymer films

Thermal conductivity of hetero-epitaxial ZnO thin films on c - And r -plane sapphire substrates: Thickness and grain size effect

Yamashita, Y., Honda, K., Yagi, T., Jia, J., Taketoshi, N. & Shigesato, Y., 2019 Jan 21, In : Journal of Applied Physics. 125, 3, 035101.

Research output: Contribution to journalArticle

zinc oxides
sapphire
thermal conductivity
grain size
thin films
2018
3 Citations (Scopus)

Evolution of Defect Structures and Deep Subgap States during Annealing of Amorphous In-Ga-Zn Oxide for Thin-Film Transistors

Jia, J., Suko, A., Shigesato, Y., Okajima, T., Inoue, K. & Hosomi, H., 2018 Jan 17, In : Physical Review Applied. 9, 1, 014018.

Research output: Contribution to journalArticle

oxide films
transistors
annealing
oxides
defects
1 Citation (Scopus)

How the sputtering process influence structural, optical, and electrical properties of Zn3N2 films?

Jia, J., Kamijo, H., Nakamura, S. I. & Shigesato, Y., 2018 Jun 1, In : MRS Communications. 8, 2, p. 314-321 8 p.

Research output: Contribution to journalArticle

Sputtering
Structural properties
Electric properties
Optical properties
Gases
2017
9 Citations (Scopus)

A visible-light active TiO2 photocatalyst multilayered with WO3

Jia, J., Taniyama, K., Imura, M., Kanai, T. & Shigesato, Y., 2017 Jan 1, In : Physical Chemistry Chemical Physics. 19, 26, p. 17342-17348 7 p.

Research output: Contribution to journalArticle

Photocatalysts
Nanoparticles
nanoparticles
Irradiation
irradiation
3 Citations (Scopus)

Effect of nitrogen addition on the structural, electrical, and optical properties of In-Sn-Zn oxide thin films

Jia, J., Torigoshi, Y., Suko, A., Nakamura, S. I., Kawashima, E., Utsuno, F. & Shigesato, Y., 2017 Feb 28, In : Applied Surface Science. 396, p. 897-901 5 p.

Research output: Contribution to journalArticle

Oxide films
Zinc Oxide
Structural properties
Indium
Electric properties
5 Citations (Scopus)

Structure and thermophysical properties of GaN films deposited by reactive sputtering using a metal Ga target

Isosaki, Y., Yamashita, Y., Yagi, T., Jia, J., Taketoshi, N., Nakamura, S. & Shigesato, Y., 2017 Jul 1, In : Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. 35, 4, 041507.

Research output: Contribution to journalArticle

Reactive sputtering
thermophysical properties
Thermodynamic properties
sputtering
Metals
2016
5 Citations (Scopus)

Comparative study of sputter-deposited SnO2 films doped with antimony or tantalum

Weidner, M., Jia, J., Shigesato, Y. & Klein, A., 2016 May 1, In : Physica Status Solidi (B) Basic Research. 253, 5, p. 923-928 6 p.

Research output: Contribution to journalArticle

Tantalum
Antimony
tantalum
antimony
Doping (additives)
4 Citations (Scopus)

Crystallization behavior during transparent In2O3-ZnO film growth

Jia, J., Nakamura, S. I. & Shigesato, Y., 2016 Sep 1, In : Physica Status Solidi (A) Applications and Materials Science. 213, 9, p. 2291-2295 5 p.

Research output: Contribution to journalArticle

Film growth
Crystallization
crystallization
ellipsometry
Substrates
9 Citations (Scopus)

Crystallization behavior of amorphous indium-gallium-zinc-oxide films and its effects on thin-film transistor performance

Suko, A., Jia, J., Nakamura, S. I., Kawashima, E., Utsuno, F., Yano, K. & Shigesato, Y., 2016 Mar 1, In : Japanese journal of applied physics. 55, 3, 035504.

Research output: Contribution to journalArticle

gallium oxides
Gallium
Thin film transistors
Zinc oxide
zinc oxides
3 Citations (Scopus)

Formation of homologous In2O3(ZnO)m thin films and its thermoelectric properties

Jia, J., Ow-Yang, C., Inan Akmehmet, G., Nakamura, S. I., Kato, K. & Shigesato, Y., 2016 Jul 1, In : Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. 34, 4, 041507.

Research output: Contribution to journalArticle

Thin films
annealing
film thickness
Annealing
thin films
19 Citations (Scopus)

Influence of dopant species and concentration on grain boundary scattering in degenerately doped In2O3 thin films

Frischbier, M. V., Wardenga, H. F., Weidner, M., Bierwagen, O., Jia, J., Shigesato, Y. & Klein, A., 2016 Sep 1, In : Thin Solid Films. 614, p. 62-68 7 p.

Research output: Contribution to journalArticle

Grain boundaries
grain boundaries
Doping (additives)
Scattering
Thin films
5 Citations (Scopus)

On the Crystal Structural Control of Sputtered TiO2 Thin Films

Jia, J., Yamamoto, H., Okajima, T. & Shigesato, Y., 2016 Dec 1, In : Nanoscale Research Letters. 11, 1, 324.

Research output: Contribution to journalArticle

Open Access
anatase
Titanium dioxide
rutile
Thin films
Crystals
2015
13 Citations (Scopus)

Amorphous indium-tin-zinc oxide films deposited by magnetron sputtering with various reactive gases: Spatial distribution of thin film transistor performance

Jia, J., Torigoshi, Y., Kawashima, E., Utsuno, F., Yano, K. & Shigesato, Y., 2015 Jan 12, In : Applied Physics Letters. 106, 2, 023502.

Research output: Contribution to journalArticle

zinc oxides
tin oxides
indium
oxide films
magnetron sputtering

Change in structure and TFT performances of IZO, IGO and IGZO films by crystallization

Suko, A., Jia, J., Nakamura, S. & Shigesato, Y., 2015 Jan 1, 22nd International Display Workshops, IDW 2015. International Display Workshops, p. 12-13 2 p. (Proceedings of the International Display Workshops; vol. 1).

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

Crystallization
High resolution electron microscopy
Electric properties
Air
Thin films

Change in structure and TFT performances of IZOJGO and IGZO films by crystallization

Ayaka, S., Jia, J., Shinichi, N. & Yuzo, S., 2015 Jan 1, 22nd International Display Workshops, IDW 2015. International Display Workshops, p. 524-525 2 p. (Proceedings of the International Display Workshops; vol. 1).

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

Crystallization
High resolution electron microscopy
Electric properties
Air
Thin films
20 Citations (Scopus)

Temperature dependence of thermal conductivity of VO2 thin films across metal-insulator transition

Kizuka, H., Yagi, T., Jia, J., Yamashita, Y., Nakamura, S., Taketoshi, N. & Shigesato, Y., 2015 Jan 1, In : Japanese journal of applied physics. 54, 5, e053201.

Research output: Contribution to journalArticle

Metal insulator transition
Thermal conductivity
thermal conductivity
insulators
Thin films
1 Citation (Scopus)
ITO (semiconductors)
Tin oxides
indium oxides
Nanoparticles
Indium
13 Citations (Scopus)

Visible-light active thin-film WO3 photocatalyst with controlled high-rate deposition by low-damage reactive-gas-flow sputtering

Oka, N., Murata, A., Nakamura, S. I., Jia, J., Iwabuchi, Y., Kotsubo, H. & Shigesato, Y., 2015 Oct 1, In : APL Materials. 3, 10, 104407.

Research output: Contribution to journalArticle

Open Access
Photocatalysts
Deposition rates
Sputtering
Flow of gases
Thin films
2014
16 Citations (Scopus)

Al-doped ZnO films deposited on a slightly reduced buffer layer by reactive dc unbalanced magnetron sputtering

Kusayanagi, M., Uchida, A., Oka, N., Jia, J., Nakamura, S. I. & Shigesato, Y., 2014 Mar 31, In : Thin Solid Films. 555, p. 93-99 7 p.

Research output: Contribution to journalArticle

Buffer layers
Magnetron sputtering
magnetron sputtering
buffers
Fused silica
19 Citations (Scopus)

Origin of carrier scattering in polycrystalline Al-doped ZnO films

Jia, J., Oka, N., Kusayanagi, M., Nakatomi, S. & Shigesato, Y., 2014 Oct 1, In : Applied Physics Express. 7, 10, 105802.

Research output: Contribution to journalArticle

Carrier concentration
Scattering
Doping (additives)
scattering
Grain boundaries
6 Citations (Scopus)

Study on reactive sputtering to deposit transparent conductive amorphous In2O3-ZnO films using an In-Zn alloy target

Tsukamoto, N., Sensui, S., Jia, J., Oka, N. & Shigesato, Y., 2014 May 30, In : Thin Solid Films. 559, p. 49-52 4 p.

Research output: Contribution to journalArticle

Reactive sputtering
Kinetic energy
Cathodes
Deposits
cathodes
5 Citations (Scopus)

Thermophysical properties of SnO2-based transparent conductive films: Effect of dopant species and structure compared with In2O 3-, ZnO-, and TiO2-based films

Oka, N., Yamada, S., Yagi, T., Taketoshi, N., Jia, J. & Shigesato, Y., 2014 Jan 1, In : Journal of Materials Research. 29, 15, p. 1579-1584 6 p.

Research output: Contribution to journalArticle

Open Access
Conductive films
thermophysical properties
Thermal conductivity
Thermodynamic properties
Doping (additives)
10 Citations (Scopus)

Transparent conductive Al and Ga doped ZnO films deposited using off-axis sputtering

Jia, J., Yoshimura, A., Kagoya, Y., Oka, N. & Shigesato, Y., 2014 May 30, In : Thin Solid Films. 559, p. 69-77 9 p.

Research output: Contribution to journalArticle

Sputtering
sputtering
Magnetron sputtering
magnetron sputtering
electrical resistivity
14 Citations (Scopus)

Transparent conductive Nb-doped TiO 2 films deposited by reactive dc sputtering using Ti-Nb alloy target, precisely controlled in the transition region using impedance feedback system

Oka, N., Sanno, Y., Jia, J., Nakamura, S. I. & Shigesato, Y., 2014 May 15, In : Applied Surface Science. 301, p. 551-556 6 p.

Research output: Contribution to journalArticle

Reactive sputtering
sputtering
impedance
Feedback
Crystal defects
12 Citations (Scopus)

Work function tuning of tin-doped indium oxide electrodes with solution-processed lithium fluoride

Ow-Yang, C. W., Jia, J., Aytun, T., Zamboni, M., Turak, A., Saritas, K. & Shigesato, Y., 2014 May 30, In : Thin Solid Films. 559, p. 58-63 6 p.

Research output: Contribution to journalArticle

lithium fluorides
Tin
indium oxides
Indium
tin
2013
13 Citations (Scopus)

Direct observation of the band gap shrinkage in amorphous In 2O3-ZnO thin films

Jia, J., Oka, N. & Shigesato, Y., 2013 Apr 28, In : Journal of Applied Physics. 113, 16, 163702.

Research output: Contribution to journalArticle

shrinkage
photoelectric emission
thin films
valence
shift
19 Citations (Scopus)

In situ analyses on negative ions in the indium-gallium-zinc oxide sputtering process

Jia, J., Torigoshi, Y. & Shigesato, Y., 2013 Jul 1, In : Applied Physics Letters. 103, 1, 013501.

Research output: Contribution to journalArticle

gallium oxides
zinc oxides
negative ions
indium
sputtering
4 Citations (Scopus)

Thermal boundary resistance of W/Al2O3 interface in W/Al2O3/W three-layered thin film and its dependence on morphology

Kawasaki, S., Yamashita, Y., Oka, N., Yagi, T., Jia, J., Taketoshi, N., Baba, T. & Shigesato, Y., 2013 Jun 1, In : Japanese journal of applied physics. 52, 6 PART 1, 065802.

Research output: Contribution to journalArticle

Thin films
thin films
Amorphous films
Thick films
Heat resistance
28 Citations (Scopus)

Thermal conductivity of amorphous indium-gallium-zinc oxide thin films

Yoshikawa, T., Yagi, T., Oka, N., Jia, J., Yamashita, Y., Hattori, K., Seino, Y., Taketoshi, N., Baba, T. & Shigesato, Y., 2013 Feb 1, In : Applied Physics Express. 6, 2, 021101.

Research output: Contribution to journalArticle

gallium oxides
Gallium
Zinc oxide
zinc oxides
Indium
2012

Annealing effects on Ta doped SnO2 films

Jia, J., Muto, Y., Oka, N. & Shigesato, Y., 2012 Dec 12, Nanocomposites, Nanostructures and Heterostructures of Correlated Oxide Systems. p. 245-251 7 p. (Materials Research Society Symposium Proceedings; vol. 1454).

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

Annealing
Hall mobility
annealing
Scattering
electrical resistivity
61 Citations (Scopus)

Experimental observation on the Fermi level shift in polycrystalline Al-doped ZnO films

Jia, J., Takasaki, A., Oka, N. & Shigesato, Y., 2012 Jul 1, In : Journal of Applied Physics. 112, 1, 013718.

Research output: Contribution to journalArticle

zinc oxides
oxide films
shift
aluminum
conduction bands
2011
4 Citations (Scopus)

Bimodal colloidal mixtures: From fast to slow aggregation regions

Jia, J., Jia, Z. & Iwata, S., 2011 Oct 15, In : Journal of Colloid And Interface Science. 362, 2, p. 633-637 5 p.

Research output: Contribution to journalArticle

Agglomeration
Ionic strength
Kinetics
Electrolytes
Surface chemistry
2010
2 Citations (Scopus)

Nonequilibrium structure of primary particles in colloidal bidispersion

Jia, J. & Iwata, S., 2010 Oct 1, In : Colloid and Polymer Science. 288, 14-15, p. 1485-1493 9 p.

Research output: Contribution to journalArticle

Volume fraction
Fractal dimension
Fractals
Agglomeration
fractals
2009

Temperature dependence of colloidal aggregation: Cluster-moving Monte Carlo simulation

Jia, J., Zhu, J. & Iwata, S., 2009 Jan 1.

Research output: Contribution to conferencePaper

Temperature Dependence
Aggregation
Agglomeration
Monte Carlo Simulation
Temperature
2007

Fractal characteristics of colloid deposition

Jia, J., Iwata, S., Seida, Y., Kaneta, Y., Oka, N. & Zhang, Z., 2007 Apr 7, In : Data Science Journal. 6, SUPPL.

Research output: Contribution to journalArticle

Open Access
Colloids
Fractals
Granite
Fractal dimension
Ionic strength