Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction

Tetsuya Shimogaki, Yuki Ishida, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We have investigated the laser nano soldering between ZnO nanowires and the p-type GaN thin film for the realization of the hetero p-n junction with low thermal loading. When the ZnO nanowires were irradiated with 355 nm laser beam at a fluence of 0.25 J/cm2, only a tip of the nanowires was melted due to the field enhancement effect near the tip of the nanowires, and a small bead with a diameter of 40 nm was formed at the tip of each nanowires. This phenomenon was applied to solder the junction between the ZnO nanowires and a p-type GaN thin film, by irradiating the junction through the GaN film with 375 nm laser beam which is transparent for the p-type GaN thin film but opaque for the ZnO nano-wires. As a result, the improvements of the I-V characteristics of the junction and the increment of the UV electro-luminescence were clearly observed, demonstrating the effectiveness of the nano soldering in fabrication of the hetero p-n junction between the ZnO nanowires and the GaN thin film.

Original languageEnglish
Title of host publicationZnO Nanocrystals and Allied Materials
EditorsM.S. Ramachandra Rao, Tatsuo Okada
Pages39-47
Number of pages9
DOIs
Publication statusPublished - Jan 1 2014

Publication series

NameSpringer Series in Materials Science
Volume180
ISSN (Print)0933-033X

Fingerprint

Soldering
Nanowires
Fabrication
Thin films
Lasers
Laser beams
Electroluminescence
Soldering alloys
Wire

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Shimogaki, T., Ishida, Y., Okazaki, K., Higashihata, M., Nakamura, D., & Okada, T. (2014). Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction. In M. S. Ramachandra Rao, & T. Okada (Eds.), ZnO Nanocrystals and Allied Materials (pp. 39-47). (Springer Series in Materials Science; Vol. 180). https://doi.org/10.1007/978-81-322-1160-0_2

Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction. / Shimogaki, Tetsuya; Ishida, Yuki; Okazaki, Kota; Higashihata, Mitsuhiro; Nakamura, Daisuke; Okada, Tatsuo.

ZnO Nanocrystals and Allied Materials. ed. / M.S. Ramachandra Rao; Tatsuo Okada. 2014. p. 39-47 (Springer Series in Materials Science; Vol. 180).

Research output: Chapter in Book/Report/Conference proceedingChapter

Shimogaki, T, Ishida, Y, Okazaki, K, Higashihata, M, Nakamura, D & Okada, T 2014, Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction. in MS Ramachandra Rao & T Okada (eds), ZnO Nanocrystals and Allied Materials. Springer Series in Materials Science, vol. 180, pp. 39-47. https://doi.org/10.1007/978-81-322-1160-0_2
Shimogaki T, Ishida Y, Okazaki K, Higashihata M, Nakamura D, Okada T. Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction. In Ramachandra Rao MS, Okada T, editors, ZnO Nanocrystals and Allied Materials. 2014. p. 39-47. (Springer Series in Materials Science). https://doi.org/10.1007/978-81-322-1160-0_2
Shimogaki, Tetsuya ; Ishida, Yuki ; Okazaki, Kota ; Higashihata, Mitsuhiro ; Nakamura, Daisuke ; Okada, Tatsuo. / Laser nano-soldering of ZnO nanowires and GaN thin film for fabrication of Hetero p-n junction. ZnO Nanocrystals and Allied Materials. editor / M.S. Ramachandra Rao ; Tatsuo Okada. 2014. pp. 39-47 (Springer Series in Materials Science).
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