Playing with dimensions: Rational design for heteroepitaxial p-n junctions

Tae Il Lee, Sang Hoon Lee, Young Dong Kim, Woo Soon Jang, Jin Young Oh, Hong Koo Baik, Catherine Stampfl, Aloysius Soon, Jae Min Myoung

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A design for a heteroepitaxial junction by the way of one-dimensional wurzite on a two-dimensional spinel structure in a low-temperature solution process was introduced, and it's capability was confirmed by successful fabrication of a diode consisting of p-type cobalt oxide (Co 3 O 4 ) nanoplate/n-type zinc oxide (ZnO) nanorods, showing reasonable electrical performance. During thermal decomposition, the 30° rotated lattice orientation of Co 3 O 4 nanoplates from the orientation of β-Co(OH) 2 nanoplates was directly observed using high-resolution transmission electron microscopy. The epitaxial relations and the surface stress-induced ZnO nanowire growth on Co 3 O 4 were well supported using the first-principles calculations. Over the large area, (0001) preferred oriented ZnO nanorods epitaxially grown on the (111) plane of Co 3 O 4 nanoplates were experimentally obtained. Using this epitaxial p-n junction, a diode was fabricated. The ideality factor, turn-on voltage, and rectifying ratio of the diode were measured to be 2.38, 2.5 V and 10 4 , respectively.

Original languageEnglish
Pages (from-to)68-76
Number of pages9
JournalNano letters
Volume12
Issue number1
DOIs
Publication statusPublished - 2012 Jan 11

Fingerprint

Zinc Oxide
Zinc oxide
p-n junctions
zinc oxides
Diodes
diodes
Nanorods
nanorods
cobalt oxides
High resolution transmission electron microscopy
Nanowires
spinel
thermal decomposition
Cobalt
Pyrolysis
nanowires
Fabrication
transmission electron microscopy
fabrication
Oxides

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Lee, Tae Il ; Lee, Sang Hoon ; Kim, Young Dong ; Jang, Woo Soon ; Oh, Jin Young ; Baik, Hong Koo ; Stampfl, Catherine ; Soon, Aloysius ; Myoung, Jae Min. / Playing with dimensions : Rational design for heteroepitaxial p-n junctions. In: Nano letters. 2012 ; Vol. 12, No. 1. pp. 68-76.
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Playing with dimensions : Rational design for heteroepitaxial p-n junctions. / Lee, Tae Il; Lee, Sang Hoon; Kim, Young Dong; Jang, Woo Soon; Oh, Jin Young; Baik, Hong Koo; Stampfl, Catherine; Soon, Aloysius; Myoung, Jae Min.

In: Nano letters, Vol. 12, No. 1, 11.01.2012, p. 68-76.

Research output: Contribution to journalArticle

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