TY - JOUR
T1 - Light emission due to dislocations in wurtzite ZnO bulk single crystals freshly introduced by plastic deformation
AU - Ohno, Y.
AU - Koizumi, H.
AU - Taishi, T.
AU - Yonenaga, I.
AU - Fujii, K.
AU - Goto, H.
AU - Yao, T.
N1 - Funding Information:
This work was partially supported by the Ministry of Education, Culture, Sports, Science, and Technology, Japan, a Grant-in-Aid for Scientific Research (B), No. 19310072 (2007–2009).
PY - 2008
Y1 - 2008
N2 - An arbitrary number of dislocations were freshly introduced in wurtzite ZnO bulk single crystals by plastic deformation at high temperatures (923-1123 K), and the optical properties were examined by photoluminescence spectroscopy. ZnO, including a high density (more than 109 cm-2) of dislocations, showed excitonic light emission with photon energies of 3.100 and 3.345 eV, as well as their LO-phonon replicas, at a temperature of 11 K, and the intensities increased with increasing dislocation density.
AB - An arbitrary number of dislocations were freshly introduced in wurtzite ZnO bulk single crystals by plastic deformation at high temperatures (923-1123 K), and the optical properties were examined by photoluminescence spectroscopy. ZnO, including a high density (more than 109 cm-2) of dislocations, showed excitonic light emission with photon energies of 3.100 and 3.345 eV, as well as their LO-phonon replicas, at a temperature of 11 K, and the intensities increased with increasing dislocation density.
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U2 - 10.1063/1.2831001
DO - 10.1063/1.2831001
M3 - Article
AN - SCOPUS:38049074734
SN - 0003-6951
VL - 92
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 1
M1 - 011922
ER -