TY - JOUR
T1 - Ultraviolet-emitting javelin-like ZnO nanorods by thermal evaporation
T2 - Growth mechanism, structural and optical properties
AU - Umar, A.
AU - Kim, S. H.
AU - Suh, E. K.
AU - Hahn, Y. B.
N1 - Funding Information:
This work was supported by the Korea Science and Engineering Foundation Grant funded by the Korean Government (MOST) (R01-2006-000-11306-0).
PY - 2007/5/25
Y1 - 2007/5/25
N2 - Ultraviolet-emitting, single-crystalline aligned javelin-like zinc oxide (ZnO) nanorods were synthesized on copper foil by thermal evaporation at low temperature of 500 °C without catalysts or additives. Detailed structural characterizations confirmed that the formed products are single-crystalline, they possess a wurtzite hexagonal phase and are grown along the c-axis direction. Raman-active optical-phonon E2 mode at 437 cm-1 with sharp and strong UV emission at 381 nm in room-temperature photoluminescence spectrum showed that the obtained ZnO nanorods have a good crystal quality with excellent optical properties. Moreover, a detailed growth mechanism was proposed for the formation of the javelin-like ZnO nanorods.
AB - Ultraviolet-emitting, single-crystalline aligned javelin-like zinc oxide (ZnO) nanorods were synthesized on copper foil by thermal evaporation at low temperature of 500 °C without catalysts or additives. Detailed structural characterizations confirmed that the formed products are single-crystalline, they possess a wurtzite hexagonal phase and are grown along the c-axis direction. Raman-active optical-phonon E2 mode at 437 cm-1 with sharp and strong UV emission at 381 nm in room-temperature photoluminescence spectrum showed that the obtained ZnO nanorods have a good crystal quality with excellent optical properties. Moreover, a detailed growth mechanism was proposed for the formation of the javelin-like ZnO nanorods.
UR - http://www.scopus.com/inward/record.url?scp=34247871521&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2007.04.006
DO - 10.1016/j.cplett.2007.04.006
M3 - Article
AN - SCOPUS:34247871521
SN - 0009-2614
VL - 440
SP - 110
EP - 115
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -