Carrier dynamics in ZnO nanorods revealed by pump-probe and the time-resolved photoluminescence

Author

Chang, Dong-Wook ; Kim, Ji-Hee ; Han, Kang-Jeon ; Yee, K.J. ; Kwon, Byoung-Hwa ; Yi, Gyu-Chul

Author_Institution

Dept. of Phys., Chungnam Nat. Univ., Daejeon

fYear

2007

fDate

26-31 Aug. 2007

Firstpage

1

Lastpage

2

Abstract

Using a mode-locked Ti:sapphire laser, we have performed time-resolved pump-probe and PL measurements for ZnO nanorods of which the size were determined to be 30-40 nm in diameter and about 1 mum in length by filed-emission scanning electron microscopy (FESEM). The excited carrier dynamics was analyzed from the complementary time-resolved processes in pump-probe and PL.

Keywords

II-VI semiconductors; carrier relaxation time; nanostructured materials; photoluminescence; scanning electron microscopy; time resolved spectra; zinc compounds; ZnO; ZnO nanorod; carrier dynamics; complementary time-resolved process; filed-emission scanning electron microscopy; mode-locked Ti:sapphire laser; size 30 nm to 40 nm; time-resolved photoluminescence; time-resolved pump-probe measurement; Laser excitation; Laser mode locking; Light emitting diodes; Photoluminescence; Photonic band gap; Pump lasers; Scanning electron microscopy; Semiconductor nanostructures; Temperature; Zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on

Conference_Location

Seoul

Print_ISBN

978-1-4244-1173-3

Electronic_ISBN

978-1-4244-1174-0

Type

conf

DOI

10.1109/CLEOPR.2007.4391779

Filename

4391779