Title :
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
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;
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
DOI :
10.1109/CLEOPR.2007.4391779
