Time-resolved photoluminescence of the size-controlled ZnO nanorods

Sangsu Hong, W.; Taiha Joo, W.; Won II Park, W.; Yong Ho Jun, W.; Gyu-Chul Yi
November 2003
Applied Physics Letters;11/17/2003, Vol. 83 Issue 20, p4157
Academic Journal
Size dependence of the time-resolved photoluminescence (TRPL) has been investigated for the ZnO nanorods fabricated by catalyst-free metalorganic chemical vapor deposition. The nanorods have a diameter of 35 nm and lengths in the range of 150 nm to 1.1 μm. The TRPL decay rate decreases monotonically as the length of the nanorods increases in the range of 150 to 600 nm. Decrease of the radiative decay rate of the exciton-polariton has been invoked to account for the results. © 2003 American Institute of Physics.


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