VNU Journal of Science Mathematics – Physics, Vol 37, No 1 (2021) 31 37 31 Original Article Application of Pump Probe Technique for Tracking of Charge Carrier Relaxation In Nanostructured Semiconductors Ngo Ngoc Ha* International Training Institute for Materials Science, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Vietnam Received 22 April 2020 Accepted 23 May 2020 Abstract The pump probe technique is a powerful tool for probing and characterizing the electronic and struc[.]