Micro-photoluminescence surface mapping under surface acoustic wave modulation

• Grant number: 18/18091-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2018
• End date: July 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Odilon Divino Damasceno Couto Júnior
• Grantee: Matheus Finamor
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 12/11382-9 - Optical modulation of semiconductor nanostructures using surface acoustic waves, AP.JP

Abstract

This project aims to implement a micro-photoluminescence (micro-PL) spatial mapping system in the acoustic wave modulation lab of the Group of Optical Properties (GPO) from IFGW. The main objective is to perform space and energy-resolved micro-PL in different semiconductor nanostructures. The mapping will allow a detailed study of micro-PL in nanostructures (like 2D materials) and the effects of the surface acoustic wave (SAW) in the excitonic states of these systems (free, localized, or edge states). To implement the system the student will employ automation programs to synchronize the functioning of different equipment in the lab. The mapping system performance will be tested by scanning the emission of different nanostructures, in particular the transition metal dichalcogenides.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SCOLFARO, DIEGO; FINAMOR, MATHEUS; TRINCHAO, LUCA O.; ROSA, BARBARA L. T.; CHAVES, ANDREY; SANTOS, V, PAULO; IIKAWA, FERNANDO; COUTO, JR., ODILON D. D.. Acoustically Driven Stark Effect in Transition Metal Dichalcogenide Monolayers. ACS NANO, v. 15, n. 9, p. 15371-15380, SEP 28 2021. (19/13654-5, 12/11382-9, 18/18091-6)