Ye Tian
Advanced Materials for the Fabrication of Innovative Micro-Supercapacitors: optimization of laser-induced graphene on polymeric substrates.
Rel. Andrea Lamberti. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2021
|
Preview |
PDF (Tesi_di_laurea)
- Tesi
Licenza: Creative Commons Attribution Non-commercial No Derivatives. Download (2MB) | Preview |
Abstract
Researchers have recently begun to study lower-cost graphene preparation methods easy to be scaled up. Among them, laser writing allows a fast photothermal conversion of some polymeric substrates (e.g., polyimide) into porous conductive path of few-layer graphene known as Laser Induced Graphene (LIG). Due to high electrical conductivity and the simple and fast fabrication procedure we focus on LIG for the fabrication of micro-supercapacitors. Supercapacitors are kind of electrochemical energy storage devices which are based on carbon nano materials. Here we report on the optimization of the laser parameter in order to produce and pattern porous graphene-like films on polyimide by absorbing the CO2 infrared laser energy and converting polyimide surface into graphene network.
Indeed, noticed several important parameters of the laser (raster, power, frequency, velocity) affect the resistance of samples measured by means of Van der Pauw method
Relatori
Anno Accademico
Tipo di pubblicazione
Numero di pagine
Corso di laurea
Classe di laurea
Aziende collaboratrici
URI
![]() |
Modifica (riservato agli operatori) |
