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Engineering of Multifunctional Nanomaterials for Applications in Luminescent Electrical Contacts, Transport Systems, Solar Cells, and Organic Gas Sensors

2021-2024

The primary objective of this project is to manipulate the properties of In2O3-SnO2 and ZnO:Al thin films doped with Tm, Tb, Cr, and Fe to evaluate the dopant-induced effects on luminescence, electrical conductivity, optical transparency, and magnetic properties. Furthermore, their performance as acetone sensors under UV illumination and low operating temperatures will be assessed. To achieve this, films are deposited using a triple-magnetron sputtering system, enabling precise engineering through the control of dopant concentrations, substrate temperature, and post-deposition thermal activation treatments.
Optical properties and surface roughness will be evaluated using the only variable angle spectroscopic ellipsometer in Peru, allowing for in situ sample measurements ranging from ambient temperature to 400°C. Light emission properties will be characterized via cathodoluminescence and photoluminescence echniques. Electrical properties will be analyzed using Hall Effect and Van der Pauw measurements, while
magnetic properties will be assessed through Vibrating Sample Magnetometry (VSM). Sensor erformance under UV excitation will be tested across varying acetone concentrations and operating emperatures. By the project’s conclusion, we expect to have developed a multifunctional material possessing the aforementioned capabilities.

 

Participants:

 

 

 

 

Fecha de inicio: 20/06/2021
Fecha final: 19/06/2024
Estado DGI: Cerrado
Instituciones Investigadoras:
UNSA, USP, HZB y GEMac
Instituciones Financiadoras:
Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica