Contactless photo-conductivity measurements using time-resolved microwave conductivity

Raheel M. Hashmi, Supriya Pillai

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

Microwave probing can be used to study the charge carrier dynamics in photo-conductive materials. Such studies are of paramount importance considering the significant efforts dedicated towards photo-voltaic energy generation now-a-days. Contactless methods to quantify the generation of charge carriers in film-based materials, under the influence of light of varying intensity, are much needed to enable screening of such materials to identify the most promising candidates [1]. We describe the use of time-resolved microwave conductivity (TRMC), which is an effective and contactless technique, to study the dynamics of charge carrier generation and recombination in thin film-based conductive media. In this work, we present numerical simulations carried out in CST Microwave Studio, and a practical microwave probe setup, to extend the TRMC technique for enabling new measurement capabilities. Such microwave-based probe setup can be used in-line with bulk-fabrication processes for evaluating quality of thin-film organic photo voltaic materials in real time.

Original languageEnglish
Title of host publicationProceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)
Subtitle of host publicationICEAA '19 21st edition
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1407
Number of pages1
ISBN (Electronic)9781728105635, 9781728105628
ISBN (Print)9781728105642
DOIs
Publication statusPublished - 2019
Event21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 - Granada, Spain
Duration: 9 Sep 201913 Sep 2019

Conference

Conference21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
CountrySpain
CityGranada
Period9/09/1913/09/19

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