Volume 20, Issue 18 2310527
Research Article

Selective Detection of Functionalized Carbon Particles based on Polymer Semiconducting and Conducting Devices as Potential Particulate Matter Sensors

Yunjia Song

Yunjia Song

Department of Materials Science and Engineering, Johns Hopkins University, 206 Maryland Hall, 3400 North Charles Street, Baltimore, MD, 21218 USA

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Nan Chen

Nan Chen

Department of Materials Science and Engineering, Johns Hopkins University, 206 Maryland Hall, 3400 North Charles Street, Baltimore, MD, 21218 USA

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Qifeng Jiang

Qifeng Jiang

Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, 21218 USA

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Tushita Mukhopadhyay

Tushita Mukhopadhyay

Department of Materials Science and Engineering, Johns Hopkins University, 206 Maryland Hall, 3400 North Charles Street, Baltimore, MD, 21218 USA

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Wudyalew Wondmagegn

Wudyalew Wondmagegn

Department of Electrical and Computer Engineering, The College of New Jersey, Ewing, NJ, 08628 USA

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Rebekka S. Klausen

Rebekka S. Klausen

Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, 21218 USA

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Howard E. Katz

Corresponding Author

Howard E. Katz

Department of Materials Science and Engineering, Johns Hopkins University, 206 Maryland Hall, 3400 North Charles Street, Baltimore, MD, 21218 USA

Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, 21218 USA

E-mail: [email protected]

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First published: 05 December 2023

Abstract

This paper reports a new mechanism for particulate matter detection and identification. Three types of carbon particles are synthesized with different functional groups to mimic the real particulates in atmospheric aerosol. After exposing polymer-based organic devices in organic field effect transistor (OFET) architectures to the particle mist, the sensitivity and selectivity of the detection of different types of particles are shown by the current changes extracted from the transfer curves. The results indicate that the sensitivity of the devices is related to the structure and functional groups of the organic semiconducting layers, as well as the morphology. The predominant response is simulated by a model that yielded values of charge carrier density increase and charge carriers delivered per unit mass of particles. The research points out that polymer semiconductor devices have the ability to selectively detect particles with multiple functional groups, which reveals a future direction for selective detection of particulate matter.

Conflict of Interest

A provisional patent application was filed based on this work.

Data Availability Statement

The data that support the findings of this study are openly available in Johns Hopkins Research Data Repository at [DOI], reference number 45.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.