Temperature-dependent electrical transport, Hall effect, and Seebeck properties of bulk chemically reduced graphene oxide with bipolar charge carrier materials

Keerati Maneesai; Kanyapak Silakaew; Sunisar Khammahong; Chaiwat Phrompet; Chaval Sriwong; Chanchana Thanachayanont; Chesta Ruttanapun

doi:10.1063/5.0142476

journal article·2023-03-01Open access

Temperature-dependent electrical transport, Hall effect, and Seebeck properties of bulk chemically reduced graphene oxide with bipolar charge carrier materials

Keerati Maneesai, Kanyapak Silakaew, Sunisar Khammahong, Chaiwat Phrompet, Chaval Sriwong, Chanchana Thanachayanont, Chesta Ruttanapun

AIP Advances· Volume 13· Issue 3

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Source abstract

Abstract

The temperature-dependent electrical transport, Hall effect, and Seebeck properties of bulk-reduced graphene oxide (rGO) prepared by a chemical reduction process were investigated in a temperature range of 310–475 K. The bulk rGO contained bipolar charge carriers with p-type to n-type switching at a temperature of 420 K. The materials illustrated a p-type characteristic in the temperature range of 310–420 K and n-type characteristic in the temperature range of 420–475 K. The charge transport mechanism was that of the graphene-derived 2D material in the p-type regime and governed by polaronic charge carriers.

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Research context

Nanomaterials

OpenAlex topics: Graphene research and applications · Advancements in Battery Materials · Quantum and electron transport phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, School of Science, King Mongkut’s Institute of Technology Ladkrabang 1 , Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Smart Materials Research and Innovation Unit, School of Science, King Mongkut’s Institute of Technology Ladkrabang 2 , Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Center of Excellence in Smart Materials Research and Innovation, King Mongkut’s Institute of Technology Ladkrabang 3 , Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Thailand Center of Excellence in Physics, Ministry of Higher Education, Science, Research and Innovation 4 , 328 Si Ayutthaya Road, Bangkok 10400, Thailand

College of Innovation and Industrial Management, King Mongkut’s Institute of Technology Ladkrabang 5 , Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

Department of Chemistry, School of Science, King Mongkut’s Institute of Technology Ladkrabang 6 , Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand

National Metal and Materials Technology Center 7 , 114 Thailand Science Park, Paholyothin Rd., Klong 1, Klong Luang 12120, Thailand

Funding

King Mongkut’s Institute of Technology Ladkrabang · National Research Council of Thailand

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