Semi-conductive carbon from industrial tea waste biomass for a p-n junction

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AKGÜL G., TOMAKİN M., ERKAYA H. H.

Biomass Conversion and Biorefinery, vol.15, no.4, pp.5327-5337, 2025 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 4
  • Publication Date: 2025
  • Doi Number: 10.1007/s13399-024-05413-8
  • Journal Name: Biomass Conversion and Biorefinery
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Page Numbers: pp.5327-5337
  • Keywords: Biomass, p-n junction, Semiconductive carbonaceous materials, Tea waste
  • Open Archive Collection: AVESIS Open Access Collection
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

Some semiconducting carbonaceous material was developed from industrial tea waste biomass by catalytic pyrolysis and heteroatom doping; then, a p-n junction was realized on an n-type Si substrate. I-V characteristics of the structures revealed that each structure had a different reverse saturation current, ideality factor, cut-in voltage and series resistance. The variations in the characteristics are attributed to the amorphous and non-uniform nature of the carbonaceous material. Due to the high resistivity of the carbonaceous material, a significant amount of series resistance was present in the characteristics, resulting in very small levels of current that would inhibit the practical use of the structure as a semiconductor diode in electronic circuits.