Karya
Judul/Title Significantly enhanced thermoelectric performance of interstitial N-doped graphene: A density functional theory study
Penulis/Author DWI NUGRAHENI R (1); ERI WIDIANTO (2); ARIF LUKMANTORO (3); Moh. Adhib Ulil Absor, S.Si., M.Sc., Ph.D. (4); Prof. Sholihun, S.Si., M.Sc., Ph.D.Sc. (5); Prof. Dr. Eng. Kuwat Triyana, M.Si. (6); Dr. Iman Santoso, S.Si., M.Sc. (7)
Tanggal/Date 28 2024
Kata Kunci/Keyword
Abstrak/Abstract The thermoelectric characteristics of interstitial nitrogen (N)-doped graphene have been studied using the first principles calculations combined with the semi-classical Boltzmann theory. We found that the Seebeck coefficient of N-doped graphene is 3 and 5.5 times higher compared to pristine graphene, along with values. At room temperature, for pristine graphene, the value stands at 0.81, whereas it rises to 0.98 and 1.00 for N-doped graphene with 6.25 % and 50 % nitrogen doping, respectively. The increase in the Seebeck coefficient of N-doped graphene is due to the increase in the effective mass band as the chemical potential rises above the conduction band minimum. We observed that N-doped graphene exhibits the highest value in the positive energy range, indicating a p-type character. Our findings suggest that N-doped graphene has promising potential for thermoelectric applications and provides insights into the underlying physics governing the thermoelectric properties of doped graphene materials.
Rumpun Ilmu Fisika
Bahasa Asli/Original Language English
Level Internasional
Status
Dokumen Karya
No Judul Tipe Dokumen Aksi
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