Electronic properties of nitrogen-and boron-doped amorphous carbon (A-c:N and a-c:B) films from palmyra sugar

Anna Zakiyatul Laila*, Khoirotun Nadiyyah, Irma Septi Ardiani, Budhi Priyanto, Darminto

*Corresponding author for this work

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

3 Citations (Scopus)


Amorphous carbon (a-C) film is a unique material that attracts the attention of scientists to be investigated. Nitrogen-and boron-doped amorphous carbon (a-C:N and a-C:B) have been deposited on ITO glass substrates by using nanospray method. Palmyra sugar is heated at temperature 250o C for 2.5 hours to obtain a-C. Boric acid (H3BO3) and amonium hidroxide (NH4OH) are used as the sources of boron doping and nitrogen doping. a-C:N and a-C:B are made by the variations of mole ratio for doping and amorphous carbon, that are 1:15 and 1:20. Then, these samples are dissolved into mixed dymethyl sulfoxide (DMSO) and aquades. The exfoliation process of samples has been done by applying ultrasonic cleaner for 2 hours and also centrifugated at 4000 rpm for 45 minutes. Electrical conductivity and band gap are measured by using four point probe and UV Vis. The results show that electrical conductivity increases but band gap decreases than pure a-C. Furthermore, the larger mole ratio of a:C-N and a-C:B also increases conductivity and decreases band gap, resulting between 5.5×10-1 S/cm – 6.1×10-1 S/cm and 1.43 eV – 1.71 eV.

Original languageEnglish
Title of host publicationPhysics Symposium
Subtitle of host publicationKey Research in Materials Science
EditorsAyi Bahtiar, Togar Saragi, Sahrul Hidayat, Lusi Safriani
PublisherTrans Tech Publications Ltd
Number of pages5
ISBN (Print)9783035716979
Publication statusPublished - 2020
Event4th Padjadjaran International Physics Symposium, PIPS 2019 - Bandung, Indonesia
Duration: 13 Nov 201914 Nov 2019

Publication series

NameKey Engineering Materials
Volume860 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Conference4th Padjadjaran International Physics Symposium, PIPS 2019


  • Amorphous carbon
  • Band gap
  • Conductivity


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