Carbon nanotube coated carbon fiber based composite filaments for luminescent bulbs

Raghunandan Sharma, Kamal K. Kar*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Incandescent bulb filaments, consisting of carbon nanotube (CNT) coated carbon fiber (CNTCF), were fabricated and their incandescent properties were studied. For comparison, carbon fiber (CF) and tungsten filaments were also studied under similar conditions. CNTCF filament of 10 Ω resistance exhibits an illuminance enhanced by a factor of ~400 as compared to tungsten filament of 17 Ω resistance for an applied voltage of 18 V. At an input power of 70 W, CNTCF exhibits an enhancement by a factor of ~3.6 in the illuminance as compared to CF filament.

Original languageEnglish
JournalMaterials Letters
Volume137
Pages (from-to)150-152
Number of pages3
ISSN0167-577X
DOIs
Publication statusPublished - 15. Dec 2014

Keywords

  • Bulb filament
  • Carbon nanotubes
  • Electrical properties
  • Energy efficiency
  • Incandescence

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