Light-emitting diodes fabricated from biomolecular compounds

H. Tajima, K. Shimatani, T. Komino, S. Ikeda, M. Matsuda, Y. Ando, H. Akiyama

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


We fabricated ITO/biomolecule/Al junctions using chrolophyll a, cytochrome c, myoglobin, hemin, Vitamin B12. All the junctions worked as organic light-emitting diode (OLED). The quantum efficiencies of the fabricated OLED were of the order of 1 × 10-7 around V = 10 V, and did not seriously depend on whether or not a compound exhibits photoluminescence. Based on the energy diagram of the ITO/cytochrome c/Al junction, we discuss the difference of the EL spectrum from the photoluminescence or absorption spectrum.

Original languageEnglish
Pages (from-to)61-65
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Publication statusPublished - Aug 15 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry


Dive into the research topics of 'Light-emitting diodes fabricated from biomolecular compounds'. Together they form a unique fingerprint.

Cite this