Title :
Bio electroluminescent device composed of cytochrome c/chlorophyll a hetero-structure
Author :
Kim, Hun-Soo ; Lee, Chang-Ho ; Lee, Doo-Bong ; Oh, Se-Young ; Choi, Jeong-Woo
Author_Institution :
Dept. of Chem. & Biomolecular Eng., Sogang Univ., Seoul
Abstract :
In this work, light emitting device was fabricated by the application of photo-excited characteristics in chlorophyll a. Electroluminescence (EL) properties was investigated for the thickness of 15 layers and 25 layers chlorophyll a. Especially, single-layered bio EL device composing of the 15 layers of chlorophyll a LB ldquodm turned on at 5 V. We also fabricated bi-layered bio EL device composed of ITO/viologen/chlorophyll a/AI. This novel blue light-emitting device using viologen as hole transporting layer exhibited the narrow blue emission peak around 455 nm. Especially, this device showed the high external quantum efficiency of 1.0x10-3 % in range of 17 V and the low turn-on voltage of 5 V. Finally, it was shown that the bio display was possible through the further study.
Keywords :
bioelectric phenomena; electroluminescent devices; light emitting devices; bioelectroluminescent device; cytochrome c/chlorophyll; electroluminescence properties; light emitting device; photo-excited characteristics; Assembly; Biological materials; Biotechnology; Chemical engineering; Displays; Electroluminescence; Electroluminescent devices; Indium tin oxide; Light emitting diodes; Low voltage; LB film; chlorophill a; electroluminescence; viologene;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0540-4
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388762
