Title :
New image transducer using organic electroluminescent diode combined with photoresponsive amorphous silicon carbide
Author :
Hiramoto, Masahiro ; Yokoyama, Masaaki
Author_Institution :
Chem. Process Eng., Osaka Univ., Japan
Abstract :
A novel type of image transducer consisting of an organic electroluminescent (EL) diode on a photoconductive amorphous silicon carbide (a-SiC:H) film has been successfully designed. It performs efficient light up-conversion from red to green with quantum conversion of 1% with the assistance of the photocurrent multiplication in a-SiC:H film. The EL output under red light irradiation can be modulated by superimposing ultraviolet light. By using the photoconductive semiconductor having a much smaller band gap, infrared-to-visible light conversion will be possible.<>
Keywords :
amorphous semiconductors; hydrogen; image convertors; luminescent devices; optical films; optical modulation; photoconducting devices; photoconducting materials; silicon compounds; transducers; SiC:H; image transducer; infrared-to-visible light conversion; light up-conversion; optical modulation; organic electroluminescent diode; photoconductive semiconductor; photocurrent multiplication; photoresponsive film; quantum conversion; red light irradiation; ultraviolet light; Amorphous silicon; Electroluminescence; Image converters; Optical modulation; Photoconducting devices; Photoconductivity; Photonic band gap; Semiconductor diodes; Semiconductor films; Transducers;
Conference_Titel :
Display Research Conference, 1991., Conference Record of the 1991 International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-0213-3
DOI :
10.1109/DISPL.1991.167449
