TY - JOUR
T1 - High current density in light-emitting transistors of organic single crystals
AU - Takenobu, Taishi
AU - Bisri, Satria Zulkarnaen
AU - Takahashi, Tetsuo
AU - Yahiro, Masayuki
AU - Adachi, Chihaya
AU - Iwasa, Yoshihiro
PY - 2008/2/13
Y1 - 2008/2/13
N2 - We measured the external electroluminescence quantum efficiency (ηext) in light-emitting field-effect transistors (LETs) made of organic single crystals and found that, in the ambipolar transport region, ηext is not degraded up to several hundreds A/cm2 current-density range, which is 2 orders of magnitude larger than that achieved in conventional organic light-emitting diodes. The present result indicates the single-crystal organic LET is a promising device structure that is free from various kinds of nonradiative losses such as exciton dissociation near electrodes and exciton annihilations.
AB - We measured the external electroluminescence quantum efficiency (ηext) in light-emitting field-effect transistors (LETs) made of organic single crystals and found that, in the ambipolar transport region, ηext is not degraded up to several hundreds A/cm2 current-density range, which is 2 orders of magnitude larger than that achieved in conventional organic light-emitting diodes. The present result indicates the single-crystal organic LET is a promising device structure that is free from various kinds of nonradiative losses such as exciton dissociation near electrodes and exciton annihilations.
UR - http://www.scopus.com/inward/record.url?scp=40849116827&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=40849116827&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.100.066601
DO - 10.1103/PhysRevLett.100.066601
M3 - Article
AN - SCOPUS:40849116827
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 6
M1 - 066601
ER -