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Blue‐to‐red electroluminescence from organic light‐emitting field‐effect transistor using various organic semiconductor materials
Author(s) -
Oyamada Takahito,
Uchiuzou Hiroyuki,
Sasabe Hiroyuki,
Adachi Chihaya
Publication year - 2005
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2121072
Subject(s) - citation , electroluminescence , field (mathematics) , computer science , physics , engineering physics , library science , art history , nanotechnology , art , materials science , mathematics , layer (electronics) , pure mathematics
— We succeeded in observing visible bright electroluminescence from blue to red in an organic field‐effect‐transistor structure. In particular, tetraphenylpyrene (TPPy) demonstrated a high photoluminescence efficiency of φ PL ∼ 70% and a maximum electroluminescence efficiency of η EL ∼ 10 −2 %. The electroluminescence efficiency (η EL ) was enhanced by using a short source‐to‐drain channel length (L SD < 1 μm). In addition, doping the TPPy layer with highly fluorescent rubrene molecules led to an # PL of ∼100% and a maximum η EL of 0.8%.