Blue‐to‐red electroluminescence from organic light‐emitting field‐effect transistor using various organic semiconductor materials
Blue‐to‐red electroluminescence from organic light‐emitting field‐effect transistor using various organic semiconductor materials
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DOI：
10.1889/1.2121072
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发表时间：
2005-10
影响因子：
2.3
通讯作者：
Takahito Oyamada;Hiroyuki Uchiuzou;H. Sasabe;C. Adachi
中科院分区：
文献类型：
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作者：
Takahito Oyamada;Hiroyuki Uchiuzou;H. Sasabe;C. Adachi
摘要：我们成功地在有机场效应晶体管结构中观察到从蓝色到红色的可见明亮电致发光。特别是，四苯基芘（TPPy）表现出 φPL ~ 70% 的高光致发光效率和 ηEL ~ 10−2% 的最大电致发光效率。通过使用短的源极到漏极沟道长度（LSD < 1 μm）可以提高电致发光效率（ηEL）。此外，用高荧光红荧烯分子掺杂 TPPy 层导致 #PL 为 ∼100%，最大 ηEL 为 0.8%。
Abstract— 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 φPL ∼ 70% and a maximum electroluminescence efficiency of ηEL ∼ 10−2%. The electroluminescence efficiency (ηEL) was enhanced by using a short source‐to‐drain channel length (LSD < 1 μm). In addition, doping the TPPy layer with highly fluorescent rubrene molecules led to an #PL of ∼100% and a maximum ηEL of 0.8%.