| 書目名稱 | Device Architecture and Materials for Organic Light-Emitting Devices | | 副標(biāo)題 | Targeting High Curre | | 編輯 | Sarah Schols | | 視頻video | http://file.papertrans.cn/271/270328/270328.mp4 | | 概述 | A concise introduction gives an overview of the state-of-the-art organic light-emitting devices and highlights the challenges that have to be overcome to achieve electrically pumped lasing.New device | | 圖書封面 |  | | 描述 | .Device Architecture and Materials for Organic Light-Emitting Devices .focuses on the design of new device and material concepts for organic light-emitting devices, thereby targeting high current densities and an improved control of the triplet concentration. A new light-emitting device architecture, the OLED with field-effect electron transport, is demonstrated. This device is a hybrid between a diode and a field-effect transistor. Compared to conventional OLEDs, the metallic cathode is displaced by one to several micrometers from the light-emitting zone, reducing optical absorption losses. The electrons injected by the cathode accumulate at an organic heterojunction and are transported to the light-emission zone by field-effect. High mobilities for charge carriers are achieved in this way, enabling a high current density and a reduced number of charge carriers in the device. Pulsed excitation experiments show that pulses down to 1 μs can be applied to this structure without affecting the light intensity, suggesting that pulsed excitation might be useful to reduce the accumulation of triplets in the device. The combination of all these properties makes the OLED with field-effect e | | 出版日期 | Book 2011 | | 關(guān)鍵詞 | device architecture; field-effect transport; light-emitting diodes; optical devices; organic materials; t | | 版次 | 1 | | doi | https://doi.org/10.1007/978-94-007-1608-7 | | isbn_softcover | 978-94-007-9403-0 | | isbn_ebook | 978-94-007-1608-7 | | copyright | Springer Science+Business Media B.V. 2011 |
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