Developing efficient small molecule-based organic photo-couplers by optimizing the cathode interfacial layer in the photodetector
學年 111
學期 2
出版（發表）日期 2023-04-06
作品名稱 Developing efficient small molecule-based organic photo-couplers by optimizing the cathode interfacial layer in the photodetector
作品名稱（其他語言）
著者 Chen, Chih-hsin
單位
出版者
著錄名稱、卷期、頁數 J. Mater. Chem. C, 2023, 11, 5378-5387.
摘要 An organic photo-coupler (OPC) is one of the optoelectronic devices that is packaged face-to-face with electrically isolated input and output components. Substantially, the performance of OPC depends on the detection capability of an organic photodetector (OPD) when irradiated by an organic light-emitting diode (OLED). When illuminated, a tandem OLED transmits light with a wavelength of 560 nm. Four different hole blocking layers (HBLs) in OPD structures, i.e., BPhen, 10 nm thick C60, 20 nm thick C60, and C60:LiF, are investigated to achieve a low dark current density, high current transfer ratio (CTR), higher cut-off frequency, and fast photo-response pulse of the OPC. Overall, at an applied bias of −3 V, the small molecule-based OPC demonstrates the lowest dark current density (OPC D) down to the level of 3.642 × 10−9 A cm−2, CTR (OPC A) above 18%, a wide cut-off frequency in the range of 644 kHz (OPC A) ≤ f−3dB ≤ 708 kHz (OPC D), and a transient photo-response faster than 500 ns at a frequency of 600 kHz. The thorough electrical and optical characterization carried out in this study is expected to pave the way for developing optimized OPCs for practical applications.
關鍵字
語言 zh_TW
ISSN
期刊性質 國內
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,電子版,紙本
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/124520 )