کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5376969 | 1504334 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of charge-carrier injection characteristics in NPB/Alq3 heterojunction devices
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of charge-carrier injection characteristics in NPB/Alq3 heterojunction devices Investigation of charge-carrier injection characteristics in NPB/Alq3 heterojunction devices](/preview/png/5376969.png)
چکیده انگلیسی
The effect of copper phthalocyanine (CuPc) and LiF interfacial layers on the charge-carrier injection in N,Nâ²-di(naphthalene-1-yl)-N,Nâ²-diphenyl-benzidine (NPB)/tris(8-hydroxyquinoline) aluminium (Alq3) organic heterojunction devices have been studied through the analysis of current-voltage characteristics. The investigation clearly demonstrated that the hole injection into NPB from anode is Fowler-Nordheim (FN) tunneling and the electron injection into Alq3 from cathode is Richardson-Schottky (RS) thermionic emission. The barrier heights obtained from the FN and RS models proved that the band alignments for charge-carrier injection are greatly improved by the CuPc and LiF interfacial layers, which should fully clarify the role of the interfacial layer on the improvement of device performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 325, Issues 2â3, 20 June 2006, Pages 225-230
Journal: Chemical Physics - Volume 325, Issues 2â3, 20 June 2006, Pages 225-230
نویسندگان
Jiangshan Chen, Dongge Ma,