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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/8825
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| タイトル: | Enhancing hole transports and generating hole traps by doping organic hole transport layers with p-type molecules of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane |
| 著者: | Matsushima, Toshinori
Adachi, Chihaya |
| キーワード: | Hole transport
Hole trap
p-doped organic hole-transport layer
Thermally stimulated current
Field-effect transistor |
| 発行日: | 2008-11-28 |
| 出版者: | Elsevier |
| 誌名: | Thin Solid Films |
| 巻: | 517 |
| 号: | 2 |
| 開始ページ: | 874 |
| 終了ページ: | 877 |
| DOI: | 10.1016/j.tsf.2008.07.008 |
| 抄録: | We investigated the relationship between the hole-transport and hole-trap characteristics of N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine (α-NPD) doped with p-type molecules of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F_4-TCNQ) at various concentrations. The results of our current density–voltage, field-effect transistor, and thermally stimulated current studies revealed that the current densities of hole-only α-NPD devices at a certain driving voltage increased in the F_4-TCNQ concentration region between 0 mol% and 3 mol% due to the generation of free holes while the hole mobilities of the α-NPD layers decreased due to an increase in hole-trap concentration and deepened hole-trap energy levels, which were caused by the F_4-TCNQ doping. The optimized doping concentration of F_4-TCNQ was 3 mol%, which provided the highest current density for the hole-only device. On the other hand, since the increase in free-hole concentration was overcome by the decrease in hole mobility, the current density of the hole-only device decreased at the F_4-TCNQ concentration of 4 mol% when compared with the optimized concentration. |
| Rights: | NOTICE: This is the author's version of a work accepted for publication by Elsevier. Toshinori Matsushima and Chihaya Adachi, Thin Solid Films, 517(2), 2008, 874-877, http://dx.doi.org/10.1016/j.tsf.2008.07.008 |
| URI: | http://hdl.handle.net/10119/8825 |
| 資料タイプ: | author |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
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| C12723.pdf | | 243Kb | Adobe PDF | 見る/開く |
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