Cross-Stacked Single-Crystal Organic Nanowire p鈥搉 Nanojunction Arrays by Nanotransfer Printing

详细信息    查看全文

• 作者：Kyung Sun Park ; Ki Seok Lee ; Chan-mo Kang ; Jangmi Baek ; Kyu Seok Han ; Changhee Lee ; Yong-Eun Koo Lee ; Youngjong Kang ; Myung Mo Sung
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：January 14, 2015
• 年：2015
• 卷：15
• 期：1
• 页码：289-293
• 全文大小：330K
• ISSN：1530-6992

文摘

We fabricated cross-stacked organic p鈥搉 nanojunction arrays made of single-crystal 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-PEN) and fullerene (C₆₀) nanowires as p-type and n-type semiconductors, respectively, by using a nanotransfer printing technique. Single-crystal C₆₀ nanowires were synthesized inside nanoscale channels of a mold and directly transferred onto a desired position of a flexible substrate by a lubricant liquid layer. In the consecutive printing process, single-crystal TIPS-PEN nanowires were grown in the same way and then perpendicularly aligned and placed onto the C₆₀ nanowire arrays, resulting in a cross-stacked single-crystal organic p鈥搉 nanojunction array. The cross-stacked single-crystal TIPS-PEN/C₆₀ nanowire p鈥搉 nanojunction devices show rectifying behavior with on/off ratio of 鈭?3 as well as photodiode characteristic with photogain of 鈭? under a light intensity of 12.2 mW/cm². Our study provides a facile, solution-processed approach to fabricate a large-area array of organic crystal nanojunction devices in a desired arrangement for future nanoscale electronics.