Direct Micro/Nano Patterning of Multiple Colored Quantum Dots by Large Area and Multilayer Imprinting

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• 作者：Yong Suk Oh ; Kyung Heon Lee ; Hyunki Kim ; Duk Young Jeon ; Seung Hwan Ko ; Costas P. Grigoropoulos ; Hyung Jin Sung
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：May 31, 2012
• 年：2012
• 卷：116
• 期：21
• 页码：11728-11733
• 全文大小：412K
• 年卷期：v.116,no.21(May 31, 2012)
• ISSN：1932-7455

文摘

A novel direct method of micro/nano quantum dot (QD) patterning via one-step imprinting over a large area at low temperatures and low pressures was demonstrated as an alternative to conventional vacuum deposition and photolithography methods. More complex QD patterning could be demonstrated by expanding the QD direct imprinting process for multiple colored QD and patterning on the multiple layers. Additionally, a self-alignment scheme was developed to pattern multiple layers without the need for laborious alignment steps. Our approach may be useful for QD-based optoelectronic device fabrication and patterning on large flexible substrates due to the low-temperature requirements of this process.