Photoluminescence submicrometre spatial modulation of 6,13 pentacenequinone thin films

被引：5
作者：
Parisse, P. [2 ]
Luciani, D.
Santucci, S.
Zuppella, P. [1 ]
Tucceri, P. [1 ]
Reale, A. [1 ]
Ottaviano, L.
机构：
[1] Univ Aquila, Ist Nazl Fis Nucl, Gc LNGS, Dept Phys, I-67010 Coppito, Laquila, Italy
[2] INFM, Reg Lab, CNR, CASTI, I-67010 Coppito, Laquila, Italy
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2008年 / 41卷 / 11期
关键词：
D O I：
10.1088/0022-3727/41/11/112003
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate that uniform films of 6,13-pentacenequinone (PQ) deposited by vacuum thermal evaporation on prepatterned PMMA/Si(1 0 0) substrates yield under UV illumination a yellow photoluminescence (PL) response with strong spatial modulation at the micrometre (and submicrometre) scale. The PL patterns are obtained from engineered lithographed substrates (arrays of PMMA lines on bare Si(1 0 0) fabricated by x-ray interference lithography, using a tabletop 46.9 nm Ar laser). Strongly enhanced light emission is observed in correspondence to the PQ film lying on the PMMA lines with a PL efficiency 10 +/- 1 times higher than the one measured on the PQ/Si interface.
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页数：4
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