用于制造发光有机发光二极管的锗烷/锡烷封端聚硅烷的合成与表征

Synthesis and characterization of germane/stannane-capped polysiloles for the fabrication of luminescent OLED.

作者信息

Kim Myoung-Hee, Woo Hee-Gweon, Kim Whan Gi, Cho Myong-Shik

机构信息

Alan G. MacDiarmid Energy Research Institute (AMERI), Nanotechnology Research Center (NTRC) and Department of Chemistry, Chonnam National University, Gwangju 500-757, Korea.

出版信息

J Nanosci Nanotechnol. 2009 Dec;9(12):7250-3. doi: 10.1166/jnn.2009.1650.

DOI:10.1166/jnn.2009.1650

PMID:19908767

Abstract

Dehydropolymerization (with various inorganic hydrides) and subsequent germane/stannane-capping (with Me2GeHCI and Ph2SnHCI) of 1,1-dihydrotetraphenylsilole (1) give electroluminescent germane/stannane-capped polysiloles (2) in high yield. The polymerization yield and molecular weight with Selectride increase in the order L-Selectride < N-Selectride < K-Selectride. The molecular weights increase in the order Red-Al < K-Selectride < Super Hydride. The germane/stannane-capped polysiloles 2 emit at 521 nm and are electroluminescent at 522 nm. The fluorescence quantum yield of 2 in toluene is (1.66 +/- 0.26) x 10(-2). The emission color is green and the maximum brightness of the device is 2,800 cd/m2 with a luminous efficiency of 0.68 lm/W. The type of end group exhibited no appreciable effect on the luminescent properties of polysilole backbone. Thus, the germane/stannane-capped polysiloles are found to be a good material for OLED fabrication.

摘要

1,1 - 二氢四苯基硅环戊二烯（1）通过脱氢聚合反应（与各种无机氢化物）以及随后的锗烷/锡烷封端反应（与二甲基锗氢氯和二苯基锡氢氯）可高产率地得到电致发光的锗烷/锡烷封端的聚硅烷（2）。使用Selectride时，聚合产率和分子量按L - Selectride < N - Selectride < K - Selectride的顺序增加。分子量按Red - Al < K - Selectride < Super Hydride的顺序增加。锗烷/锡烷封端的聚硅烷2在521 nm处发射，在522 nm处电致发光。2在甲苯中的荧光量子产率为(1.66 ± 0.26) × 10⁻²。发射颜色为绿色，器件的最大亮度为2800 cd/m²，发光效率为0.68 lm/W。端基类型对聚硅烷主链的发光性能没有明显影响。因此，锗烷/锡烷封端的聚硅烷被发现是用于有机发光二极管制造的良好材料。