Durability improvements of two-dimensional metal nanoparticle sheets by molecular cross-linked structures between nanoparticles
Durability improvements of two-dimensional metal nanoparticle sheets by molecular cross-linked structures between nanoparticles
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DOI：
10.7567/jjap.57.03eg10
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发表时间：
2018-02
影响因子：
1.5
通讯作者：
N. Saito;Sou Ryuzaki;Pangpang Wang;Susie Park;Nobuyuki Sakai;T. Tatsuma;K. Okamoto;K. Tamada
中科院分区：
文献类型：
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作者：
N. Saito;Sou Ryuzaki;Pangpang Wang;Susie Park;Nobuyuki Sakai;T. Tatsuma;K. Okamoto;K. Tamada
二维金属纳米颗粒片的耐久性是实现基于等离子体的下一代光电器件如有机发光二极管的关键因素。在这里，我们报告的耐久性的Ag纳米粒子片之间形成链烷二硫醇（DT16）交联结构的改进。通过DT16包覆的Ag纳米粒子（AgDT16）的自组装制备了片状的交联结构，包覆率为10%。通过比较没有交联结构的Ag纳米颗粒片，发现AgDT 16片的热、有机溶剂和氧化反应的耐久性由于交联结构而得到改善。吸收光谱显示，没有该结构的银纳米颗粒片在每次耐久性测试中都明显受损，而AgDT 16片则保留下来。二维金属纳米颗粒片中纳米颗粒之间的分子交联结构被发现在包括金属纳米颗粒的等离子体光电器件的实现中具有潜在的关键作用。
The durability of two-dimensional metal nanoparticle sheets is a crucial factor for realizing next-generation optoelectronic devices based on plasmonics such as organic light-emitting diodes. Here, we report improvements in the durability of Ag nanoparticle sheets by forming alkanedithiol (DT16) cross-linked structures between the nanoparticles. The cross-linked structures in a sheet were fabricated by the self-assembly of DT16-capped Ag nanoparticles with 10% coverage (AgDT16). The durabilities for thermal, organic solvent, and oxidation reactions of AgDT16 sheets were found to be improved owing to the cross-linked structures by comparing Ag nanoparticle sheets without the cross-linked structures. The absorbance spectra revealed that the Ag nanoparticle sheets without the structure are markedly damaged by each durability test, whereas the AgDT16 sheets remain. The molecular cross-linked structures between nanoparticles in two-dimansional metal nanoparticle sheets were found to have the potential to play a key role in the realization of plasmonic optoelectronic devices including metal nanoparticles.