Size Control of Gold Nanoparticles Grown on Polyaniline Nanofibers for Bistable Memory Devices

作者：Baker Christina O; Shedd Brian; Tseng Ricky J; Martinez Morales Alfredo A; Ozkan Cengiz S; Ozkan Mihri; Yang Yang; Kanert Richard B^*

来源：ACS Nano, 2011, 5(5): 3469-3474.

DOI：10.1021/nn200992w

• polyaniline nanofibers
• gold nanoparticles
• organic-inorganic nanocomposite
• nanoparticle size/growth control
• bistable memory devices

Controlling reaction temperature for a set time enables the size of gold nanopartides autoreduced on the surface of polyaniline nanofibers to be controlled. The size of the gold nanoparticles can be used to tune the electrical bistable memory effect In gold/polyaniline nanofiber composite devices. Turn-on voltages and on/off ratios improve with decreasing nanoparticle size, making this a promising method to enhance performance and create smaller devices. Long-term stability of the composites can be improved by the addition of stabilizers following autoreduction of the gold nanoparticles.

• 出版日期2011-5