Nanoparticle-embedded actuator based on localized surface plasmon resonance

作者：Chen Chi Nan^*; Chyan J Y; Hsieh C Max; Yeh J Andrew

来源：Journal of Optics A: Pure and Applied Optics , 2008, 10(4): 044007.

DOI：10.1088/1464-4258/10/4/044007

• photothermal
• nanoparticles
• bimorph cantilever

The bimorph cantilever beams of high photothermal efficiency based on LSPR (localized surface plasmon resonance) of silver-NPs (silver-nanoparticles) were demonstrated. The silver-NPs converted absorbed optical energy of 14% into heat at maximum of 530 nm. The beams had a length of 350 mu m, a width of 40 mu m and the total thickness of 770 nm. They were composed of 400 nm thick PVP (poly(vinylpyrrolidone)) embedded with silver-NPs and 370 nm thick silicon nitride. The beams bent up vertically by a deflection of 30 mu m under an optical intensity of 500W cm(-2) using a green laser. The corresponding mechanical and thermal response times were 0.25 ms and 10 ms, respectively.

• 出版日期2008-4
• 单位清华大学; 中国科学院电工研究所