Hwang Taek Yong, Vorobyev A Y, Guo Chunlei
The Institute of Optics, University of Rochester, Rochester, New York 14627, USA.
Opt Express. 2011 Jul 4;19 Suppl 4:A824-9. doi: 10.1364/OE.19.00A824.
Through femtosecond laser irradiation, we produce in this work a unique type of surface nanostructure on Al that have enhanced absorption at UV and visible but a relatively small emissivity in infrared. By integrating this laser-treated Al to a solar-driven thermoelectric generator, we show that the thermoelectric generator integrated with the femtosecond laser-treated Al foil generates a significantly higher power than the ones without. Our study shows that our technique can dramatically enhance the efficiency of solar-driven thermoelectric devices that may lead to a leap forward in solar energy harnessing.
通过飞秒激光辐照，我们在本工作中在铝上制备了一种独特的表面纳米结构，该结构在紫外和可见光区域具有增强的吸收，但在红外区域的发射率相对较小。通过将这种经过激光处理的铝集成到太阳能驱动的热电发电机中，我们表明，与飞秒激光处理的铝箔集成的热电发电机产生的功率明显高于未集成的热电发电机。我们的研究表明，我们的技术可以显著提高太阳能驱动的热电器件的效率，这可能会在太阳能利用方面带来飞跃。
