volume | PIER Journals

Abstract

Optical nano-antenna offers a new scheme for solar energy collection by breaking through the band-gap limitation of semiconductor materials. However, complex structure, low efficiency, and narrow bandwidth remain major issues. To address these problems, we propose a novel helical optical nano-antenna based on the bridge structure. The antenna structure consists of two coplanar Archimedes spiral arms and a base layer. We analyze the influence mechanism of structural factors on its radiation efficiency and polarization characteristics. Our results show that the antenna structure achieves a total radiation efficiency of 83.13% in the wide wavelength range of 400 to 1600 nm, which is significantly higher than that of the previously proposed dipole nano-antenna. For different linearly polarized incident waves, the antenna structure obtains the same order electric field at the spiral gap, which indicates that the antenna structure can fully consider the polarization characteristics of sunlight. It fundamentally solves the problem that the linearly polarized antenna can only receive half of the solar energy, improving the absorption efficiency.

1. Hong, L., X. Wang, H. Zheng, L. He, H. Wang, H. Yu, et al. "High efficiency silicon nanohole/organic heterojunction hybrid solar cell," Appl. Phys. Lett., Vol. 104, 053104, 2014.
doi:10.1063/1.4863965

2. Shockley, W. and H. J. Queisser, "Detailed balance limit of efficiency of p-n junction solar cells," Journal of Applied Physics, Vol. 32, No. 3, 510-519, 1961.
doi:10.1063/1.1736034

3. Kotter, D. K., S. D. Novack, W. D. Slafer, et al. "Theory and manufacturing processes of solar nano-antenna electromagnetic collectors," Journal of Solar Energy Engineering, Vol. 132, No. 1, 11-14, 2010.
doi:10.1115/1.4000577

4. Goswami, D. Y., S. Vijayaraghavan, S. Lu, et al. "New and emerging developments in solar energy," Solar Energy, Vol. 76, No. 1, 33-43, 2004.
doi:10.1016/S0038-092X(03)00103-8

5. Kotter, D. K., S. D. Novack, W. D. Slafer, et al. "Solar nantenna electromagnetic collectors," ASME 2008 2nd International Conference on Energy Sustainability Collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences, 409-415, American.

6. Bailey, R. L., "A proposed new concept for a solar-energy converter," Journal of Engineering for Gas Turbines and Power, Vol. 94, No. 2, 73-77, 1972.
doi:10.1115/1.3445660

7. Marks, A. M., "Device for conversion of light power to electric power: US,", US4445050[P], 1984.

8. Balanis, C. A., Antenna Theory: Analysis and Design, 3rd Ed., 147-150, John Wiley & Sons Inc., 2005.

9. Vandenbosch, G. A. E. and Z. Ma, "Upper bounds for the solar energy harvesting efficiency of nano-antennas," Nano Energy, Vol. 1, No. 3, 494-502, 2012.
doi:10.1016/j.nanoen.2012.03.002

10. Hussein, M., N. F. F. Areed, M. F. O. Hameed, et al. "Design of flower-shaped dipole nano-antenna for energy harvesting," IET Optoelectronics, Vol. 8, No. 4, 167-173, 2014.
doi:10.1049/iet-opt.2013.0108

11. Sarehraz, M., K. Buckle, T. Weller, et al. "Rectenna developments for solar energy collection," Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, 78-81, 2005.
doi:10.1109/PVSC.2005.1488073

12. Ma, Z. and G. A. E. Vandenbosch, "Optimal solar energy harvesting efficiency of nano-rectenna systems," Solar Energy, Vol. 88, No. 1, 163-174, 2013.
doi:10.1016/j.solener.2012.11.023

13. Saynak, U., "Novel rectangular spiral antennas,", 4-6, Izmir Institute of Technology, 2007.

14. Zhu, Z., S. Joshi, B. Pelz, et al. "Overview of optical rectennas for solar energy harvesting," SPIE Solar Energy Technology. International Society for Optics and Photonics, 88240O-88240O-11, 2013.

15. Gallo, M., L. Mescia, O. Losito, et al. "Design of optical antenna for solar energy collection," Energy, Vol. 39, No. 1, 27-32, 2012.
doi:10.1016/j.energy.2011.02.026

16. Bozzetti, M., G. De Candia, M. Gallo, et al. "Analysis and design of a solar rectenna," IEEE International Symposium on Industrial Electronics, 2001-2004, 2010.

17. Sabaawi, A. M. A., C. C. Tsimenidis, and B. S. Sharif, "Infra-red spiral nano-antennas," Antennas and Propagation Conference, 1-4, 2012.

18. Jia, H., H. Liu, and Y. Zhong, "Role of surface plasmon polaritons and other waves in the radiation of resonant optical dipole antennas," Scientific Reports, Vol. 5, 2015.
doi:10.9734/JSRR/2015/14076

19. Novotny, L. and B. Hecht, Principles of Nano-optics, Vol. 247, Cambridge University Press, 2012.
doi:10.1017/CBO9780511794193

20. Lu, G., T. Zhang, W. Li, et al. "Single-molecule spontaneous emission in the vicinity of an individual gold nanorod," The Journal of Physical Chemistry C, Vol. 115, No. 32, 15822-15828, 2011.
doi:10.1021/jp203317d

21. Mohammadi, A., F. Kaminski, V. Sandoghdar, et al. "Fluorescence enhancement with the optical (bi-)conical antenna," The Journal of Physical Chemistry C, Vol. 114, No. 16, 7372-7377, 2010.
doi:10.1021/jp9094084

22. Kaminski, F., V. Sandoghdar, and M. Agio, "Finite-difference time-domain modeling of decay rates in the near field of metal nanostructures," Journal of Computational and Theoretical Nanoscience, Vol. 4, No. 3, 635-643, 2007.
doi:10.1166/jctn.2007.028

23. Wang, I. and Y. Du, "Broadband optical antenna with a disk structure," SPIE/OSA/IEEE Asia Communications and Photonics. International Society for Optics and Photonics, Vol. 8307, No. 1, 1-7, 2011.

24. Johnson, P. B. and R. W. Christy, "Optical constants of the noble metals," Physical Review B, Vol. 6, No. 12, 4370, 1972.
doi:10.1103/PhysRevB.6.4370

25. Gao, H., K. Li, F. Kong, H. Xie, and J. Zhao, "Optimizing nano-optical antenna for the enhancement of spontaneous emission," Progress In Electromagnetics Research, Vol. 104, 313-331, 2010.
doi:10.2528/PIER09111607

26. Novotny, L., "Effective wavelength scaling for optical antennas," Physical Review Letters, Vol. 98, No. 26, 1-4, 2007.
doi:10.1103/PhysRevLett.98.266802

Dr. Guo Liu

Dr. Chi Zhao

Dr. Jingfei Jiang

Dr. Zhaozhao Gao

Dr. Jie Gu