Journal of the Korean Vacuum Society (한국진공학회지)

The Korean Vacuum Society (한국진공학회)
권호 표지
DOI QR코드

DOI QR Code

Reduction of Light Reflectance from InAlP by the Texture Formation Using Ultra-Thin Pt Layer

Pt 금속 박막을 이용한 InAlP층의 텍스쳐 구조 형성 및 반사율 측정

  • Shin, Hyun Wook (Department of Applied Physics, Kyung Hee University) ;
  • Shin, Jae Cheol (Photonic-Energy Center, Korea Photonics Technology Institute) ;
  • Kim, Hyo Jin (Photonic-Energy Center, Korea Photonics Technology Institute) ;
  • Kim, Sung (Department of Applied Physics, Kyung Hee University) ;
  • Choe, Jeong-Woo (Department of Applied Physics, Kyung Hee University)
  • 신현욱 (경희대학교 응용물리학과) ;
  • 신재철 (한국광기술원 광에너지연구센터) ;
  • 김효진 (한국광기술원 광에너지연구센터) ;
  • 김성 (경희대학교 응용물리학과) ;
  • 최정우 (경희대학교 응용물리학과)
  • Received : 2013.02.18
  • Accepted : 2013.04.26
  • Published : 2013.05.30
Download PDF
⟨ Previous Next ⟩

Abstract

Textured surface has been fabricated to reduce the light reflectance from the solar cells. The textured surface is very suitable for the multi-junction III-V solar cells because it can decrease the light reflectance over a large wavelength range. In this study, we have generated a textured structure on InAlP which is used for the window layer of the multi-junction III-V solar cells. Ultra-thin Pt layer (0.7 nm) has been used for wet etching mask. An array of nanosized pyramid shape formed on InAlP surface dramatically reduces the light reflectance up to 13.7% over a large wavelength range (i.e., $0.3{\sim}1.5{\mu}m$).

태양전지의 표면에 텍스쳐 구조를 형성하면 빛의 반사율을 줄일 수 있으므로 태양전지의 효율을 증가시킬 수 있다. 또한 표면의 텍스쳐 구조는 넓은 파장대역에서 빛의 반사를 줄여주기 때문에 다중접합 III-V화합물 태양전지에 아주 유용하다. 본 연구에서는 얇은 Pt층을 식각 마스크로 사용하여 다중접합 III-V태양전지의 window층으로 사용되는 InAlP층에 다양한 텍스쳐 구조를 형성하고 반사율을 측정하였다. 습식식각에 의해 나노미터 크기로 형성된 피라미드 꼴 텍스쳐 구조는 $0.3{\sim}1.5{\mu}m$의 넓은 파장영역에서 빛의 반사율을 13.7%까지 감소시켰다.

Keywords

References

  1. A. Khan, S. Marupaduga, S. S. Anandakrishnan, M. Alam, N. J. Ekins-Daukes, H. S. Lee, T. Sasaki, M. Yamaguchi, T. Takamoto, T. Agui, K. Kamimura, M. Kaneiwa, and M. Imazumi, Appl. Phys. Lett. 85, 5218 (2004). https://doi.org/10.1063/1.1829136
  2. Y. Zhao, P. Fay, A. Wibowo, J. Liu, and C. Youtsey, J. Vac. Sci. Technol. B30(6), 06F401 (2012). https://doi.org/10.1116/1.4754306
  3. N. Dharmarasu, M. Yamaguchi, A. Khan, T. Yamada, T. Tanabe, S. Takagishi, T. Takamoto, T. Ohshima, H. Itoh, M. Imaizumi, and S. Matsuda, Appl. Phys. Lett. 79, 2399 (2001). https://doi.org/10.1063/1.1409270
  4. D. J. Aiken, Solar Energy Materials & Solar Cells 64, 393 (2000). https://doi.org/10.1016/S0927-0248(00)00253-1
  5. S. L. Diedenhofen, G. Grzela, E. Haverkamp, G. Bauhuis, J. Schermer, and J. G. Rivas, Solar Energy Meterials & Solar Cells 101, 308 (2012). https://doi.org/10.1016/j.solmat.2012.02.022
  6. A. Atzek, J. J. Capart, R. L. Carabb, K. H. Heffels, and G. Seibert, Proceedings of the International Colloquium ECOSEC, Toulouse, (Gordon and Breach, New York, 1971), p. 349.
  7. X. Li and P. W. Bohn, Appl. Phys. Lett. 77, 2572 (2000). https://doi.org/10.1063/1.1319191
  8. Y. H. Ko, D. H. Joo, and J. S. Yu, J. Korean Vac. Soc. 21, 99 (2012). https://doi.org/10.5757/JKVS.2012.21.2.99
  9. S. Koynov, M. S. Brandt, and M. Stutzmann, Appl. Phys. Lett. 88, 203107 (2006). https://doi.org/10.1063/1.2204573
  10. S. Koynov, M. S. Brandt, and M. Stutzmann, Phys. Stat. Sol. (RRL) 1, R53 (2007). https://doi.org/10.1002/pssr.200600064
  11. L. L. Ma, Y. C. Zhou, N. Jiang, X. Lu, J. Shao, W. Lu, J. Ge, X. M. Ding, and X. Y. Hou, Appl. Phys. Lett. 88, 171907 (2006). https://doi.org/10.1063/1.2199593
  12. J. C. Shin, D. Chanda, W. Chern, K. J. Yu, J. A. Rogers, and X. Li, IEEE J. Photovoltaics 2, 129 (2012). https://doi.org/10.1109/JPHOTOV.2011.2180894
  13. Y. -A. Chang, Z. -Y. Li, H. -C. Kuo, T. -C. Lu, S. -F. Yang, L. -W. Lai, L. -H. Lai, and S. -C. Wang, Semicond. Sci. Techrol. 24, 085007 (2009). https://doi.org/10.1088/0268-1242/24/8/085007
  14. T. Yokoyama, H. Asoh, and S. Ono, Phys. Status Solidi A. 207, 934 (2010).
  15. H. K. Park, J. H. Moon, S. Yoon, and Y. R. Do, Journal of The Electrochemical Society 158, J143 (2011). https://doi.org/10.1149/1.3556703
  16. I. G. Park, M. S Yun, D. H. Hyun, B. J. Jin, J. Y. Choi, J. S. Kim, H. D. Kang, and G. C. Kwon, J. Korean Vac. Soc. 19, 314 (2010). https://doi.org/10.5757/JKVS.2010.19.4.314

Cited by

  1. A Study of Photo-voltaic Property in VO2Film vol.22, pp.4, 2013, https://doi.org/10.5757/JKVS.2013.22.4.193