“Black Silicon” Formation by Nd:YAG Laser Radiation

Abstract:

Article Preview

The possibility to form “black silicon” on the surface of Si structure by Nd:YAG laser radiation has been shown. The shape and height of micro-cone structure strongly depends on Nd:YAG laser intensity and number of laser pulses. Light is repeatedly reflected between the cones in the way that most of it is absorbed. Si micro-cone structure spectral thermal radiation is close to black body spectral radiance, which makes this structure useful for solar cells application. The micro-chemical analysis performed by SEM has shown that the microstructures contain NiSi2. This was approved by presence of LO phonon line in Raman back scattering spectrum. The control of micro-cone shape and height was achieved by changing the laser intensity and number of pulses.

Info:

Periodical:

Edited by:

Arturs Medvids

Pages:

44-47

Citation:

A. Medvid' et al., "“Black Silicon” Formation by Nd:YAG Laser Radiation", Advanced Materials Research, Vol. 222, pp. 44-47, 2011

Online since:

April 2011

Export:

Price:

$38.00

[1] M. Halbwax, T. Sarnet, Ph. Delaporte, M. Sentis, H. Etienne, F. Torregrosa, V. Vervisch, I. Perichaud and S. Martinuzzi: Thin Solid Films, 516 (2008), p.6791.

DOI: https://doi.org/10.1016/j.tsf.2007.12.117

[5] A. Medvid', A. Karabko, P. Onufrijevs, E. Daukšta, A. Pikulins and A. Dostanko: Functional Materials and Nanotechnologies (2009). p.174.

[2] S. Liu, J. Zhu, Y. Liu, L. Zhao: Materials Letters 62 (2008), p.3881.

[3] M. Jeon, H. Uchiyama, K. Kamisako: Materials Letters 63 (2009), p.246.

[4] Information on http: /www. technologyreview. com/energy/21611.