English, Article edition: STRUCTURAL AND OPTICAL PROPERTIES OF n-TYPE POROUS SILICON: EFFECT OF LIGHT ILLUMINATION N. JEYAKUMARAN; B. NATARAJAN; N. PRITHIVIKUMARAN; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • STRUCTURAL AND OPTICAL PROPERTIES OF n-TYPE POROUS SILICON: EFFECT OF LIGHT ILLUMINATION
Author
  • N. JEYAKUMARAN
  • B. NATARAJAN
  • N. PRITHIVIKUMARAN
  • S. RAMAMURTHY
  • V. VASU
Physical Description
  • article
Notes
  • Porous silicon (PS) layers have been prepared from n-type silicon wafers of (100) orientation. SEM, FTIR, and PL have been used to characterize the morphological and optical properties of PS. The influence of varying light illumination in the anodizing solution, on structural and optical properties of PS, has been investigated. It is observed that pore size increases with light illumination level, attains maximum for 17.5 mW/​m2 and then decreases. The PL spectrum peak shifts toward the higher energy side, which supports the quantum confinement effect in PS. The FTIR shows that the SiâHn peaks are observed at the surface of the PS layer and these chemical species also give raise the PL in PS.
  • Band gap, light illumination, hydrogen bonds, porous silicon, porosity, peak intensity, luminescence, quantum confinement
  • RePEc:wsi:srlxxx:v:15:y:2008:i:06:p:897-901
Language
  • English
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