Bulletin of Materials Science

, Volume 17, Issue 5, pp 513–522 | Cite as

Origin of visible photoluminescence from porous silicon as studied by Raman spectroscopy

  • A Roy
  • K Jayaram
  • A K Sood
Special Section On Porous Silicon


In this paper we discuss the different models proposed to explain the visible luminescence in porous silicon (PS). We review our recent photoluminescence and Raman studies on PS as a function of different preparation conditions and isochronal thermal annealing. Our results can be explained by a hybrid model which incorporates both nanostructures for quantum confinement and silicon complexes (such as SiH x and siloxene) and defects at Si/SiO2 interfaces as luminescent centres.


Porous silicon nanoparticles photoluminescence Raman spectroscopy 


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Copyright information

© the Indian Academy of Sciences 1994

Authors and Affiliations

  • A Roy
    • 1
    • 2
  • K Jayaram
    • 1
  • A K Sood
    • 1
    • 3
  1. 1.Department of PhysicsIndian Institute of ScienceBangaloreIndia
  2. 2.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangaloreIndia
  3. 3.Jawaharlal Nehru Centre for Advanced Scientific ResearchBangaloreIndia

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