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Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (S1): 260.

• Articles • Previous Articles     Next Articles

Voltage-tunable Electroluminescence of Porous Silicon

LI Jing-jian1, WANG Rong-qiu1, LIU Zhong-fan1, CAI Sheng-min1, ZHANG Shu-ling2   

  1. 1. Electrophotonic Intelligent Materials Research Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China;
    2. Department of Physics, Peking University, Beijing, 100871, P. R. China
  • Received:1995-08-15 Online:1995-12-31 Published:1995-12-31
  • Supported by:

    National Natural Science Foundation of China

PDF (PC)

Abstract:

The voltage-tunable EL was obtained upon cathodic bias of n-type PS in contact with aqueous solution containing the persulphate ion. The EL behavior as a function of the external voltage and time was investigated. The results suggest that the mechanisms of voltage-tunable EL of n-typt PS cannot easily be attributed to quantum confinement effect.

Key words: Voltage-tunable electroluminescence, n-lype PS, Quantum confinement effect

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