Earticle

초록

영어

Photoluminescent porous silicon (PSi) were prepared by an electrochemical etch of n-type silicon under the illumination with a 300 W tungsten filament bulb for the duration of etch. The red photoluminescence emitting at 620 nm with an excitation wavelength of 450 nm is due to the quantum confinement of silicon nanocrystal in porous silicon. As-prepared PSi was sonicated, fractured, and centrifuged in toluene to obtain photoluminescence silicon quantum dots. BET and BHJ methods were employed to study the specific surface area of as-prepared PSi. Optical characterization of red photoluminescent silicon nanocrystal was investigated by UV-vis and fluorescence spectrometer. Also SEM and TEM images of porous silicon and nanoparticles were investigated.

목차

Abstract
 1. Introduction
 2. Experimental Section
  2.1. Preparation of Photoluminescent PSi
  2.2. Preparation of Red-Luminescent Si QDs
  2.3. Extraction of Red PL Nanoparticles
  2.4. Passivation of Si Nanoparticles
  2.5. Instruments and Data Acquisitions
 3. Results and Discussion
 4. Conclusions
 Acknowledgments
 References

키워드

저자

• Jin Soo Kim [ Department of Carbon Materials, Chosun University ]
• Honglae Sohn [ Department of Carbon Materials, Department of Chemistry, Chosun University ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  통합자연과학논문집(구 조선자연과학논문집) [Journal of Integrative Natural Science]

• 간기

  계간

• pISSN

  2005-1042

• 수록기간

  2008~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 405 DDC 505