0

Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Dependence of the photoluminescence from silicon nanostructures on the size of silicon nanoparticles

[+] Author Affiliations
Wenge Ding, Jiong Zheng, Wenhao Qi, Wei Yu, Guangsheng Fu

Hebei Univ. (China)

Proc. SPIE 7135, Optoelectronic Materials and Devices III, 713508 (November 18, 2008); doi:10.1117/12.802282
Text Size: A A A
From Conference Volume 7135

  • Optoelectronic Materials and Devices III
  • Yi Luo; Jens Buus; Fumio Koyama; Yu-Hwa Lo
  • Hangzhou, China | October 26, 2008

abstract

The size dependence of photoluminescence (PL) from nanostructure semiconductors is examined. Considering the dependence of PL on both the silicon nanoparticles (Si NPs) sizes and their dispersion, we incorporated quantum confinement effects along with the effects of localized surface states to obtain an analytical expression for the PL spectra of silicon nanostructures. In order to obtain an insight into the effects of various parameters influencing the PL spectral profile in silicon nanostructures, we computed the PL spectra using relevant numbers in the expression. The computer-simulated results show (i) a marked deviation of PL spectrum from the normal distribution at higher energies due to the increase in oscillator strength with the decreasing mean Si NP size, (ii) The peak position redshifts and the peak intensity reduces with an increase in the standard deviation, and (iii) the luminescence peak blueshifts as the mean Si NP size decreases. To test our model, the Si NPs embedded in silicon nitride films were prepared by helicon wave plasma-enhanced chemical vapor deposition (HWP-CVD) technique using the H2 diluted SiH4 and N2 as reactant gas sources. The simulated PL spectra fit the experimental one rather nicely. And our results can explain the reported experimental observations on the luminescence from Si NPs.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Wenge Ding ; Jiong Zheng ; Wenhao Qi ; Wei Yu and Guangsheng Fu
"Dependence of the photoluminescence from silicon nanostructures on the size of silicon nanoparticles", Proc. SPIE 7135, Optoelectronic Materials and Devices III, 713508 (November 18, 2008); doi:10.1117/12.802282; http://dx.doi.org/10.1117/12.802282


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
 

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

Buy this article ($18 for members, $25 for non-members).
Sign In