http://iet.metastore.ingenta.com
1887

Stoichiometric effects on optical properties of cadmium sulphide quantum dots

Stoichiometric effects on optical properties of cadmium sulphide quantum dots

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Circuits, Devices & Systems — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Size quantised cadmium sulphide (CdS) nanocrystalline thin films with different particle sizes and stoichiometric ratios were successfully grown on indium tin oxide substrates using an aqueous synthetic route. The effect of cadmium (Cd) to sulphur (S) ratio on the optical properties of CdS nanocrystalline films was investigated using EDAX, UV–vis spectroscopy, photoluminescence and Raman spectroscopy. A satisfactory stoichiometric condition was achieved for 0.13 M concentration of thiourea whereas concentrations in the range of 1–1.2% of mercaptoethanol capping agents produced values much smaller than Wannier exciton diameter for CdS grain sizes, leading to quantum confinement. Photoluminescence emission bands and Raman peaks were analysed for the physical understanding of optimum growth of CdS quantum dots.

References

    1. 1)
      • S. Kar , S. Chaudhuri . Cadmium sulphide one-dimensional nanostructures: synthesis, characterization and application. Synth. React. Inorg. Met.-Org. Nano-Met. Chem. , 289 - 312
    2. 2)
    3. 3)
      • H. Murai , T. Abe , J. Matsuda , H. Sato , S. Chiba , Y. Kashiwaba . Improvement in the light emission characteristics of CdS: Cu/CdS diodes. Appl. Surf. Sci. , 351 - 354
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
      • J.L. Mohanan , S.L. Brock . CdS aerogels: effect of concentration and primary particle size on surface area and opto-electronic properties. J. Sol–Gel Sci. Technol. , 341 - 350
    10. 10)
      • S. Chaure , N.B. Chaure , R.K. Pandey . Electric field assisted growth of self-organized cds films: size dependent structural and optical properties. J. Nanosci. Nanotechnol. , 945 - 951
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
      • K. Nishidate , T. Sato , Y. Matsukura , M. Baba , M. Hasegawa . Density-functional electronic structure calculations for native defects and Cu impurities in CdS. Phys. Rev. B , 3
    16. 16)
      • V.Q. Lam , S. Turrell , A. Martucci , M. Bouazaoui , B. Capoen . Synthesis and optical properties of MPTMS-capped CdS quantum dots embedded in TiO2 thin films for photonic applications. J. Non-Cryst. Solids , 3315 - 3319
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cds_20070048
Loading

Related content

content/journals/10.1049/iet-cds_20070048
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address