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Synthesis of CdS nanocrystals in polymeric films studied by in-situ GID and GISAXS

Di Luccio, Tiziana ; Carbone, Dina LU ; Masala, Silvia ; Ramachandran, Karthik and Kornfield, Julie (2015) 2015 MRS Spring Meeting In Materials Research Society Symposium Proceedings 1810. p.9-14
Abstract

In this work, we describe the synthesis of CdS nanocrystals in thin polymeric films by in-situ Grazing Incidence Diffraction (GID) and Grazing Incidence Small Angle Scattering (GISAXS). The 2D GISAXS patterns indicate how the precursor structure is altered as the temperature is varied from 25°C to 300°C. At 150°C, the CdS nanocrystals start to arrange themselves in a hexagonal lattice with a lattice parameter of 27 A. The diffraction intensity from the hexagonal lattice reaches a maximum at 170"C and decreases steadily upon further heating above 220°C indicating loss of symmetry. Correspondingly, the GID scans at 170°C show strong crystalline peaks from cubic CdS nanocrystals that are about 2 nm size. The results indicate that a... (More)

In this work, we describe the synthesis of CdS nanocrystals in thin polymeric films by in-situ Grazing Incidence Diffraction (GID) and Grazing Incidence Small Angle Scattering (GISAXS). The 2D GISAXS patterns indicate how the precursor structure is altered as the temperature is varied from 25°C to 300°C. At 150°C, the CdS nanocrystals start to arrange themselves in a hexagonal lattice with a lattice parameter of 27 A. The diffraction intensity from the hexagonal lattice reaches a maximum at 170"C and decreases steadily upon further heating above 220°C indicating loss of symmetry. Correspondingly, the GID scans at 170°C show strong crystalline peaks from cubic CdS nanocrystals that are about 2 nm size. The results indicate that a temperature of 170°C is sufficient to synthesize CdS nanocrystals without degradation of the polymer matrix (Topas) in thin films (about 30nm).

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author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
host publication
Insights for Energy Materials Using In-Situ Charaterization
series title
Materials Research Society Symposium Proceedings
editor
Eres, G. ; Chueh, W. ; Baniecki, J. ; Arena, D. and Alamgir, F.
volume
1810
pages
6 pages
publisher
Materials Research Society
conference name
2015 MRS Spring Meeting
conference location
San Francisco, United States
conference dates
2015-04-06 - 2015-04-10
external identifiers
  • scopus:84985916906
ISSN
0272-9172
ISBN
9781510826625
DOI
10.1557/opl.2015.676
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2015 Materials Research Society.
id
c42cecff-70f3-4052-8f60-599d01542722
date added to LUP
2021-12-15 11:58:48
date last changed
2022-04-27 06:55:11
@inproceedings{c42cecff-70f3-4052-8f60-599d01542722,
  abstract     = {{<p>In this work, we describe the synthesis of CdS nanocrystals in thin polymeric films by in-situ Grazing Incidence Diffraction (GID) and Grazing Incidence Small Angle Scattering (GISAXS). The 2D GISAXS patterns indicate how the precursor structure is altered as the temperature is varied from 25°C to 300°C. At 150°C, the CdS nanocrystals start to arrange themselves in a hexagonal lattice with a lattice parameter of 27 A. The diffraction intensity from the hexagonal lattice reaches a maximum at 170"C and decreases steadily upon further heating above 220°C indicating loss of symmetry. Correspondingly, the GID scans at 170°C show strong crystalline peaks from cubic CdS nanocrystals that are about 2 nm size. The results indicate that a temperature of 170°C is sufficient to synthesize CdS nanocrystals without degradation of the polymer matrix (Topas) in thin films (about 30nm).</p>}},
  author       = {{Di Luccio, Tiziana and Carbone, Dina and Masala, Silvia and Ramachandran, Karthik and Kornfield, Julie}},
  booktitle    = {{Insights for Energy Materials Using In-Situ Charaterization}},
  editor       = {{Eres, G. and Chueh, W. and Baniecki, J. and Arena, D. and Alamgir, F.}},
  isbn         = {{9781510826625}},
  issn         = {{0272-9172}},
  language     = {{eng}},
  pages        = {{9--14}},
  publisher    = {{Materials Research Society}},
  series       = {{Materials Research Society Symposium Proceedings}},
  title        = {{Synthesis of CdS nanocrystals in polymeric films studied by in-situ GID and GISAXS}},
  url          = {{http://dx.doi.org/10.1557/opl.2015.676}},
  doi          = {{10.1557/opl.2015.676}},
  volume       = {{1810}},
  year         = {{2015}},
}