Binding characteristics of surface ligands on PbSe QDs and impact on electrical conductivity

Won Jin Kim, Sung Jin Kim, Jangwon Seo, Y. Sahoo, A. N. Cartwright, Kwang Sup Lee, Paras N. Prasad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report the binding and conductivity characteristics of PbSe nanocrystal quantum dots which have different ligands on the surface. The PbSe nanocrystal quantum dots were surface functionalized using chemical treatment. The results of post-treatment analysis show that the PbSe surface can be successfully functionalized with various ligands based on thiol- and amine-molecules (e.g., oleic acid, dodecanethiol and butylamine). Conductivity measurements performed using a metal-semiconductor-metal structure indicate that there is an increase of conductivity as the length of the ligand connecting the quantum dots is reduced.

Original languageEnglish (US)
Title of host publicationLow-Cost Solution-Based Deposition of Inorganic Films for Electronic/Photonic Devices
PublisherMaterials Research Society
Pages13-18
Number of pages6
ISBN (Print)9781615677597
DOIs
StatePublished - Jan 1 2008
Externally publishedYes
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: Dec 1 2008Dec 5 2008

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1113
ISSN (Print)0272-9172

Other

Other2008 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period12/1/0812/5/08

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Kim, W. J., Kim, S. J., Seo, J., Sahoo, Y., Cartwright, A. N., Lee, K. S., & Prasad, P. N. (2008). Binding characteristics of surface ligands on PbSe QDs and impact on electrical conductivity. In Low-Cost Solution-Based Deposition of Inorganic Films for Electronic/Photonic Devices (pp. 13-18). (Materials Research Society Symposium Proceedings; Vol. 1113). Materials Research Society. https://doi.org/10.1557/proc-1113-f03-09