APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Applied Physics Letters / Volume 85 / Issue 11 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 85, 2089 (2004); doi:10.1063/1.1792380 (3 pages)

Photoconductivity from PbS-nanocrystal∕semiconducting polymer composites for solution-processible, quantum-size tunable infrared photodetectors

S. A. McDonald, P. W. Cyr, L. Levina, and E. H. Sargent

Department of Electrical & Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, M5S 3G4, Canada

(Received 21 April 2004; accepted 13 July 2004)

We report photoconductivity at infrared wavelengths, 975–1300 nm, from a polymer∕nanocrystal quantum dot composite. Biased films of the conjugated polymer poly[2-methoxy-5-(2′-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV) sensitized with PbS nanocrystals (∼5 nm diameter) demonstrate photocurrent at wavelengths beyond the response of the polymer and corresponding to the absorption of the nanocrystals. The photocurrent is attributed to absorption in the nanocrystals with subsequent hole transfer to the polymer and had an internal quantum efficiency of ∼5×10−6 to ∼10−5 charges∕photon at 5 V bias.

© 2004 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

lead compounds, IV-VI semiconductors, filled polymers, polymer blends, polymer films, nanocomposites, organic semiconductors, semiconductor quantum dots, photoconductivity, infrared spectra, ultraviolet spectra, visible spectra

PACS

ARTICLE DATA

Permalink
http://link.aip.org/link/doi/10.1063/1.1792380

PUBLICATION DATA

ISSN:

0003-6951 (print)  
1077-3118 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    L. Bakueva, S. Musikhin, M. A. Hines, T.-W. F. Chang, M. Tzolov, G. D. Scholes, and E. H. Sargent, Appl. Phys. Lett. 82, 2895 (2003)APPLAB000082000017002895000001.

    H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, Appl. Phys. Lett. 80, 4614 (2002)APPLAB000080000024004614000001.

    A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, Appl. Phys. Lett. 81, 1303 (2002)APPLAB000081000007001303000001.

    V. L. Colvin, K. L. Cunningham, and A. P. Alivisatos, J. Chem. Phys. 101, 7122 (1994)JCPSA6000101000008007122000001.

    N. C. Greenham, X. Peng, and A. P. Alivisatos, Phys. Rev. B 54, 17628 (1996).

    D. S. Ginger and N. C. Greenham, Phys. Rev. B 59, 10622 (1999).

    D. S. Ginger and N. C. Greenham, J. Appl. Phys. 87, 1361 (2000)JAPIAU000087000003001361000001.

    C. A. Leatherdale, C. R. Kagan, N. Y. Morgan, S. A. Empedocles, M. A. Kastner, and M. G. Bawendi, Phys. Rev. B 62, 2669 (2000).

    N. Y. Morgan, C. A. Leatherdale, M. Drndic, M. V. Jarosz, M. A. Kastner, and M. G. Bawendi, Phys. Rev. B 66, 075339 (2002).

    P. Hoyer and R. Konenkamp, Appl. Phys. Lett. 66, 349 (1995)APPLAB000066000003000349000001.


For access to citing articles, you need to log in.



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Photoconductivity from PbS-nanocrystal∕semiconducting polymer composites for solution-processible, quantum-size tunable infrared photodetectors
  2. Efficient black silicon solar cell with a density-graded nanoporous surface: Optical properties, performance limitations, and design rules
  3. In-plane and out-of-plane band-gap properties of a two-dimensional triangular polymer-based void channel photonic crystal
  4. A generic approach to nanocables via nanochannel-confined sequential electrodeposition
  5. Light-emitting transistor: Light emission from InGaP/GaAs heterojunction bipolar transistors
Go to AIP Home
Copyright © American Institute of Physics
close