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Layer-by-Layer Assembly of Thin Film Zener Diodes from Conducting Polymers and CdSe Nanoparticles
Abstract
Ultrathin films have been prepared by self-assembling trioctylphosphine oxide, TOPO, capped n-type 20−40 Å diameter CdSe nanoparticles and 1,6-hexadecanethiol, HDT, onto p-doped semiconducting polymers, chemically deposited poly(3-methylthiophene), PMeT (for Device A ), and electrochemically deposited poly(pyrrole), Ppy (for Device B ). The semiconducting polymers have, in turn, been electrochemically layered (for Device A ) or layer-by-layer chemically assembled (for Device B ) onto derivatized conducting substrates. The ultrathin films have been characterized by absorption and emission spectroscopy, transmission electron microscopy, scanning force microscopy, X-ray photoelectron spectroscopy, and by electrochemical measurements. By controlling the level of doping into the p-type junction, it was possible to prepare dissymmetrical junctions and observe a rectifying behavior in the forward direction and a Zener breakdown in the reverse direction for Au/PMeT/(HDT/CdSe) 3, Device A, and for Au/MEA/Ppy/(HDT/CdSe) 3, Device B . Additionally, Au/MeA/PAH/CdSe (PAH = poly(allylamine hydrochloride)), Au/MEA/Ppy/PSS/CdSe (PSS = polystyrene sulfonate), and Au/MEA/Ppy/α-ZrP/CdSe (α-ZrP = α zirconium phosphate) films have been prepared and characterized.
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Cited by
Robel, I., Subramanian, V., Kuno, M., & Kamat, P. V. (2006) · Journal of the American Chemical Society · doi:10.1021/ja056494n · Cited by 1,762
Ariga, K., Hill, J. P., & Ji, Q. (2007) · Physical Chemistry Chemical Physics · doi:10.1039/b700410a · Cited by 1,256
Nanomaterials for Neural Interfaces
Kotov, N. A., Winter, J. O., Clements, I. P., Jan, E., Timko, B. P., Campidelli, S., Pathak, S., Mazzatenta, A., Lieber, C. M., Prato, M., et al. (2009) · Advanced Materials · doi:10.1002/adma.200801984 · Cited by 504
One-Pot Synthesis of Ag@TiO2 Core−Shell Nanoparticles and Their Layer-by-Layer Assembly
Pastoriza-Santos, I., Koktysh, D. S., Mamedov, A. A., Giersig, M., Kotov, N. A., & Liz-Marzán, L. M. (2000) · Langmuir · doi:10.1021/la991212g · Cited by 329
Metadata
- Authors
- Cassagneau, T., Mallouk, T. E., & Fendler, J. H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-07-28
- Volume
- 120
- Issue
- 31
- Pages
- 7848-7859
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2141503847
- Cited by
- 274
- References
- 0
- FWCI
- 25.29
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cassagneau, T., Mallouk, T. E., & Fendler, J. H. (1998). Layer-by-Layer Assembly of Thin Film Zener Diodes from Conducting Polymers and CdSe Nanoparticles. Journal of the American Chemical Society. https://doi.org/10.1021/ja9806027
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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