The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
White-Light Emission of Amine-Functionalized Organic/Inorganic Hybrids: Emitting Centers and Recombination Mechanisms
Abstract
This work discusses the recombination mechanisms and the chemical nature of the emitting centers subjacent to the white-light emission of sol−gel derived amine-functionalized hybrids lacking metal activator ions, such as those based on 3-aminopropyl)triethoxysilane (APTES), 3-glycidyloxypropyltrimethoxysilane (GPTES), and on urea and urethane precursors. The white-light photoluminescence (PL) results from a convolution of the emission originated in the NH (NH 2 ) groups of the urea or urethane bridges (APTES- and GPTES-based hybrids) with electron−hole recombinations occurring in the siloxane nanoclusters. These two components reveal a radiative recombination mechanism typical of donor−acceptor pairs, mediated by some localized centers. Photoinduced proton-transfer between defects such as NH 3 + and NH - (GPTES- and APTES-based hybrids) or NH 2 + and N - (di-ureasils and di-urethanesils) is proposed as the mechanism responsible for the NH-related component. Electron paramagnetic resonance data suggest that the specific PL mechanism subjacent to the component associated with the siliceous nanodomains involves oxygen-related defects.
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Citations
Cites
Hybrid organic–inorganic materials: a land of multidisciplinarity
Judeinstein, P., & Sanchez, C. (1996) · J. Mater. Chem. · doi:10.1039/jm9960600511 · Cited by 1,168
Cited by
Mao, L., Wu, Y., Stoumpos, C. C., Traore, B., Katan, C., Even, J., Wasielewski, M. R., & Kanatzidis, M. G. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b06143 · Cited by 431
Defect-related luminescent materials: synthesis, emission properties and applications
Zhang, C., & Lin, J. (2012) · Chemical Society Reviews · doi:10.1039/c2cs35215j · Cited by 339
Escribano, P., Julián-López, B., Planelles-Aragó, J., Cordoncillo, E., Viana, B., & Sanchez, C. (2008) · J. Mater. Chem. · doi:10.1039/b710800a · Cited by 287
Metadata
- Authors
- Carlos, L. D., Sá Ferreira, R. A., Pereira, R. N., Assunção, M., & de Zea Bermudez, V.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-09-01
- Volume
- 108
- Issue
- 39
- Pages
- 14924-14932
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W1971316651
- Cited by
- 233
- References
- 1
- FWCI
- 11.46
- Type
- journal article
- Language
- en
- Open access
- closed
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