Theoretical and experimental insights into the surface chemistry of semiconductor quantum dots
| Autor: | Andrés Ruland, Vito Sgobba, Johannes T. Margraf, Dirk M. Guldi, Timothy Clark |
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| Rok vydání: | 2013 |
| Předmět: |
Infrared
business.industry Spectrophotometry Atomic Astrophysics::Cosmology and Extragalactic Astrophysics Surfaces and Interfaces Condensed Matter Physics Atomic units Cadmium sulfide chemistry.chemical_compound Semiconductor chemistry Semiconductors Quantum Dots Electrochemistry Physical chemistry General Materials Science Molecular orbital Density functional theory Astrophysics::Earth and Planetary Astrophysics Emission spectrum business Quantum Spectroscopy |
| Zdroj: | Langmuir : the ACS journal of surfaces and colloids. 29(49) |
| ISSN: | 1520-5827 |
| Popis: | We present a series of non-stoichiometric cadmium sulfide quantum-dot (QD) models. Using density functional theory (DFT) and semi-empirical molecular orbital (MO) calculations, we explore the ligand binding and exchange chemistry of these models. Their surface morphology allows for these processes to be rationalized on the atomic scale. This is corroborated by ultraviolet–visible (UV–vis), infrared (IR), and inductively coupled plasma–optical emission spectroscopy (ICP–OES). |
| Databáze: | OpenAIRE |
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