Abstract
Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum-confined composite material with unique characteristics. The synthesis of a-Si:H QDs is demonstrated with an atmospheric-pressure plasma process, which allows for accurate control of a highly chemically reactive non-equilibrium environment with temperatures well below the crystallization temperature of Si QDs.
| Original language | English |
|---|---|
| Pages (from-to) | 8011-8016 |
| Number of pages | 6 |
| Journal | Advanced Materials |
| Volume | 27 |
| Issue number | 48 |
| Early online date | 2 Nov 2015 |
| DOIs | |
| Publication status | Published - 22 Dec 2015 |
Funding
This work was supported by the Leverhulme Trust (International Network IN-2012-136) and EPSRC (EP/K022237/1). S.A. thanks the financial support of the University of Ulster Vice-Chancellor Studentship.
Keywords
- amorphous silicon
- hydrogen alloying
- photoluminescence
- quantum dots
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