Environmentally friendly nitrogen-doped carbon quantum dots for next generation solar cells
Carolan, Darragh and Rocks, Conor and Padmanaban, Dilli Babu and Maguire, Paul and Svrcek, Vladimir and Mariotti, Davide (2017) Environmentally friendly nitrogen-doped carbon quantum dots for next generation solar cells. Sustainable Energy and Fuels, 1 (7). pp. 1611-1619. (https://doi.org/10.1039/c7se00158d)
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Abstract
Shine on you crazy carbon! In this work, nitrogen-doped carbon quantum dots (N-CQDs) are synthesized using a simple custom atmospheric pressure microplasma. The method is facile, rapid, and environmentally friendly and the N-CQDs can be produced in a few minutes with no need for high temperature, complicated chemical techniques, or surface ligands. The N-CQDs are formed using molecular precursors and can be produced in different solvent mixtures. Material characterization techniques show a high degree of nitrogen doping on the QD surface with the amount of nitrogen depending on initial reaction conditions. The NCQDs show interesting quantum confined optical properties that depend on the amount of nitrogen incorporation. Importantly, the band energy structure of the N-CQDs is elucidated and they are incorporated into a photovoltaic device as the photoactive layer achieving an extraordinary open-circuit voltage of 1.8 V and a power conversion efficiency of 0.8% (champion device), amongst the highest reported to date for group IV and carbon based quantum dots.
ORCID iDs
Carolan, Darragh, Rocks, Conor, Padmanaban, Dilli Babu, Maguire, Paul, Svrcek, Vladimir and Mariotti, Davide ORCID: https://orcid.org/0000-0003-1504-4383;-
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Item type: Article ID code: 90286 Dates: DateEvent1 September 2017Published9 August 2017Published Online5 July 2017AcceptedSubjects: Technology > Chemical technology Department: Faculty of Engineering > Design, Manufacture and Engineering Management Depositing user: Pure Administrator Date deposited: 19 Aug 2024 10:59 Last modified: 24 Sep 2024 22:59 URI: https://strathprints.strath.ac.uk/id/eprint/90286