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Perovskite/Colloida...
Perovskite/Colloidal Quantum Dot Tandem Solar Cells: Theoretical Modeling and Monolithic Structure
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- Karani, Arfa (author)
- Univ Cambridge, England
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- Yang, Le (author)
- Univ Cambridge, England; ASTAR, Singapore
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- Bai, Sai (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Univ Oxford, England
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- Futscher, Moritz H. (author)
- AMOLF, Netherlands
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- Snaith, Henry J. (author)
- Univ Oxford, England
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- Ehrler, Bruno (author)
- AMOLF, Netherlands
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- Greenham, Neil C. (author)
- Univ Cambridge, England
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- Di, Dawei (author)
- Univ Cambridge, England
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(creator_code:org_t)
- 2018-03-13
- 2018
- English.
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In: ACS Energy Letters. - : AMER CHEMICAL SOC. - 2380-8195. ; 3:4, s. 869-874
- Related links:
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https://pubs.acs.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Metal-halide perovskite-based tandem solar cells show great promise for overcoming the Shockley-Queisser single-junction efficiency limit via low-cost tandem structures, but so far, they employ conventional bottom-cell materials that require stringent processing conditions. Meanwhile, difficulty in achieving low-bandgap (amp;lt;1.1 eV) perovskites limits all-perovskite tandem cell development. Here we propose a tandem cell design based on a halide perovskite top cell and a chalcogenide colloidal quantum dot (CQD) bottom cell, where both materials provide bandgap tunability and solution processability. A theoretical efficiency of 43% is calculated for tandem-cell bandgap combinations of 1.55 (perovskite) and 1.0 eV (CQDs) under 1-sun illumination. We highlight that intersubcell radiative coupling contributes significantly (amp;gt;11% absolute gain) to the ultimate efficiency via photon recycling. We report an initial experimental demonstration of a solution-processed monolithic perovskite/CQD tandem solar cell, showing evidence for subcell voltage addition. We model that a power conversion efficiency of 29.7% is possible by combining state-of-the-art perovskite and CQD solar cells.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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