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Highly monodispersed PbS quantum dots for outstanding cascaded-junction solar cells

Hou, Bo, Cho, Yuljae, Kim, Byung Sung, Hong, John, Park, Jong Bae, Ahn, Se Jin, Sohn, Jung Inn, Cha, SeungNam and Kim, Jong Min 2016. Highly monodispersed PbS quantum dots for outstanding cascaded-junction solar cells. ACS Energy Letters 1 (4) , pp. 834-839. 10.1021/acsenergylett.6b00294

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Abstract

High-performance cascaded-junction quantum dot solar cells (CJQDSCs) are fabricated from as-prepared highly monodispersed lead sulfide QDs. The cells have a high power conversion of 9.05% and a short-circuit current density of 32.51 mA cm–2. A reliable and effective stratagem for fabricating high-quality lead sulfide quantum dots (QD) is explored through a “monomer” concentration-controlled experiment. Robust QDSC performances with different band gaps are demonstrated from the as-proposed synthesis and processing stratagems. Various potential CJQDSCs can be envisioned from the band edge evolution of the QDs as a function of size and ligands reported here.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Additional Information: This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
Publisher: American Chemical Society
ISSN: 2380-8195
Date of First Compliant Deposit: 4 February 2020
Date of Acceptance: 25 September 2016
Last Modified: 18 Feb 2020 15:34
URI: http://orca.cf.ac.uk/id/eprint/129325

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