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Highly Monodispersed PbS Quantum Dots for Outstanding Cascaded-Junction Solar Cells.

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.

SUBMITTER: Hou B

PROVIDER: S-EPMC5180466 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Highly Monodispersed PbS Quantum Dots for Outstanding Cascaded-Junction Solar Cells.

Hou Bo B Cho Yuljae Y Kim Byung Sung BS Hong John J Park Jong Bae JB Ahn Se Jin SJ Sohn Jung Inn JI Cha SeungNam S Kim Jong Min JM

ACS energy letters 20160928 4

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-prop ...[more]

PMID: 28035335

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