title: 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.
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: Bo
authors.initials: B
authors.lastname: Hou
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: Yuljae
authors.initials: Y
authors.lastname: Cho
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: Byung Sung
authors.initials: BS
authors.lastname: Kim
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: John
authors.initials: J
authors.lastname: Hong
authors.affiliation: Jeonju Centre, Korea Basic Science Institute , Jeonju, Jeollabuk-do 54907, Republic of Korea.
authors.forename: Jong Bae
authors.initials: JB
authors.lastname: Park
authors.affiliation: New and Renewable Energy Research Division, Photovoltaic Laboratory, Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea.
authors.forename: Se Jin
authors.initials: SJ
authors.lastname: Ahn
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: Jung Inn
authors.initials: JI
authors.lastname: Sohn
authors.affiliation: Department of Engineering Science, University of Oxford , Parks Road, Oxford OX1 3PJ, U.K.
authors.forename: SeungNam
authors.initials: S
authors.lastname: Cha
authors.affiliation: Department of Engineering, University of Cambridge , 9 JJ Thomson Avenue, Cambridge CB3 0FA, U.K.
authors.forename: Jong Min
authors.initials: JM
authors.lastname: Kim