title: SnS4(4-), SbS4(3-), and AsS3(3-) Metal Chalcogenide Surface Ligands: Couplings to Quantum Dots, Electron Transfers, and All-Inorganic Multilayered Quantum Dot Sensitized Solar Cells.
abstract: Three inorganic capping ligands (ICLs) for quantum dots (QDs), SnS4(4-), SbS4(3-) and AsS3(3-), were synthesized and the energy levels determined. Proximity between the ICL LUMO and QD conduction level governed the electronic couplings such as absorption shift upon ligand exchange, and electron transfer rate to TiO2. QD-sensitized solar cells were fabricated, using the ICL-QDs and also using QD multilayers layer-by-layer assembled by bridging coordinations, and studied as a function of the ICL ligand and the number of QD layers.
authors.affiliation: Department of Chemistry, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Ho
authors.initials: H
authors.lastname: Jin
authors.affiliation: Department of Chemistry, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Sukyung
authors.initials: S
authors.lastname: Choi
authors.affiliation: Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371.|Energy Research Institute @NTU (ERI@N), Research Techno Plaza , X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553.|Singapore-Berkeley Research Initiative for Sustainable Energy , 1 Create Way, Singapore 138602.
authors.forename: Guichuan
authors.initials: G
authors.lastname: Xing
authors.affiliation: Department of Material Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Chemistry, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Yongju
authors.initials: Y
authors.lastname: Kwon
authors.affiliation: Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371.
authors.forename: Wee Kiang
authors.initials: WK
authors.lastname: Chong
authors.affiliation: Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371.|Energy Research Institute @NTU (ERI@N), Research Techno Plaza , X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553.|Singapore-Berkeley Research Initiative for Sustainable Energy , 1 Create Way, Singapore 138602.
authors.forename: Tze Chien
authors.initials: TC
authors.lastname: Sum
authors.affiliation: Department of Material Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Hyun Myung
authors.initials: HM
authors.lastname: Jang
authors.affiliation: Department of Chemistry, Pohang University of Science and Technology , Pohang 790-784, South Korea.
authors.forename: Sungjee
authors.initials: S
authors.lastname: Kim