KAUST Grant NumberKUS-11-009-21
Online Publication Date2014-09-22
Print Publication Date2014-10-28
Permanent link to this recordhttp://hdl.handle.net/10754/599653
MetadataShow full item record
Abstract© 2014 American Chemical Society. New inorganic ligands including halide anions have significantly accelerated progress in colloidal quantum dot (CQD) photovoltaics in recent years. All such device reports to date have relied on halide treatment during solid-state ligand exchanges or on co-treatment of long-aliphatic-ligand-capped nanoparticles in the solution phase. Here we report solar cells based on a colloidal quantum dot ink that is capped using halide-based ligands alone. By judicious choice of solvents and ligands, we developed a CQD ink from which a homogeneous and thick colloidal quantum dot solid is applied in a single step. The resultant films display an n-type character, making it suitable as a key component in a solar-converting device. We demonstrate two types of quantum junction devices that exploit these iodide-ligand-based inks. We achieve solar power conversion efficiencies of 6% using this class of colloids.
CitationNing Z, Dong H, Zhang Q, Voznyy O, Sargent EH (2014) Solar Cells Based on Inks of n-Type Colloidal Quantum Dots. ACS Nano 8: 10321–10327. Available: http://dx.doi.org/10.1021/nn503569p.
SponsorsThis publication is based in part on work supported by Award KUS-11-009-21, from King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund - Research Excellence Program, and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. H.D. would like to acknowledge a scholarship from the China Scholarship Council (CSC). Computations were performed on the GPC supercomputer at the SciNet HPC Consortium. SciNet is funded by the Canada Foundation for Innovation under the auspices of Compute Canada; the Government of Ontario; Ontario Research Fund - Research Excellence; and the University of Toronto. We thank Angstrom Engineering, Inc. and Innovative Technology, Inc. for useful discussions regarding material deposition methods and control of the glovebox environment, respectively. The authors thank L. Levine for CQD synthesis, L. Rollny for the zeta potential measurements, F. Fan for TEM measurements, J. McDowell for the XRD measurements, H. F. Movahed for SCAPS simulations, and E. Palmiano, R. Wolowiec, and D. Kopilovic for their help during the course of these studies.
PublisherAmerican Chemical Society (ACS)
CollectionsPublications Acknowledging KAUST Support
- Depleted-heterojunction colloidal quantum dot solar cells.
- Authors: Pattantyus-Abraham AG, Kramer IJ, Barkhouse AR, Wang X, Konstantatos G, Debnath R, Levina L, Raabe I, Nazeeruddin MK, Grätzel M, Sargent EH
- Issue date: 2010 Jun 22
- Hybrid passivated colloidal quantum dot solids.
- Authors: Ip AH, Thon SM, Hoogland S, Voznyy O, Zhitomirsky D, Debnath R, Levina L, Rollny LR, Carey GH, Fischer A, Kemp KW, Kramer IJ, Ning Z, Labelle AJ, Chou KW, Amassian A, Sargent EH
- Issue date: 2012 Sep
- Colloidal-quantum-dot photovoltaics using atomic-ligand passivation.
- Authors: Tang J, Kemp KW, Hoogland S, Jeong KS, Liu H, Levina L, Furukawa M, Wang X, Debnath R, Cha D, Chou KW, Fischer A, Amassian A, Asbury JB, Sargent EH
- Issue date: 2011 Oct
- Halide Re-Shelled Quantum Dot Inks for Infrared Photovoltaics.
- Authors: Fan JZ, Liu M, Voznyy O, Sun B, Levina L, Quintero-Bermudez R, Liu M, Ouellette O, García de Arquer FP, Hoogland S, Sargent EH
- Issue date: 2017 Nov 1
- Orthogonal colloidal quantum dot inks enable efficient multilayer optoelectronic devices.
- Authors: Lee S, Choi MJ, Sharma G, Biondi M, Chen B, Baek SW, Najarian AM, Vafaie M, Wicks J, Sagar LK, Hoogland S, de Arquer FPG, Voznyy O, Sargent EH
- Issue date: 2020 Sep 23