Impact of Different Surface Ligands on the Optical Properties of PbS Quantum Dot Solids
| Author(s) | Xu, Fan | |
| Author(s) | Gerlein, Luis Felipe | |
| Author(s) | Ma, Xin | |
| Author(s) | Haughn, Chelsea R. | |
| Author(s) | Doty, Matthew F. | |
| Author(s) | Cloutier, Sylvain G. | |
| Ordered Author | Fan Xu, Luis Felipe Gerlein, Xin Ma, Chelsea R. Haughn, Matthew F. Doty and Sylvain G. Cloutier | |
| UD Author | Xu, Fan | en_US |
| UD Author | Ma, Xin | en_US |
| UD Author | Doty, Matthew F. | en_US |
| UD Author | Cloutier, Sylvain G. | en_US |
| Date Accessioned | 2016-06-28T14:46:42Z | |
| Date Available | 2016-06-28T14:46:42Z | |
| Copyright Date | Copyright © | en_US |
| Publication Date | 2015-04-21 | |
| Description | Publisher's PDF | en_US |
| Abstract | The engineering of quantum dot solids with low defect concentrations and efficient carrier transport through a ligand strategy is crucial to achieve efficient quantum dot (QD) optoelectronic devices. Here, we study the consequences of various surface ligand treatments on the light emission properties of PbS quantum dot films using 1,3-benzenedithiol (1,3-BDT), 1,2-ethanedithiol (EDT), mercaptocarboxylic acids (MPA) and ammonium sulfide ((NH4)2S). We first investigate the influence of different ligand treatments on the inter-dot separation, which mainly determines the conductivity of the QD films. Then, through a combination of photoluminescence and transient photoluminescence characterization, we demonstrate that the radiative and non-radiative recombination mechanisms in the quantum dot films depend critically on the length and chemical structure of the surface ligands. | en_US |
| Department | University of Delaware. Department of Electrical and Computer Engineering. | en_US |
| Department | University of Delaware. Department of Materials Science and Engineering. | en_US |
| Citation | Xu, Fan, et al. "Impact of Different Surface Ligands on the Optical Properties of PbS Quantum Dot Solids." Materials 8.4 (2015): 1858-1870. | en_US |
| DOI | 10.3390/ma8041858 | en_US |
| ISSN | 1996-1944 | en_US |
| URL | http://udspace.udel.edu/handle/19716/17992 | |
| Language | en_US | en_US |
| Publisher | MDPI (Multidisciplinary Digital Publishing Institute) | en_US |
| dc.rights | CC BY 4.0 | en_US |
| dc.source | Materials | en_US |
| dc.source.uri | http://www.mdpi.com/journal/materials | en_US |
| Title | Impact of Different Surface Ligands on the Optical Properties of PbS Quantum Dot Solids | en_US |
| Type | Article | en_US |
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