Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells
Abstract
Controlling the thickness of quantum dot (QD) films is difficult using existing film formation techniques, which employ pre-ligand-exchanged PbS QD inks, because of several issues: 1) poor colloidal stability, 2) use of high-boiling-point solvents for QD dispersion, and 3) limitations associated with one-step deposition. Here in this paper, we suggest a new protocol for QD film deposition using electrical double-layered PbS QD inks, prepared by solution-phase ligand exchange using methyl ammonium lead iodide (MAPbI3). The films are deposited by the supersonic spraying technique, which facilitates the rapid evaporation of the solvent and the subsequent deposition of the PbS QD ink without requiring a post-deposition annealing treatment for solvent removal. The film thickness could be readily controlled by varying the number of spraying sweeps made across the substrate. This spray deposition process yields high-quality n-type QD films quickly (within 1 min) while minimizing the amount of the PbS QD ink used to less than 5 mg for one device (300-nm-thick absorbing layer, 2.5 x 2.5 cm2). Further, the formation of an additional p-layer by treatment with mercaptopropionic acid allows for facile hole extraction from the QD films, resulting in a power conversion efficiency of 3.7% under 1.5 AM illumination.
- Authors:
-
[1]
- Korea Inst. of Machinery and Materials, Daejeon (Korea, Republic of). Nano-Mechanical Systems Research Division; Korea Univ. of Science and Technology (UST) Daejeon (Korea, Republic of)
- Korea Univ., Seoul (Korea, Republic of). School of Mechanical Engineering
- Korea Inst. of Machinery and Materials, Daejeon (Korea, Republic of)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); Korea Institute for Advancement of Technology (KIAT)
- OSTI Identifier:
- 1351938
- Report Number(s):
- NREL/JA-5900-68321
Journal ID: ISSN 2045-2322
- Grant/Contract Number:
- AC36-08GO28308; NRF-2016R1A2B3014182
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; quantum dots; solar cells; deposition
Citation Formats
Choi, Hyekyoung, Lee, Jong-Gun, Mai, Xuan Dung, Beard, Matthew C., Yoon, Sam S., and Jeong, Sohee. Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells. United States: N. p., 2017.
Web. doi:10.1038/s41598-017-00669-9.
Choi, Hyekyoung, Lee, Jong-Gun, Mai, Xuan Dung, Beard, Matthew C., Yoon, Sam S., & Jeong, Sohee. Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells. United States. https://doi.org/10.1038/s41598-017-00669-9
Choi, Hyekyoung, Lee, Jong-Gun, Mai, Xuan Dung, Beard, Matthew C., Yoon, Sam S., and Jeong, Sohee. Tue .
"Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells". United States. https://doi.org/10.1038/s41598-017-00669-9. https://www.osti.gov/servlets/purl/1351938.
@article{osti_1351938,
title = {Supersonically Spray-Coated Colloidal Quantum Dot Ink Solar Cells},
author = {Choi, Hyekyoung and Lee, Jong-Gun and Mai, Xuan Dung and Beard, Matthew C. and Yoon, Sam S. and Jeong, Sohee},
abstractNote = {Controlling the thickness of quantum dot (QD) films is difficult using existing film formation techniques, which employ pre-ligand-exchanged PbS QD inks, because of several issues: 1) poor colloidal stability, 2) use of high-boiling-point solvents for QD dispersion, and 3) limitations associated with one-step deposition. Here in this paper, we suggest a new protocol for QD film deposition using electrical double-layered PbS QD inks, prepared by solution-phase ligand exchange using methyl ammonium lead iodide (MAPbI3). The films are deposited by the supersonic spraying technique, which facilitates the rapid evaporation of the solvent and the subsequent deposition of the PbS QD ink without requiring a post-deposition annealing treatment for solvent removal. The film thickness could be readily controlled by varying the number of spraying sweeps made across the substrate. This spray deposition process yields high-quality n-type QD films quickly (within 1 min) while minimizing the amount of the PbS QD ink used to less than 5 mg for one device (300-nm-thick absorbing layer, 2.5 x 2.5 cm2). Further, the formation of an additional p-layer by treatment with mercaptopropionic acid allows for facile hole extraction from the QD films, resulting in a power conversion efficiency of 3.7% under 1.5 AM illumination.},
doi = {10.1038/s41598-017-00669-9},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {Tue Apr 04 00:00:00 EDT 2017},
month = {Tue Apr 04 00:00:00 EDT 2017}
}
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Photoelectric Properties of Mg2Si, Mg2Ge, and Mg2Sn I. X-Ray Excitation
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Scalable Binder-Free Supersonic Cold Spraying of Nanotextured Cupric Oxide (CuO) Films as Efficient Photocathodes
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Soluble Precursors for CuInSe 2 , CuIn 1– x Ga x Se 2 , and Cu 2 ZnSn(S,Se) 4 Based on Colloidal Nanocrystals and Molecular Metal Chalcogenide Surface Ligands
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Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability
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Ultrastable PbSe Nanocrystal Quantum Dots via in Situ Formation of Atomically Thin Halide Adlayers on PbSe(100)
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Electronic Structure of PbS Colloidal Quantum Dots on Indium Tin Oxide and Titanium Oxide
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One-Step Deposition of Photovoltaic Layers Using Iodide Terminated PbS Quantum Dots
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Colloidal Nanocrystals with Inorganic Halide, Pseudohalide, and Halometallate Ligands
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Solar Cells Based on Inks of n-Type Colloidal Quantum Dots
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Ultrasensitive solution-cast quantum dot photodetectors
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Mid-infrared HgTe colloidal quantum dot photodetectors
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Lead Halide Perovskites and Other Metal Halide Complexes As Inorganic Capping Ligands for Colloidal Nanocrystals
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