Colloidal-quantum-dot photovoltaics using atomic-ligand passivation

Jiang Tang; Kyle W. Kemp; Sjoerd H. Hoogland; Kwangseob Jeong; Huan Liu; Larissa Levina; Melissa Furukawa; Xihua Wang; Ratan K. Debnath; Dong Kyu Cha; Kang Wei Chou; Armin H. Fischer; Aram Amassian; John B. Asbury; E. H. Sargent

doi:10.1038/nmat3118

Colloidal-quantum-dot photovoltaics using atomic-ligand passivation

Jiang Tang, Kyle W. Kemp, Sjoerd H. Hoogland, Kwangseob Jeong, Huan Liu, Larissa Levina, Melissa Furukawa, Xihua Wang, Ratan K. Debnath, Dong Kyu Cha, Kang Wei Chou, Armin H. Fischer, Aram Amassian, John B. Asbury, E. H. Sargent

Research output: Contribution to journal › Article › peer-review

1404 Scopus citations

Abstract

Colloidal-quantum-dot (CQD) optoelectronics offer a compelling combination of solution processing and spectral tunability through quantum size effects. So far, CQD solar cells have relied on the use of organic ligands to passivate the surface of the semiconductor nanoparticles. Although inorganic metal chalcogenide ligands have led to record electronic transport parameters in CQD films, no photovoltaic device has been reported based on such compounds. Here we establish an atomic ligand strategy that makes use of monovalent halide anions to enhance electronic transport and successfully passivate surface defects in PbS CQD films. Both time-resolved infrared spectroscopy and transient device characterization indicate that the scheme leads to a shallower trap state distribution than the best organic ligands. Solar cells fabricated following this strategy show up to 6% solar AM1.5G power-conversion efficiency. The CQD films are deposited at room temperature and under ambient atmosphere, rendering the process amenable to low-cost, roll-by-roll fabrication. © 2011 Macmillan Publishers Limited. All rights reserved.

Original language	English (US)
Pages (from-to)	765-771
Number of pages	7
Journal	Nature Materials
Volume	10
Issue number	10
DOIs	https://doi.org/10.1038/nmat3118
State	Published - Sep 18 2011

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
General Chemistry
Mechanical Engineering
Condensed Matter Physics

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10.1038/nmat3118

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@article{ea1e2fda1543482aac40077085b58a17,

title = "Colloidal-quantum-dot photovoltaics using atomic-ligand passivation",

abstract = "Colloidal-quantum-dot (CQD) optoelectronics offer a compelling combination of solution processing and spectral tunability through quantum size effects. So far, CQD solar cells have relied on the use of organic ligands to passivate the surface of the semiconductor nanoparticles. Although inorganic metal chalcogenide ligands have led to record electronic transport parameters in CQD films, no photovoltaic device has been reported based on such compounds. Here we establish an atomic ligand strategy that makes use of monovalent halide anions to enhance electronic transport and successfully passivate surface defects in PbS CQD films. Both time-resolved infrared spectroscopy and transient device characterization indicate that the scheme leads to a shallower trap state distribution than the best organic ligands. Solar cells fabricated following this strategy show up to 6% solar AM1.5G power-conversion efficiency. The CQD films are deposited at room temperature and under ambient atmosphere, rendering the process amenable to low-cost, roll-by-roll fabrication. {\textcopyright} 2011 Macmillan Publishers Limited. All rights reserved.",

author = "Jiang Tang and Kemp, {Kyle W.} and Hoogland, {Sjoerd H.} and Kwangseob Jeong and Huan Liu and Larissa Levina and Melissa Furukawa and Xihua Wang and Debnath, {Ratan K.} and Cha, {Dong Kyu} and Chou, {Kang Wei} and Fischer, {Armin H.} and Aram Amassian and Asbury, {John B.} and Sargent, {E. H.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-11-009-21 Acknowledgements: This publication is based in part on work supported by Award No. KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST). We thank Angstrom Engineering and Innovative Technologies for useful discussions concerning material deposition methods and control of the glovebox environment, respectively. The authors thank H. Zhong, R. Li, L. Brzozowski, V. Sukhovatkin, A. Barkhouse, I. Kramer, G. Koleilat, E. Palmiano and R. Wolowiec for their help during the course of study. R.D. acknowledges the financial support of e8 scholarship. K.S.J. and J.B.A. gratefully acknowledge partial support from the Petroleum Research Fund (PRF #49639-ND6), the National Science Foundation (CHE 0846241), and the Office of Naval Research (N00014-11-1-0239).",

year = "2011",

month = sep,

day = "18",

doi = "10.1038/nmat3118",

language = "English (US)",

volume = "10",

pages = "765--771",

journal = "Nature Materials",

issn = "1476-1122",

publisher = "Nature Publishing Group",

number = "10",

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TY - JOUR

T1 - Colloidal-quantum-dot photovoltaics using atomic-ligand passivation

AU - Tang, Jiang

AU - Kemp, Kyle W.

AU - Hoogland, Sjoerd H.

AU - Jeong, Kwangseob

AU - Liu, Huan

AU - Levina, Larissa

AU - Furukawa, Melissa

AU - Wang, Xihua

AU - Debnath, Ratan K.

AU - Cha, Dong Kyu

AU - Chou, Kang Wei

AU - Fischer, Armin H.

AU - Amassian, Aram

AU - Asbury, John B.

AU - Sargent, E. H.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-11-009-21 Acknowledgements: This publication is based in part on work supported by Award No. KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST). We thank Angstrom Engineering and Innovative Technologies for useful discussions concerning material deposition methods and control of the glovebox environment, respectively. The authors thank H. Zhong, R. Li, L. Brzozowski, V. Sukhovatkin, A. Barkhouse, I. Kramer, G. Koleilat, E. Palmiano and R. Wolowiec for their help during the course of study. R.D. acknowledges the financial support of e8 scholarship. K.S.J. and J.B.A. gratefully acknowledge partial support from the Petroleum Research Fund (PRF #49639-ND6), the National Science Foundation (CHE 0846241), and the Office of Naval Research (N00014-11-1-0239).

PY - 2011/9/18

Y1 - 2011/9/18

N2 - Colloidal-quantum-dot (CQD) optoelectronics offer a compelling combination of solution processing and spectral tunability through quantum size effects. So far, CQD solar cells have relied on the use of organic ligands to passivate the surface of the semiconductor nanoparticles. Although inorganic metal chalcogenide ligands have led to record electronic transport parameters in CQD films, no photovoltaic device has been reported based on such compounds. Here we establish an atomic ligand strategy that makes use of monovalent halide anions to enhance electronic transport and successfully passivate surface defects in PbS CQD films. Both time-resolved infrared spectroscopy and transient device characterization indicate that the scheme leads to a shallower trap state distribution than the best organic ligands. Solar cells fabricated following this strategy show up to 6% solar AM1.5G power-conversion efficiency. The CQD films are deposited at room temperature and under ambient atmosphere, rendering the process amenable to low-cost, roll-by-roll fabrication. © 2011 Macmillan Publishers Limited. All rights reserved.

AB - Colloidal-quantum-dot (CQD) optoelectronics offer a compelling combination of solution processing and spectral tunability through quantum size effects. So far, CQD solar cells have relied on the use of organic ligands to passivate the surface of the semiconductor nanoparticles. Although inorganic metal chalcogenide ligands have led to record electronic transport parameters in CQD films, no photovoltaic device has been reported based on such compounds. Here we establish an atomic ligand strategy that makes use of monovalent halide anions to enhance electronic transport and successfully passivate surface defects in PbS CQD films. Both time-resolved infrared spectroscopy and transient device characterization indicate that the scheme leads to a shallower trap state distribution than the best organic ligands. Solar cells fabricated following this strategy show up to 6% solar AM1.5G power-conversion efficiency. The CQD films are deposited at room temperature and under ambient atmosphere, rendering the process amenable to low-cost, roll-by-roll fabrication. © 2011 Macmillan Publishers Limited. All rights reserved.

UR - http://hdl.handle.net/10754/561876

UR - http://www.nature.com/articles/nmat3118

UR - http://www.scopus.com/inward/record.url?scp=80053052618&partnerID=8YFLogxK

U2 - 10.1038/nmat3118

DO - 10.1038/nmat3118

M3 - Article

SN - 1476-1122

VL - 10

SP - 765

EP - 771

JO - Nature Materials

JF - Nature Materials

IS - 10

ER -

Colloidal-quantum-dot photovoltaics using atomic-ligand passivation

Abstract

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