Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells

Erin M. Sanehira; Ashley R. Marshall; Jeffrey A. Christians; Steven P. Harvey; Peter N. Ciesielski; Lance M. Wheeler; Philip Schulz; Lih Y. Lin; Matthew C. Beard; Joseph M. Luther

doi:10.1126/sciadv.aao4204

Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells

Erin M. Sanehira
, Ashley R. Marshall
, Jeffrey A. Christians
, Steven P. Harvey
, Peter N. Ciesielski
, Lance M. Wheeler
, Philip Schulz
, Lih Y. Lin
, Matthew C. Beard
, Joseph M. Luther

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

895 Scopus Citations

Abstract

We developed lead halide perovskite quantum dot (QD) films with tuned surface chemistry based on A-site cation halide salt (AX) treatments. QD perovskites offer colloidal synthesis and processing using industrially friendly solvents, which decouples grain growth from film deposition, and at present produce larger open-circuit voltages (V_OC’s) than thin-film perovskites. CsPbI₃ QDs, with a tunable bandgap between 1.75 and 2.13 eV, are an ideal top cell candidate for all-perovskite multijunction solar cells because of their demonstrated small V_OC deficit. We show that charge carrier mobility within perovskite QD films is dictated by the chemical conditions at the QD-QD junctions. The AX treatments provide a method for tuning the coupling between perovskite QDs, which is exploited for improved charge transport for fabricating high-quality QD films and devices. The AX treatments presented here double the film mobility, enabling increased photocurrent, and lead to a record certified QD solar cell efficiency of 13.43%.

Original language	American English
Article number	eaao4204
Number of pages	8
Journal	Science Advances
Volume	3
Issue number	10
DOIs	https://doi.org/10.1126/sciadv.aao4204 https://doi.org/10.1126/sciadv.aao4204
State	Published - 2017

Bibliographical note

Publisher Copyright:
Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science.

NLR Publication Number

NREL/JA-5K00-68723

Keywords

perovskites
quantum dots
surface chemistry

Access to Document

https://www.nrel.gov/docs/fy18osti/68723.pdf

Cite this

Sanehira, E. M., Marshall, A. R., Christians, J. A., Harvey, S. P., Ciesielski, P. N., Wheeler, L. M., Schulz, P., Lin, L. Y., Beard, M. C., & Luther, J. M. (2017). Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells. Science Advances, 3(10), Article eaao4204. https://doi.org/10.1126/sciadv.aao4204, https://doi.org/10.1126/sciadv.aao4204

@article{2b78bbbf991043dca5724fcbce201a6e,

title = "Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells",

abstract = "We developed lead halide perovskite quantum dot (QD) films with tuned surface chemistry based on A-site cation halide salt (AX) treatments. QD perovskites offer colloidal synthesis and processing using industrially friendly solvents, which decouples grain growth from film deposition, and at present produce larger open-circuit voltages (VOC{\textquoteright}s) than thin-film perovskites. CsPbI3 QDs, with a tunable bandgap between 1.75 and 2.13 eV, are an ideal top cell candidate for all-perovskite multijunction solar cells because of their demonstrated small VOC deficit. We show that charge carrier mobility within perovskite QD films is dictated by the chemical conditions at the QD-QD junctions. The AX treatments provide a method for tuning the coupling between perovskite QDs, which is exploited for improved charge transport for fabricating high-quality QD films and devices. The AX treatments presented here double the film mobility, enabling increased photocurrent, and lead to a record certified QD solar cell efficiency of 13.43\%.",

keywords = "perovskites, quantum dots, surface chemistry",

author = "Sanehira, \{Erin M.\} and Marshall, \{Ashley R.\} and Christians, \{Jeffrey A.\} and Harvey, \{Steven P.\} and Ciesielski, \{Peter N.\} and Wheeler, \{Lance M.\} and Philip Schulz and Lin, \{Lih Y.\} and Beard, \{Matthew C.\} and Luther, \{Joseph M.\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science.",

year = "2017",

doi = "10.1126/sciadv.aao4204",

language = "American English",

volume = "3",

journal = "Science Advances",

issn = "2375-2548",

publisher = "American Association for the Advancement of Science",

number = "10",

}

TY - JOUR

T1 - Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells

AU - Sanehira, Erin M.

AU - Marshall, Ashley R.

AU - Christians, Jeffrey A.

AU - Harvey, Steven P.

AU - Ciesielski, Peter N.

AU - Wheeler, Lance M.

AU - Schulz, Philip

AU - Lin, Lih Y.

AU - Beard, Matthew C.

AU - Luther, Joseph M.

PY - 2017

Y1 - 2017

N2 - We developed lead halide perovskite quantum dot (QD) films with tuned surface chemistry based on A-site cation halide salt (AX) treatments. QD perovskites offer colloidal synthesis and processing using industrially friendly solvents, which decouples grain growth from film deposition, and at present produce larger open-circuit voltages (VOC’s) than thin-film perovskites. CsPbI3 QDs, with a tunable bandgap between 1.75 and 2.13 eV, are an ideal top cell candidate for all-perovskite multijunction solar cells because of their demonstrated small VOC deficit. We show that charge carrier mobility within perovskite QD films is dictated by the chemical conditions at the QD-QD junctions. The AX treatments provide a method for tuning the coupling between perovskite QDs, which is exploited for improved charge transport for fabricating high-quality QD films and devices. The AX treatments presented here double the film mobility, enabling increased photocurrent, and lead to a record certified QD solar cell efficiency of 13.43%.

AB - We developed lead halide perovskite quantum dot (QD) films with tuned surface chemistry based on A-site cation halide salt (AX) treatments. QD perovskites offer colloidal synthesis and processing using industrially friendly solvents, which decouples grain growth from film deposition, and at present produce larger open-circuit voltages (VOC’s) than thin-film perovskites. CsPbI3 QDs, with a tunable bandgap between 1.75 and 2.13 eV, are an ideal top cell candidate for all-perovskite multijunction solar cells because of their demonstrated small VOC deficit. We show that charge carrier mobility within perovskite QD films is dictated by the chemical conditions at the QD-QD junctions. The AX treatments provide a method for tuning the coupling between perovskite QDs, which is exploited for improved charge transport for fabricating high-quality QD films and devices. The AX treatments presented here double the film mobility, enabling increased photocurrent, and lead to a record certified QD solar cell efficiency of 13.43%.

KW - perovskites

KW - quantum dots

KW - surface chemistry

UR - https://www.scopus.com/pages/publications/85034755312

U2 - 10.1126/sciadv.aao4204

DO - 10.1126/sciadv.aao4204

M3 - Article

C2 - 29098184

AN - SCOPUS:85034755312

SN - 2375-2548

VL - 3

JO - Science Advances

JF - Science Advances

IS - 10

M1 - eaao4204

ER -

Enhanced Mobility CsPbI3 Quantum Dot Arrays for Record-Efficiency, High-Voltage Photovoltaic Cells

Abstract

Bibliographical note

NLR Publication Number

Keywords

Access to Document

Other files and links

Fingerprint

Cite this