Exploration of Metal Chloride Uptake for Improved Performance Characteristics of PbSe Quantum Dot Solar Cells

Ashley R. Marshall; Matthew R. Young; Arthur J. Nozik; Matthew C. Beard; Joseph M. Luther

doi:10.1021/acs.jpclett.5b01214

Exploration of Metal Chloride Uptake for Improved Performance Characteristics of PbSe Quantum Dot Solar Cells

Ashley R. Marshall, Matthew R. Young, Arthur J. Nozik, Matthew C. Beard, Joseph M. Luther

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

45 Scopus Citations

Abstract

We explored the uptake of metal chloride salts with +1 to +3 metals of Na⁺, K⁺, Zn²⁺, Cd²⁺, Sn²⁺, Cu²⁺, and In³⁺ by PbSe QD solar cells. We also compared CdCl₂ to Cd acetate and Cd nitrate treatments. PbSe QD solar cells fabricated with a CdCl₂ treatment are stable for more than 270 days stored in air. We studied how temperature and immersion times affect optoelectronic properties and photovoltaic cell performance. Uptake of Cd²⁺ and Zn²⁺ increase open circuit voltage, whereas In³⁺ and K⁺ increase the photocurrent without influencing the spectral response or first exciton peak position. Using the most beneficial treatments we varied the bandgap of PbSe QD solar cells from 0.78 to 1.3 eV and find the improved V_OC is more prevalent for lower bandgap QD solar cells.

Original language	American English
Pages (from-to)	2892-2899
Number of pages	8
Journal	Journal of Physical Chemistry Letters
Volume	6
Issue number	15
DOIs	https://doi.org/10.1021/acs.jpclett.5b01214 https://doi.org/10.1021/acs.jpclett.5b01214
State	Published - 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

NREL Publication Number

NREL/JA-5900-64476

Keywords

lead selenide
PbS
quantum dots (QD)
solar cells
surface passivation
VOC deficit

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title = "Exploration of Metal Chloride Uptake for Improved Performance Characteristics of PbSe Quantum Dot Solar Cells",

abstract = "We explored the uptake of metal chloride salts with +1 to +3 metals of Na+, K+, Zn2+, Cd2+, Sn2+, Cu2+, and In3+ by PbSe QD solar cells. We also compared CdCl2 to Cd acetate and Cd nitrate treatments. PbSe QD solar cells fabricated with a CdCl2 treatment are stable for more than 270 days stored in air. We studied how temperature and immersion times affect optoelectronic properties and photovoltaic cell performance. Uptake of Cd2+ and Zn2+ increase open circuit voltage, whereas In3+ and K+ increase the photocurrent without influencing the spectral response or first exciton peak position. Using the most beneficial treatments we varied the bandgap of PbSe QD solar cells from 0.78 to 1.3 eV and find the improved VOC is more prevalent for lower bandgap QD solar cells.",

keywords = "lead selenide, PbS, quantum dots (QD), solar cells, surface passivation, VOC deficit",

author = "Marshall, {Ashley R.} and Young, {Matthew R.} and Nozik, {Arthur J.} and Beard, {Matthew C.} and Luther, {Joseph M.}",

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doi = "10.1021/acs.jpclett.5b01214",

language = "American English",

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AU - Marshall, Ashley R.

AU - Young, Matthew R.

AU - Nozik, Arthur J.

AU - Beard, Matthew C.

AU - Luther, Joseph M.

PY - 2015

Y1 - 2015

N2 - We explored the uptake of metal chloride salts with +1 to +3 metals of Na+, K+, Zn2+, Cd2+, Sn2+, Cu2+, and In3+ by PbSe QD solar cells. We also compared CdCl2 to Cd acetate and Cd nitrate treatments. PbSe QD solar cells fabricated with a CdCl2 treatment are stable for more than 270 days stored in air. We studied how temperature and immersion times affect optoelectronic properties and photovoltaic cell performance. Uptake of Cd2+ and Zn2+ increase open circuit voltage, whereas In3+ and K+ increase the photocurrent without influencing the spectral response or first exciton peak position. Using the most beneficial treatments we varied the bandgap of PbSe QD solar cells from 0.78 to 1.3 eV and find the improved VOC is more prevalent for lower bandgap QD solar cells.

AB - We explored the uptake of metal chloride salts with +1 to +3 metals of Na+, K+, Zn2+, Cd2+, Sn2+, Cu2+, and In3+ by PbSe QD solar cells. We also compared CdCl2 to Cd acetate and Cd nitrate treatments. PbSe QD solar cells fabricated with a CdCl2 treatment are stable for more than 270 days stored in air. We studied how temperature and immersion times affect optoelectronic properties and photovoltaic cell performance. Uptake of Cd2+ and Zn2+ increase open circuit voltage, whereas In3+ and K+ increase the photocurrent without influencing the spectral response or first exciton peak position. Using the most beneficial treatments we varied the bandgap of PbSe QD solar cells from 0.78 to 1.3 eV and find the improved VOC is more prevalent for lower bandgap QD solar cells.

KW - lead selenide

KW - PbS

KW - quantum dots (QD)

KW - solar cells

KW - surface passivation

KW - VOC deficit

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U2 - 10.1021/acs.jpclett.5b01214

DO - 10.1021/acs.jpclett.5b01214

M3 - Article

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SN - 1948-7185

VL - 6

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EP - 2899

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 15

ER -

Exploration of Metal Chloride Uptake for Improved Performance Characteristics of PbSe Quantum Dot Solar Cells

Abstract

Bibliographical note

NREL Publication Number

Keywords

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