High performance solid-state PbS/CuS hetero-nanostructured quantum dots-sensitized solar cells

O. Hoon Kwon; Jin Hyuck Heo; Soowung Park; Sang Wook Kim; Sang Hyuk Im

doi:10.1016/j.jiec.2019.03.019

High performance solid-state PbS/CuS hetero-nanostructured quantum dots-sensitized solar cells

O. Hoon Kwon, Jin Hyuck Heo, Soowung Park, Sang Wook Kim, Sang Hyuk Im

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

11 Citations (Scopus)

Abstract

PbS/CuS hetero-nanostructured (HNS) quantum dots(QDs) with finely controlled PbS core-size (˜3, ˜5, and ˜7 nm) and CuS content (4, 7, 11, 14, 17, and 45 mol%) were successfully synthesized via the suppressed cationic exchange reaction rate by reducing the reaction temperature down to −3 °C. By the precise synthesis of the PbS/CuS HNS QDs, we found that the PbS/CuS HNS QDs with ˜3 nm in core-size and 14 mol% CuS have the most effective charge separation/injection from the HNS QDs to the mesoscopic TiO ₂ electron conductor, thereby the sensitized solar cells exhibited high power conversion efficiency of 9.3%.

Original language	English
Pages (from-to)	164-170
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	75
DOIs	https://doi.org/10.1016/j.jiec.2019.03.019
Publication status	Published - 2019 Jul 25

Bibliographical note

Funding Information:
O.-H. Kwon and J.H Heo have equally contributed to this study. This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), Nano-Material Technology Development Program (No. 2017M3A7B4041696 )) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) under the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20173010013200 and No. 20163010012470 ).

Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry

Keywords

Cationic exchange
CuS
Hetero-nanostructure
PbS
Quantum dots
Solar cells

ASJC Scopus subject areas

General Chemical Engineering

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10.1016/j.jiec.2019.03.019

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title = "High performance solid-state PbS/CuS hetero-nanostructured quantum dots-sensitized solar cells",

abstract = " PbS/CuS hetero-nanostructured (HNS) quantum dots(QDs) with finely controlled PbS core-size (˜3, ˜5, and ˜7 nm) and CuS content (4, 7, 11, 14, 17, and 45 mol%) were successfully synthesized via the suppressed cationic exchange reaction rate by reducing the reaction temperature down to −3 °C. By the precise synthesis of the PbS/CuS HNS QDs, we found that the PbS/CuS HNS QDs with ˜3 nm in core-size and 14 mol% CuS have the most effective charge separation/injection from the HNS QDs to the mesoscopic TiO 2 electron conductor, thereby the sensitized solar cells exhibited high power conversion efficiency of 9.3%. ",

keywords = "Cationic exchange, CuS, Hetero-nanostructure, PbS, Quantum dots, Solar cells",

author = "Kwon, {O. Hoon} and Heo, {Jin Hyuck} and Soowung Park and Kim, {Sang Wook} and Im, {Sang Hyuk}",

note = "Funding Information: O.-H. Kwon and J.H Heo have equally contributed to this study. This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), Nano-Material Technology Development Program (No. 2017M3A7B4041696 )) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) under the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20173010013200 and No. 20163010012470 ). Publisher Copyright: {\textcopyright} 2019 The Korean Society of Industrial and Engineering Chemistry",

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AU - Kwon, O. Hoon

AU - Heo, Jin Hyuck

AU - Park, Soowung

AU - Kim, Sang Wook

AU - Im, Sang Hyuk

N1 - Funding Information: O.-H. Kwon and J.H Heo have equally contributed to this study. This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), Nano-Material Technology Development Program (No. 2017M3A7B4041696 )) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) under the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20173010013200 and No. 20163010012470 ). Publisher Copyright: © 2019 The Korean Society of Industrial and Engineering Chemistry

PY - 2019/7/25

Y1 - 2019/7/25

N2 - PbS/CuS hetero-nanostructured (HNS) quantum dots(QDs) with finely controlled PbS core-size (˜3, ˜5, and ˜7 nm) and CuS content (4, 7, 11, 14, 17, and 45 mol%) were successfully synthesized via the suppressed cationic exchange reaction rate by reducing the reaction temperature down to −3 °C. By the precise synthesis of the PbS/CuS HNS QDs, we found that the PbS/CuS HNS QDs with ˜3 nm in core-size and 14 mol% CuS have the most effective charge separation/injection from the HNS QDs to the mesoscopic TiO 2 electron conductor, thereby the sensitized solar cells exhibited high power conversion efficiency of 9.3%.

AB - PbS/CuS hetero-nanostructured (HNS) quantum dots(QDs) with finely controlled PbS core-size (˜3, ˜5, and ˜7 nm) and CuS content (4, 7, 11, 14, 17, and 45 mol%) were successfully synthesized via the suppressed cationic exchange reaction rate by reducing the reaction temperature down to −3 °C. By the precise synthesis of the PbS/CuS HNS QDs, we found that the PbS/CuS HNS QDs with ˜3 nm in core-size and 14 mol% CuS have the most effective charge separation/injection from the HNS QDs to the mesoscopic TiO 2 electron conductor, thereby the sensitized solar cells exhibited high power conversion efficiency of 9.3%.

KW - Cationic exchange

KW - CuS

KW - Hetero-nanostructure

KW - PbS

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KW - Solar cells

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JF - Journal of Industrial and Engineering Chemistry

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High performance solid-state PbS/CuS hetero-nanostructured quantum dots-sensitized solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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