Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids

Huan Liu; Min Li; Oleksandr Voznyy; Long Hu; Qiuyun Fu; Dongxiang Zhou; Zhe Xia; Edward H. Sargent; Jiang Tang

doi:10.1002/adma.201304366

Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids

Huan Liu, Min Li, Oleksandr Voznyy, Long Hu, Qiuyun Fu^*, Dongxiang Zhou, Zhe Xia, Edward H. Sargent, Jiang Tang

^*Corresponding author for this work

Chemistry

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

325 Scopus citations

Abstract

A gas sensor based on PbS colloidal quantum dots (CQDs) is constructed on a paper substrate, yielding flexible, rapid-response NO₂ gas sensors, fabricated from the solution phase. The devices are highly sensitive and fully recoverable at room temperature, which is attributed to the excellent access of gas molecules to the CQD surface, realized by surface ligand removal, combined with the desirable binding energy of NO₂ with the PbS CQDs.

Original language	English (US)
Pages (from-to)	2718-2724
Number of pages	7
Journal	Advanced Materials
Volume	26
Issue number	17
DOIs	https://doi.org/10.1002/adma.201304366
State	Published - May 7 2014

Funding

Keywords

colloidal quantum dots
gas sensors
lead sulfide
nitrogen dioxide

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
General Materials Science

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10.1002/adma.201304366

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title = "Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids",

abstract = "A gas sensor based on PbS colloidal quantum dots (CQDs) is constructed on a paper substrate, yielding flexible, rapid-response NO2 gas sensors, fabricated from the solution phase. The devices are highly sensitive and fully recoverable at room temperature, which is attributed to the excellent access of gas molecules to the CQD surface, realized by surface ligand removal, combined with the desirable binding energy of NO2 with the PbS CQDs.",

keywords = "colloidal quantum dots, gas sensors, lead sulfide, nitrogen dioxide",

author = "Huan Liu and Min Li and Oleksandr Voznyy and Long Hu and Qiuyun Fu and Dongxiang Zhou and Zhe Xia and Sargent, {Edward H.} and Jiang Tang",

year = "2014",

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doi = "10.1002/adma.201304366",

language = "English (US)",

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T1 - Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids

AU - Liu, Huan

AU - Li, Min

AU - Voznyy, Oleksandr

AU - Hu, Long

AU - Fu, Qiuyun

AU - Zhou, Dongxiang

AU - Xia, Zhe

AU - Sargent, Edward H.

AU - Tang, Jiang

PY - 2014/5/7

Y1 - 2014/5/7

N2 - A gas sensor based on PbS colloidal quantum dots (CQDs) is constructed on a paper substrate, yielding flexible, rapid-response NO2 gas sensors, fabricated from the solution phase. The devices are highly sensitive and fully recoverable at room temperature, which is attributed to the excellent access of gas molecules to the CQD surface, realized by surface ligand removal, combined with the desirable binding energy of NO2 with the PbS CQDs.

AB - A gas sensor based on PbS colloidal quantum dots (CQDs) is constructed on a paper substrate, yielding flexible, rapid-response NO2 gas sensors, fabricated from the solution phase. The devices are highly sensitive and fully recoverable at room temperature, which is attributed to the excellent access of gas molecules to the CQD surface, realized by surface ligand removal, combined with the desirable binding energy of NO2 with the PbS CQDs.

KW - colloidal quantum dots

KW - gas sensors

KW - lead sulfide

KW - nitrogen dioxide

UR - http://www.scopus.com/inward/record.url?scp=84899999480&partnerID=8YFLogxK

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SN - 0935-9648

VL - 26

SP - 2718

EP - 2724

JO - Advanced Materials

JF - Advanced Materials

IS - 17

ER -

Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids

Abstract

Funding

Keywords

ASJC Scopus subject areas

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