Photo induced NO2 sensing properties of bismuth triiodide (BiI3) nanoplates at room temperature

Pham Tien Hung; Vu Xuan Hien; Phung Dinh Hoat; Sangwook Lee; Joon Hyung Lee; Jeong Joo Kim; Young Woo Heo

doi:10.1016/j.scriptamat.2019.07.001

Photo induced NO₂ sensing properties of bismuth triiodide (BiI₃) nanoplates at room temperature

Pham Tien Hung
, Vu Xuan Hien
, Phung Dinh Hoat
, Sangwook Lee
, Joon Hyung Lee
, Jeong Joo Kim
, Young Woo Heo

Kyungpook National University
Hanoi University of Science and Technology

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

8 Scopus citations

Abstract

Herein we report on the growth of layered BiI₃ nanoplates materials and their sensing properties of NO₂ under violet light illumination. The BiI₃ nanoplates were grown on a glass substrate using a chemical vapor deposition (CVD) system, with an average thickness of 30 nm and the lateral dimension of 150–170 nm. Their photo-induced sensing response for 20 ppm NO₂ and the response/recovery time are approximately ~11.2% and 18/36 s, respectively. The limit of detection (LOD) of NO₂ for the BiI₃ sensor is 25 ppb. A possible light-induced gas-sensing mechanism was proposed and investigated for the BiI₃ nanoplate.

Original language	English
Pages (from-to)	17-22
Number of pages	6
Journal	Scripta Materialia
Volume	172
DOIs	https://doi.org/10.1016/j.scriptamat.2019.07.001
State	Published - Nov 2019

Keywords

BiI nanoplates
Gas sensor
NO
Photo-induced
Room temperature

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10.1016/j.scriptamat.2019.07.001

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title = "Photo induced NO2 sensing properties of bismuth triiodide (BiI3) nanoplates at room temperature",

abstract = "Herein we report on the growth of layered BiI3 nanoplates materials and their sensing properties of NO2 under violet light illumination. The BiI3 nanoplates were grown on a glass substrate using a chemical vapor deposition (CVD) system, with an average thickness of 30 nm and the lateral dimension of 150–170 nm. Their photo-induced sensing response for 20 ppm NO2 and the response/recovery time are approximately \textasciitilde{}11.2\% and 18/36 s, respectively. The limit of detection (LOD) of NO2 for the BiI3 sensor is 25 ppb. A possible light-induced gas-sensing mechanism was proposed and investigated for the BiI3 nanoplate.",

keywords = "BiI nanoplates, Gas sensor, NO, Photo-induced, Room temperature",

author = "Hung, \{Pham Tien\} and Hien, \{Vu Xuan\} and Hoat, \{Phung Dinh\} and Sangwook Lee and Lee, \{Joon Hyung\} and Kim, \{Jeong Joo\} and Heo, \{Young Woo\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = nov,

doi = "10.1016/j.scriptamat.2019.07.001",

language = "English",

volume = "172",

pages = "17--22",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Photo induced NO2 sensing properties of bismuth triiodide (BiI3) nanoplates at room temperature

AU - Hung, Pham Tien

AU - Hien, Vu Xuan

AU - Hoat, Phung Dinh

AU - Lee, Sangwook

AU - Lee, Joon Hyung

AU - Kim, Jeong Joo

AU - Heo, Young Woo

PY - 2019/11

Y1 - 2019/11

N2 - Herein we report on the growth of layered BiI3 nanoplates materials and their sensing properties of NO2 under violet light illumination. The BiI3 nanoplates were grown on a glass substrate using a chemical vapor deposition (CVD) system, with an average thickness of 30 nm and the lateral dimension of 150–170 nm. Their photo-induced sensing response for 20 ppm NO2 and the response/recovery time are approximately ~11.2% and 18/36 s, respectively. The limit of detection (LOD) of NO2 for the BiI3 sensor is 25 ppb. A possible light-induced gas-sensing mechanism was proposed and investigated for the BiI3 nanoplate.

AB - Herein we report on the growth of layered BiI3 nanoplates materials and their sensing properties of NO2 under violet light illumination. The BiI3 nanoplates were grown on a glass substrate using a chemical vapor deposition (CVD) system, with an average thickness of 30 nm and the lateral dimension of 150–170 nm. Their photo-induced sensing response for 20 ppm NO2 and the response/recovery time are approximately ~11.2% and 18/36 s, respectively. The limit of detection (LOD) of NO2 for the BiI3 sensor is 25 ppb. A possible light-induced gas-sensing mechanism was proposed and investigated for the BiI3 nanoplate.

KW - BiI nanoplates

KW - Gas sensor

KW - NO

KW - Photo-induced

KW - Room temperature

UR - https://www.scopus.com/pages/publications/85068540931

U2 - 10.1016/j.scriptamat.2019.07.001

DO - 10.1016/j.scriptamat.2019.07.001

M3 - Article

AN - SCOPUS:85068540931

SN - 1359-6462

VL - 172

SP - 17

EP - 22

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Photo induced NO₂ sensing properties of bismuth triiodide (BiI₃) nanoplates at room temperature

Abstract

Keywords

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