EFFECT of AMBIENT RELATIVE HUMIDITY and SOAKING TIME on the FORMATION of OCTADECYLTRICHLOROSILANE COATINGS on BOROSILICATE GLASS SUBSTRATES for ALKALI-METAL VAPOR CELLS

Haotian Chi; Junying Zhang; Heng Yuan; Zhongyu Cai; Sheng Zou; W. E.I. Quan

doi:10.1142/S0218625X21501213

EFFECT of AMBIENT RELATIVE HUMIDITY and SOAKING TIME on the FORMATION of OCTADECYLTRICHLOROSILANE COATINGS on BOROSILICATE GLASS SUBSTRATES for ALKALI-METAL VAPOR CELLS

Haotian Chi
, Junying Zhang
, Heng Yuan
, Zhongyu Cai
, Sheng Zou
, W. E.I. Quan^*

^*Corresponding author for this work

Beihang University

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

2 Scopus citations

Abstract

The most sensitive spin-exchange relaxation-free (SERF) magnetometer generally requires a working temperature greater than 100°C. To date, octadecyltrichlorosilane (OTS) coating is one of the best candidates for this temperature range. However, the performance and consistency of the OTS coatings within the alkali-metal vapor cells are still poor. In this paper, the formation of OTS coatings on borosilicate glass (BG) substrates was investigated. The effects of ambient relative humidity (RH) on the formation of OTS coatings were examined by atomic force microscopy (AFM) and contact angle measurement. The results showed that 75% RH can improve the order of the OTS coatings and reduce the root mean square (RMS) roughness of the OTS coatings. Under three different ambient RHs, the soaking time of OTS molecules should be greater than 60min to form complete OTS coating.

Original language	English
Article number	2150121
Journal	Surface Review and Letters
Volume	28
Issue number	12
DOIs	https://doi.org/10.1142/S0218625X21501213
State	Published - 1 Dec 2021

Keywords

Ambient humidity
SERF magnetometer
alkali-metal vapor cells
anti-relaxation OTS coatings
borosilicate glass substrate
soaking time

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@article{22d639a6e1124d92a69ecee19e87afd4,

title = "EFFECT of AMBIENT RELATIVE HUMIDITY and SOAKING TIME on the FORMATION of OCTADECYLTRICHLOROSILANE COATINGS on BOROSILICATE GLASS SUBSTRATES for ALKALI-METAL VAPOR CELLS",

abstract = "The most sensitive spin-exchange relaxation-free (SERF) magnetometer generally requires a working temperature greater than 100°C. To date, octadecyltrichlorosilane (OTS) coating is one of the best candidates for this temperature range. However, the performance and consistency of the OTS coatings within the alkali-metal vapor cells are still poor. In this paper, the formation of OTS coatings on borosilicate glass (BG) substrates was investigated. The effects of ambient relative humidity (RH) on the formation of OTS coatings were examined by atomic force microscopy (AFM) and contact angle measurement. The results showed that 75\% RH can improve the order of the OTS coatings and reduce the root mean square (RMS) roughness of the OTS coatings. Under three different ambient RHs, the soaking time of OTS molecules should be greater than 60min to form complete OTS coating.",

keywords = "Ambient humidity, SERF magnetometer, alkali-metal vapor cells, anti-relaxation OTS coatings, borosilicate glass substrate, soaking time",

author = "Haotian Chi and Junying Zhang and Heng Yuan and Zhongyu Cai and Sheng Zou and Quan, \{W. E.I.\}",

note = "Publisher Copyright: {\textcopyright} 2021 World Scientific Publishing Company.",

year = "2021",

month = dec,

day = "1",

doi = "10.1142/S0218625X21501213",

language = "英语",

volume = "28",

journal = "Surface Review and Letters",

issn = "0218-625X",

publisher = "World Scientific Publishing Co. Pte Ltd",

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T1 - EFFECT of AMBIENT RELATIVE HUMIDITY and SOAKING TIME on the FORMATION of OCTADECYLTRICHLOROSILANE COATINGS on BOROSILICATE GLASS SUBSTRATES for ALKALI-METAL VAPOR CELLS

AU - Chi, Haotian

AU - Zhang, Junying

AU - Yuan, Heng

AU - Cai, Zhongyu

AU - Zou, Sheng

AU - Quan, W. E.I.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - The most sensitive spin-exchange relaxation-free (SERF) magnetometer generally requires a working temperature greater than 100°C. To date, octadecyltrichlorosilane (OTS) coating is one of the best candidates for this temperature range. However, the performance and consistency of the OTS coatings within the alkali-metal vapor cells are still poor. In this paper, the formation of OTS coatings on borosilicate glass (BG) substrates was investigated. The effects of ambient relative humidity (RH) on the formation of OTS coatings were examined by atomic force microscopy (AFM) and contact angle measurement. The results showed that 75% RH can improve the order of the OTS coatings and reduce the root mean square (RMS) roughness of the OTS coatings. Under three different ambient RHs, the soaking time of OTS molecules should be greater than 60min to form complete OTS coating.

AB - The most sensitive spin-exchange relaxation-free (SERF) magnetometer generally requires a working temperature greater than 100°C. To date, octadecyltrichlorosilane (OTS) coating is one of the best candidates for this temperature range. However, the performance and consistency of the OTS coatings within the alkali-metal vapor cells are still poor. In this paper, the formation of OTS coatings on borosilicate glass (BG) substrates was investigated. The effects of ambient relative humidity (RH) on the formation of OTS coatings were examined by atomic force microscopy (AFM) and contact angle measurement. The results showed that 75% RH can improve the order of the OTS coatings and reduce the root mean square (RMS) roughness of the OTS coatings. Under three different ambient RHs, the soaking time of OTS molecules should be greater than 60min to form complete OTS coating.

KW - Ambient humidity

KW - SERF magnetometer

KW - alkali-metal vapor cells

KW - anti-relaxation OTS coatings

KW - borosilicate glass substrate

KW - soaking time

UR - https://www.scopus.com/pages/publications/85121280265

U2 - 10.1142/S0218625X21501213

DO - 10.1142/S0218625X21501213

M3 - 文章

AN - SCOPUS:85121280265

SN - 0218-625X

VL - 28

JO - Surface Review and Letters

JF - Surface Review and Letters

IS - 12

M1 - 2150121

ER -

EFFECT of AMBIENT RELATIVE HUMIDITY and SOAKING TIME on the FORMATION of OCTADECYLTRICHLOROSILANE COATINGS on BOROSILICATE GLASS SUBSTRATES for ALKALI-METAL VAPOR CELLS

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