Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance

Photoresist is the key material in the fabrication of micropatterns or microstructures. Tuning the surface wettability of photoresist film is a critical consideration in its application of microfluidics. In this work, the surface wettability tuning of acrylic resin photoresist by oxygen plasma or ul...

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Main Authors: Yingying Dou, Fahong Li, Biao Tang, Guofu Zhou
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/14/4866
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author Yingying Dou
Fahong Li
Biao Tang
Guofu Zhou
author_facet Yingying Dou
Fahong Li
Biao Tang
Guofu Zhou
author_sort Yingying Dou
collection DOAJ
description Photoresist is the key material in the fabrication of micropatterns or microstructures. Tuning the surface wettability of photoresist film is a critical consideration in its application of microfluidics. In this work, the surface wettability tuning of acrylic resin photoresist by oxygen plasma or ultra-violet/ozone, and its aging performance in different atmospheres, were systematically studied. The chemical and physical characterizations of the surfaces before and after modification show a dramatic decrease in the C–C group and increase in surface roughness for oxygen plasma treatment, while a decrease of the C–C group was found for the UV/ozone treatment. The above difference in the surface tuning mechanism may explain the stronger hydrophilic modification effect of oxygen plasma. In addition, we found an obvious fading of the wettability tuning effect with an environment-related aging speed, which can also be featured by the decrease of the C–C group. This study demonstrates the dominated chemical and physical changes during surface wettability tuning and its aging process, and provides basis for surface tuning and the applications in microfluidics.
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spelling doaj.art-589951f6194e44cab06171c18fbf5c322023-11-22T04:57:47ZengMDPI AGSensors1424-82202021-07-012114486610.3390/s21144866Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging PerformanceYingying Dou0Fahong Li1Biao Tang2Guofu Zhou3Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaNational Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaPhotoresist is the key material in the fabrication of micropatterns or microstructures. Tuning the surface wettability of photoresist film is a critical consideration in its application of microfluidics. In this work, the surface wettability tuning of acrylic resin photoresist by oxygen plasma or ultra-violet/ozone, and its aging performance in different atmospheres, were systematically studied. The chemical and physical characterizations of the surfaces before and after modification show a dramatic decrease in the C–C group and increase in surface roughness for oxygen plasma treatment, while a decrease of the C–C group was found for the UV/ozone treatment. The above difference in the surface tuning mechanism may explain the stronger hydrophilic modification effect of oxygen plasma. In addition, we found an obvious fading of the wettability tuning effect with an environment-related aging speed, which can also be featured by the decrease of the C–C group. This study demonstrates the dominated chemical and physical changes during surface wettability tuning and its aging process, and provides basis for surface tuning and the applications in microfluidics.https://www.mdpi.com/1424-8220/21/14/4866photoresistcontact anglewettability tuningaging
spellingShingle Yingying Dou
Fahong Li
Biao Tang
Guofu Zhou
Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
Sensors
photoresist
contact angle
wettability tuning
aging
title Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
title_full Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
title_fullStr Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
title_full_unstemmed Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
title_short Surface Wettability Tuning of Acrylic Resin Photoresist and Its Aging Performance
title_sort surface wettability tuning of acrylic resin photoresist and its aging performance
topic photoresist
contact angle
wettability tuning
aging
url https://www.mdpi.com/1424-8220/21/14/4866
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AT fahongli surfacewettabilitytuningofacrylicresinphotoresistanditsagingperformance
AT biaotang surfacewettabilitytuningofacrylicresinphotoresistanditsagingperformance
AT guofuzhou surfacewettabilitytuningofacrylicresinphotoresistanditsagingperformance