Title

Colorimetric Sensor Array Based on Metal–Oxo Cluster Fabry–Pérot Interference Films

Alternative Title

금속–옥소 클러스터 기반 Fabry–Pérot 간섭 박막을 이용한 비색 센서 어레이

DGIST Authors

Sanghyun Lee ; Jinhee Park

Advisor

박진희

Issued Date

2026

Awarded Date

2026-02-01

Type

Thesis

Description

Sn-oxo cluster, Ti-oxo cluster, Fabry–Pérot interference films, colorimetric sensor array

Table Of Contents

List of Contents
Abstract i
List of Contents ii
List of Figures iv
List of Schemes vi


Ⅰ. Introduction 1
Ⅱ. Experimental Methods
2.1 Materials 4
2.2 Measurements 5
2.3 Syntheses
2.3.1 Syntheses of Sn-Oxo Clusters 6
2.3.2 Synthesis of Ti-Oxo Cluster 7
2.4 Fabrication of Metal–Oxo Cluster-Based Film on Si Wafer 7
2.5 Sensing Experiments 8
2.6 Colorimetric Measurement and Data Analysis 8
Ⅲ. Results and Discussions
3.1 Syntheses and Characterization of Sn- and Ti-Oxo Clusters 9
3.2 Solubility and Film-Forming Behavior of Sn- and Ti-Oxo Clusters 13
3.3 Solvent-Induced and Reversible Colorimetric Response of the Sn-1 Film 16
3.4 Sensor Array Application
3.4.1 Optical Behavior of Films Prepared by Mixing Sn-1 or Sn-2 with Ti-1 19
3.4.2 Solvent-Induced Color Change Patterns in Film Prepared by Mixing Sn-1 or Sn-2 with Ti-1 21
3.4.3 Comprehensive Analysis of Reversible and Quantitative Colorimetric Responses 23
3.4.4 Expanded Colorimetric Response of Films Prepared by Mixing Sn- and Ti-Oxo Clusters 25
3.4.5 Construction and Solvent-Selective Response of Sn- and Ti-Oxo Cluster-Based Sensor Array 29
3.4.6 Optimization of Vapor Generation Conditions for Consistent Colorimetric Response 31
3.4.7 Improvement of Baseline Color Reproducibility for Reliable Analysis 33
3.4.8 Reversibility Evaluation and Multivariate Analysis with an Expanded Solvent Set 34
3.4.9 Reproducibility Evaluation and Multivariate Analysis of Solvent-Responsive Sensor Array 39
3.4.10 Spectral and Thickness Analysis of Solvent-Induced Colorimetric Responses 42
Ⅳ. Conclusions 44
Ⅴ. References 46
Ⅵ. Summary 48

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59744
http://dgist.dcollection.net/common/orgView/200000945289

DOI

10.22677/THESIS.200000945289

Degree

Master

Department

Department of Physics and Chemistry

Publisher

DGIST

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