1：Experimental Design and Method Selection:

The study involved synthesizing TPA-substituted Ir(III) complexes, characterizing their photophysical and electrochemical properties, performing theoretical calculations (DFT), and evaluating oxygen sensitivity in THF using the Demas model for Stern-Volmer analysis.

2：Sample Selection and Data Sources:

Samples included synthesized IrA1, IrA2, IrA3, and reference Ir(ppy)3 complexes. Data were obtained from spectroscopic measurements, cyclic voltammetry, and computational simulations.

3：List of Experimental Equipment and Materials:

Equipment included fluorescence spectrophotometer (Agilent Cary Eclipse G9800A), UV-Vis-NIR spectrometer (Agilent Cary 5000), electrochemical workstation (Princeton Applied Research PARSTAT 2273), Laser Flash Photolysis system, NMR spectrometer (Bruker AVANCE III HD 500 MHz), mass spectrometer (MALDI micro MX), and computational software (Gaussian 16). Materials included chemicals like 2-bromopyridine, boronic acids, IrCl3·3H2O, solvents (THF, ethanol, water), and silicon gel for sensor fabrication.

4：6). Materials included chemicals like 2-bromopyridine, boronic acids, IrCl3·3H2O, solvents (THF, ethanol, water), and silicon gel for sensor fabrication. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: Synthesis of ligands and complexes via cross-coupling reactions, purification, characterization (NMR, mass spectrometry), measurement of absorption/emission spectra, phosphorescence lifetimes, cyclic voltammetry, DFT calculations for orbital analysis, oxygen sensitivity tests in THF with controlled oxygen concentrations, and fabrication of an oxygen sensor using silicon gel.

5：Data Analysis Methods:

Data were analyzed using Stern-Volmer equations, Demas model for heterogeneity, and statistical methods for calculating collision radius ratios and limits of detection. Computational data were analyzed with Gaussian 16 software.