1：Experimental Design and Method Selection:

The study involved the design and synthesis of TPA-PIM, a bipolar deep blue-emitting fluorescent material, using triphenylamine as an electron-donor and imidazole as an electron-acceptor.

2：Sample Selection and Data Sources:

The material's properties were investigated through photophysical, thermal, and electrochemical analyses.

3：List of Experimental Equipment and Materials:

Equipment included a Yanaco micro melting point apparatus, Bruker advance 400 MHz spectrometer, Agilent Technologies 6545 Q-TOF LCMS spectrometer, Varian Cary 60 spectrophotometer, Hitachi F-7000 fluorescence spectrometer, Mettler Toledo TGA/DSC1, Mettler Toledo DSC3 instrument, and CHI660C Electrochemical Workstation.

4：Experimental Procedures and Operational Workflow:

The synthesis involved refluxing a mixture of benzil, 4-(diphenylamino)benzaldehyde, 4-tert-butyl benzenamine, and ammonium acetate in ethanol. The OLEDs were fabricated by thermal vacuum deposition on pre-patterned ITO glass substrates.

5：Data Analysis Methods:

The data were analyzed using various spectroscopic and electrochemical techniques to determine the material's properties and device performance.