Fig. 3. (Color online) UPS spectra of NPB layer (0.3, 0.6, 1.2, 1.8, 2.8, 3.8 nm) on the 3 nm HAT-CN substrate.

New Phys.: Sae Mulli 2025;75:114~119 https://doi.org/10.3938/NPSM.75.114

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