Figure 2. (A) SAM solutions and spin coating processes on ITO substrate, (B) O 1s XPS spectra of bare ITO and ITO/P-4PACz, (C) P 2p XPS spectra of ITO/P-4PACz and ITO/4PACz, (D) In 3d XPS spectra of bare ITO and ITO/SAMs.
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