28 , 29 Furthermore, the SAMs exhibit a clear trend in dipole strength, going from 2PACz > Me-4PACz > MeO-2PACz, 30 , 31 leading to well-differentiated Fermi level shifts upon anchoring on the metal oxide surface, as characterized via UPS/XPS. 32 These SAMs are thus an ideal starting point for increasing our understanding of device energetics.
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Understanding the Impact of SAM Fermi Levels on High Efficiency p-i-n Perovskite Solar Cells.
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