【摘 要】
：
Molybdenum oxide (MoOx) is a commonly used hole extraction material in organic photovoltaics.The MoOx interlayer is deposited typically via thermal evaporation in vacuum.To meet the need for roll-to-roll manufacturing,solution processing of MoOx without p
【机 构】
：
School of Energy & Power Engineering,MOE Key Laboratory of Low-Grade Energy Utilization Technologies
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Molybdenum oxide (MoOx) is a commonly used hole extraction material in organic photovoltaics.The MoOx interlayer is deposited typically via thermal evaporation in vacuum.To meet the need for roll-to-roll manufacturing,solution processing of MoOx without post-annealing treatment is essential.Herein,we demonstrate an effective approach to produce annealing-free,alcohol-processable MoOx anode interlayers,namely S-MoOx,by utilizing the bis(catecholato) diboron (B2Cat2) molecule to modify the surface oxygen sites in MoOx.The formation of surface diboron-oxygen complex enables the alcohol solubility of S-MoOx.An enhanced light utilization is realized in the S-MoOx-based organic photovoltaics.This affords a superior short-circuit current density (JSC) close to 26 rnA cm-2 and ultimately a high power-conversion efficiency (PCE) of 15.2％ in the representative PM6∶Y6 based inverted OPVs,which is one of the highest values in the inverted OPVs using an as-cast S-MoOx anode interlayer.
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