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Table 1 Summary of performance of the P3HT:ICBA inverted PSCs and the P3HT:PCBM inverted PSCs with different film

From: Enhanced efficiency of inverted polymer solar cells by using solution-processed TiO_x/CsO_x cathode buffer layer

Device	V _OC (V)	J _SC (mA cm ⁻² )	FF (%)	PCE (%)	Contact angle (°)	μ _e (cm ² V ⁻¹ ·s ⁻¹ )
CsO_x ^a	0.82	9.79	61.2	4.91	24.5 ± 0.5	3.85 × 10⁻³
TiO_x ^a	0.76	10.82	60.2	4.95	32.0 ± 2.0	5.00 × 10⁻³
TiO_x/CsO_x ^a	0.84	10.95	61.4	5.65	21.0 ± 0.5	5.52 × 10⁻³
CsO_x ^b	0.58	9.86	59.6	3.41	---	---
TiO_x ^b	0.55	10.63	57.3	3.35	---	---
TiO_x/CsO_x ^b	0.59	10.81	59.0	3.76	---	---

^aPSCs based on P3HT:ICBA; ^bPSCs based on P3HT:PCBM.

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