Inorganic Photochemistry and Solar Energy Harvesting: Current Developments and Challenges to Solar Fuel Production

Table 1

Efficiencies of some photoanodes employed in DSPECs for water oxidation.

Dye	Semiconductor	OER catalyst	Steady-state photocurrent (μA·cm^−2)	Faradaic efficiency of O2 generation	IPCE (wavelength)	TONO2/TOF (s^−1)	Ref
	TiO2	IrO2.nH2O				10^5/−	[94]
	TiO2	IrOx.nH2O		2.3% (blue light)			[95]
	IrO2/SnO2	IrO2	1700			2.1 × 10^5/6.7	[96]
	Fe2O3/IrOx	IrOx	200 (0.3 V)				[97]
	IrOx		0.25 V	99% in 2 h		10^6/7.9	[98]
	TiO2/IrO2	IrO2					[99]
	TiO2	in PMMA	2200		9.5% (450 nm)		[100]
	TiO2/SnO2						[101, 102]
	TiO2/Si-Cl ((3-chloropropyl)trimethoxy-silane)		1750	0.72%	13.8% (450 nm)	−/10	[103]
	TiO2		1500			−/10	[104]
	TiO2		450			0.53 μmol/−	[105]
	TiO2		100			0.15 μmol/−	[105]
	TiO2	Co3O4 modified with 3-aminopropyltriethoxysilane (NP)					[106]
	SnO2/AgNP/TiO2		2000	95%	31.8% (450 nm)		[107]
	nanoITO (4.5 nm)/TiO2(0.6 nm)		132				[108]
	TiO2		300		25% (380 nm)		[109]

AgNP: Ag nanoparticles.