- aim
- attached
- binding
- construct
- conversion
- convert
- coordination
- copper
- correlation
- currently
- demonstrates
- dioxide
- dye
- dyes
- effectively
- efficiency
- efficient
- electrical
- enhancing
- established
- expensive
- family
- focused
- inexpensive
- international
- internationally
- junction
- lead
- material
- materials
- measuring
- metal
- metal_based
- mode
- modify
- practical
- preliminary
- ruthenium
- semiconductor
- semiconductors
- solar
- somewhat
- strength
- strengths
- strongly
- sun
- sunlight
- surface
- titanium
- utilise
