Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs

Table 1

The relative intensities and inhibition ability of LED coated with a layer of bismuth oxide photocatalyst at different wavelength.

Category of photocatalyst	Spectrum region (nm)			Inhibition ability of UV (%)	Inhibition ability of visible light (%)
	360–420	420–780	780–1000
	Power (μW)
Noncoating	163.7569	763.8944	8.0054	NA	NA
SP500	92.2919	544.5116	6.5766	43.14%	26.61%
SP600	92.1663	560.6209	6.9978	43.72%	28.72%
SP700	78.0649	511.0019	5.8518	52.33%	33.11%
SP800	85.7250	536.9019	7.5358	47.65%	29.72%