Defective yellow tungsten oxide nanoparticle can be used to convert solar energy into thermal energy, thereby developing a new type of photothermal conversion material.

Tungsten alloy collimator is used in an anger camera for collimation and absorption of gamma rays. And therefore, it improves imaging quality and protects patients. Anger camera, which is more often known as gamma camera or γ-camera, is a device used to image gamma radiation emitting radioisotopes.

Yellow tungsten oxide, or tungsten trioxide (WO3), may be widely applied for producing photocatalytic coating. Tungsten trioxide has band gap between 2.4-28eV, and has good absorption of visible light. Also, it is very stable in aqueous solution. So, it is regarded as a potential photocatalytic material for visible light response. Therefore, WO3 photocatalyst with excellent visible light photocatalytic performance may be used to produce photocatalytic coating.

Tungsten alloy X-ray collimator is a highprecision collimator for X-ray detectors, which absorbs scattered radiation and thus helps ensure an extremely high image quality. W (tungsten alloy) is better suited for this task than any other element in the periodic table as it has high density and excellent X-ray absorption capability.