Ultraviolet sensor, ultraviolet sensing apparatus, and sensing method for obtaining compensated ultraviolet sensing result

The invention discloses an ultraviolet sensor, an ultraviolet sensing apparatus, and a sensing method for obtaining a compensated ultraviolet sensing result. The ultraviolet sensor includes a p-type doping substrate, an n-type doping region and an ultraviolet pass filter layer. The n-type doping region is formed on a surface of the p-type doping substrate. The ultraviolet pass filter layer is disposed in correspondence with the n-type doping region. The n-type doping region is located between the ultraviolet pass filter layer and the p-type doping substrate. An ultraviolet sensing apparatus includes an ultraviolet sensor, an auxiliary light sensor and a processing circuit. The ultraviolet sensor generates an ultraviolet sensing result in response to surrounding light. The auxiliary light sensor generates an auxiliary light sensing result in response to the surrounding light. The auxiliary light sensor and the ultraviolet sensor have different detection wave ranges. The processing circuit performs manipulation upon the auxiliary light sensing result according to the ultraviolet sensing result, and accordingly obtains a compensated ultraviolet sensing result. The ultraviolet sensor and the ultraviolet sensing apparatus are advantaged by simple process, easy integration, and good sensitivity.