本論文使用商業紫外光發光二極體(UV LED)晶圓製作積體化UV LED與監控光偵測器(monitoring photodiode; MPD)。量測UV LED的基本光電特性，量測MPD的基本光電特性，包括暗電流與不同偏壓下的光電流和量子效率。以MPD即時監控同一晶片上的UV LED發光功率，量測MPD不同偏壓下的監控響應率，並以運算放大器(Operational Amplifier)將MPD光電流訊號轉成電壓訊號，再將電壓信號傳送進Arduino的類比數位轉換器(Analog-to-digital converter，ADC)，最後藉由藍牙傳輸至手機端顯示UV LED光功率。
　　在UV LED光電特性量測下，紫外光發光二極體啟動電壓(Turn On Voltage)約為3.05 V，其串聯電阻為10.2 Ω。當紫外光發光二極體電流為20 mA下，光輸出功率為4.43 mW。
　　當UV LED電流由0 mA增加至20 mA，MPD在偏壓0 V下，其光電流由0 A增加至8.64 × 10-5 A，監控響應率維持在約20 mA/W；在逆向偏壓3 V下，其光電流由0 A增加至1.02 × 10-4 A，其監控響應率維持在22至23 mA/W，並將光電流對光功率作圖可得非常好的線性關係。
　　在模組電路中，由手機設定發光二極體驅動電壓範圍為3.082 V至3.134 V，其對應注入電流為8 mA至13 mA，手機端顯示的光功率為1.72 mW至2.73 mW，MPD電壓為3.02 V至4.78 V，光功率最大誤差為4.86 %。

　　In this paper, a commercial Ultraviolet Light Emitting Diode (UV LED) wafer is used to fabricate integrated UV LED and monitoring photodiode (MPD). The characteristics of the basic photoelectric properties of UV LED, as well as MPD basic photoelectric properties including dark current, photocurrent and quantum efficiency under different bias voltages were measured The light power of UV LED on the same chip is monitored by using MPD in real time under different bias voltages. Operational Amplifier converts the photocurrent signal from MPD to voltage signal and send it to the Analog to Digital Converter (ADC) in Arduino. The display of UV LED light power is finally transmitted to mobile phone via Bluetooth.
　　The measured UV LED has characteristics of turn-on voltage and series resistance of 3.05 V and 10.2 Ω, respectively. The UV LED light power shows 4.43 mW when the injection current is 20 mA.
　　When the UV LED current increases from 0 mA to 20 mA and MPD is biased at 0 V, its photocurrent increases from 0 A to 8.64 × 10-5 A and the monitoring responsivity of MPD is maintained at about 20 mA/W; in reverse bias at 3 V, its photocurrent increases from 0 A to 1.02 × 10-4 A and the monitoring responsivity is maintained at 22 – 23 mA/W. Therefore, a very good linear relationship can be obtained by plotting photocurrent to light power
　　In the module circuit, the LED driving voltage range is set by the mobile phone to be 3.082 V to 3.134 V, and the corresponding injection current is 8 mA to 13 mA. Thus, the light power displayed on the mobile phone is 1.72 mW to 2.73 mW, and the MPD voltage is 3.02 V to 4.78 V. Based on measurements displayed on the mobile phone compared to the Automated Testing Equipment (ATE) of Chroma, the maximum error of light power is 4.86%.

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