{"id":1845,"date":"2024-06-02T02:10:26","date_gmt":"2024-06-01T19:10:26","guid":{"rendered":"https:\/\/www.tneutron.net\/mikro\/?p=1845"},"modified":"2024-05-31T07:54:27","modified_gmt":"2024-05-31T00:54:27","slug":"photo-diode-sensor","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/mikro\/photo-diode-sensor\/","title":{"rendered":"Photo Diode Sensor"},"content":{"rendered":"<p><span class=\"notranslate\">Semiconductor photo devices utilize quantum effects on junctions, energies received by electrons that allow electrons to move from the valence tire to the conduction tire under reverse bias conditions.<\/span> <span class=\"notranslate\"> Semiconductor materials such as Germanium (Ge) and Silicon (Si) have 4 valence electrons, each electron in an atom is bonded so that the valence electron is even 8 for each atom, which is why the silicon crystals have low electrical conductivity, by the atomic atoms that surround it.<\/span><\/p>\n<p><span class=\"notranslate\"> To form a P-type semiconductor on the material is inserted impurities of class III elements, so that the material becomes more positively charged, due to electron vacuum in the crystal structure.<\/span> <span class=\"notranslate\"> When a N-type semiconductor is illuminated by light, the electrons that are not attached to the crystal structure will easily escape.<\/span> <span class=\"notranslate\"> Then when the semiconductor is connected type P and type N and then irradiated light, then there will be a voltage difference between the two materials.<\/span><\/p>\n<p><span class=\"notranslate\"> Potential differences in silicone materials generally range from 0.6 volts to 0.8 volts.<\/span> <span class=\"notranslate\"> Some of the characteristics of photo diodes that need to be known include: Linear dependent currents on the intensity of light.<\/span> <span class=\"notranslate\"> Frequency response depends on the material (Si 900nm, GaAs 1500nm, Ge 2000nm).<\/span> <span class=\"notranslate\"> Used as a current source Junction capacitance decreases according to the reverse bias voltage Junction capacitance determines the frequency response of the current obtained.<\/span><\/p>\n<p><span class=\"notranslate\"> The photo diode sensor is a light-sensitive diode, the photodiode sensor will experience a change of resistance when receiving the light intensity and will forward the electric current as the diode in general.<\/span> <span class=\"notranslate\"> Photodioda sensor is one type of light sensitive sensor (photodetector).<\/span> <span class=\"notranslate\"> Another type of light sensitivity sensor that is often used is phototransistor.<\/span> <span class=\"notranslate\"> Photodiode will flow the current forming a linear function to the received light intensity.<\/span> <span class=\"notranslate\"> This current is generally regular against power density (Dp).<\/span> <span class=\"notranslate\"> The comparison between output current and power density is called current responsitivity.<\/span> <span class=\"notranslate\"> The current in question is the leakage current when the photodioda is irradiated and in a downturned state.<\/span> <span class=\"notranslate\"> Picture the symbol and the original form<\/span><br \/>\n<a href=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image008-1.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"clip_image008\" src=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image008_thumb-1.jpg\" alt=\"clip_image008\" width=\"331\" height=\"151\" border=\"0\" \/><\/a><\/p>\n<p><span class=\"notranslate\"> The frequency response of the photodiode sensor is not broad.<\/span> <span class=\"notranslate\"> From that range of responses, the photodiode sensor has the best response to infrared light, precisely at light with a wavelength of about 0.9 \u03bcm.<\/span> <span class=\"notranslate\"> The photodiode sensor response curve is shown in the following figure.<\/span><\/p>\n<p><span class=\"notranslate\"> <b>Photodioda Frequency Response Curve<\/b><\/span><br \/>\n<a href=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image012.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"clip_image012\" src=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image012_thumb.jpg\" alt=\"clip_image012\" width=\"328\" height=\"246\" border=\"0\" \/><\/a><\/p>\n<p><span class=\"notranslate\"> The relationship between the photodiode sensor output and the intensity of light it receives when it is rewound is to form a linear function.<\/span> <span class=\"notranslate\"> The relationship between the photodioda sensor output and the light intensity is shown in the following figure.<\/span><\/p>\n<p><span class=\"notranslate\"> Photodiode Output Relation With Light Intensity<\/span><br \/>\n<a href=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image013.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"clip_image013\" src=\"https:\/\/www.tneutron.net\/mikro\/wp-content\/uploads\/sites\/5\/2017\/09\/clip_image013_thumb.jpg\" alt=\"clip_image013\" width=\"244\" height=\"210\" border=\"0\" \/><\/a><\/p>\n<p><span class=\"notranslate\"> For example photo diode applications can be used as fire sensors.<\/span> <span class=\"notranslate\"> The use of photodioda sensors as a detector of the presence of fire is based on the fact that on flames are also emitted infrared light.<\/span> <span class=\"notranslate\"> This can not be proven by the naked eye because infrared light is invisible light, but the presence of infrared light can be felt when there is a warm or hot flame from the flame that reaches our body.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Semiconductor photo devices utilize quantum effects on junctions, energies received by electrons that allow electrons to move from the valence<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[1238],"tags":[2351,2352,2353,2354,2355,2356,2357,2358,2359,2360,2361,2362,2363,2364,2365,2366,2367,2368,2369],"class_list":["post-1845","post","type-post","status-publish","format-standard","hentry","category-english","tag-1-channel-photodiode-sensor-module-for-arduino","tag-2-photodiode-sensor","tag-ambient-light-sensor-photodiode","tag-aplikasi-sensor-photodioda","tag-apple-watch-photodiode-sensor","tag-application-of-photodiode-sensor","tag-arduino-photodiode-sensor-module","tag-avalanche-photodiode-sensor-model","tag-buy-photo-diode-sensor","tag-camera-sensor-photodiode","tag-cara-kerja-sensor-photodiode","tag-cost-of-photodiode-sensor","tag-definisi-sensor-photodiode","tag-difference-between-photodiode-and-light-sensor","tag-dual-photodiode-sensor","tag-dual-photodiode-sensor-kamera","tag-fast-photodiode-sensor","tag-first-sensor-photodiode","tag-fungsi-sensor-photodiode"],"yoast_head":"<!-- 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