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What is the effect of temperature on photodiode?

photodiodes are basically reverse biased diodes with optical windows that allow like to shine on the PN junction. Like any diode, the leakage current (otherwise known as a photodiodes 'dark' current) increases exponentually with temperature in accordance to William Shockley's idea diode eqation. The other effect in a photo diode is the probability of a photon of a certain energy allowing an electron to cross the PN junction. This is known as the quantum efficiency of the photodiode. Because increasing temperatures increase the vibration of the silicon atoms, making them easier to be knocked loose by a photon. Thus the quantum efficiency of a photodiode will increase with tempature, as well as the thermally induced noise. photodiodes are basically reverse biased diodes with optical windows that allow like to shine on the PN junction. Like any diode, the leakage current (otherwise known as a photodiodes 'dark' current) increases exponentually with temperature in accordance to William Shockley's idea diode eqation. The other effect in a photo diode is the probability of a photon of a certain energy allowing an electron to cross the PN junction. This is known as the quantum efficiency of the photodiode. Because increasing temperatures increase the vibration of the silicon atoms, making them easier to be knocked loose by a photon. Thus the quantum efficiency of a photodiode will increase with tempature, as well as the thermally induced noise. photodiodes are basically reverse biased diodes with optical windows that allow like to shine on the PN junction. Like any diode, the leakage current (otherwise known as a photodiodes 'dark' current) increases exponentually with temperature in accordance to William Shockley's idea diode eqation. The other effect in a photo diode is the probability of a photon of a certain energy allowing an electron to cross the PN junction. This is known as the quantum efficiency of the photodiode. Because increasing temperatures increase the vibration of the silicon atoms, making them easier to be knocked loose by a photon. Thus the quantum efficiency of a photodiode will increase with tempature, as well as the thermally induced noise.


Where would you get alternating current?

You can manufacture your own alternating current, using an oscillator and amplifier capable of outputting significant power. But it's a lot easier to just get it from one of the electrical outlets in your house, since that's what the utility company generates and distributes.


What happens to the current at a junction in a parallel circuit?

In a parallel circuit the current divides when it comes to a junction. Part of the current flows through one branch and the other part flows through the other.When the two branches have the same resistance, the same current flows through each branch.When the two branches have different resistances, a bigger current flows through the branch with the smaller resistance - it's just easier this way!Hope i helped ;)


Why does resistance of human body decrease to electricity when body is wet?

If you increase resistance, current is restricted (river is damed up). If you decrease restistance, current flows faster (river is wide and open). With water on our skin the current can travel across our skin instead of having to move through our bodies. The current has found a new path. Not inside our bodies but outside our bodies where there is much less resistance. Which is better? A large highway with a traffic jam or the side road next to the highway with the traffice jam The side road is effected by the traffic jam, but is still faster than the highway.


How do you convert voltmeter to ohmmeter?

First you will need a constant current source. Do NOT connect the voltmeter to the constant current source without the resistor to be measured already connected. Do NOT use a battery, it is a voltage source. Then follow these steps to measure a resistor:connect the voltmeter across the resistor to be measuredconnect the voltmeter-resistor combination across the constant current sourceread the voltmeter and record the voltagedisconnect the voltmeter-resistor combination from the constant current sourcedisconnect the voltmeter from the resistorcalculate the resistance from the measured voltage and current from the source with Ohm's law in this form: R = V ÷ IIts much easier to just use the ohms setting on a multimeter.

Related Questions

What statement accurately describes a significant effect of globalization?

Improvements in technology made international communication easier.


What are the negative impacts of globalization?

You can't think on negativeness. Globalization means easier ways to solve conflicts, both military and economic. The world will run smoothly when people start understand one another.


How did the free enterprise system contribute to globalization during the 20th century?

. It drove companies to produce new shipping and communications technologies. …


Where is globalization now?

Globalization is currently at a point where advancements in technology and transportation have made it easier for countries to connect and trade on a global scale. However, there is also increasing discussion and debate around issues such as income inequality, environmental impact, and national sovereignty as a result of globalization.


Does outsourcing your business process to external comanies always mean outsourcing the actual manufacturing of products or provision of services?

I work for a service company that outsources a lot of work to India. The representatives in India will take phone calls from customers, process claims or other functions, or just about anything. Outsourcing service is probably a lot easier than outsourcing manufacturing. No. What "business process outsourcing" means is outsourcing the "non-core" overhead parts of a company's business, such as payroll, employee benefits, accounting, and customer service (no joke on that last one).


Match each current trend in the global economy with one of its economic effects.?

Improved communication: Easier outsourcing; Trade liberalization: Increased trade; Infrastructure development: Cheaper transportation; Industrialization: Greater productivity.


Problems of globalisation?

There are many good things that have come from Globalization. However, there have been problems from it, too. People are much too ready to get involved in things now that there is Globalization. Also, things like illegal drugs are much easier to get.


What are three arguments against globalization?

One argument against globalization is that their is more disparity of wealth now. Other arguments against globalization are that the economics of other countries can affect America and countries can lose jobs when other countries will do the work for less.


What will increase the voltage in a circuit?

There is a way to use capacitors to increase the voltage in an ac circuit. It increases it by about 50 %. It was used to increase the voltage going to motors. It is seldom used now that it is much easier to run a higher voltage line into a place of business. It does not work for Direct Current.


Is it easier to increase internal validity than external validity?

No it is not easier because of the external flow.


Advantages of IT?

Globalization, communication quicker, easier and more convenient, Cost effectiveness, Bridging the cultural gap, More time, Creation of new jobs,


What is impact of globalization on pronunciation?

Globalization has led to increased interactions among speakers of different languages, resulting in the exchange of pronunciation norms. This has caused languages to influence each other, leading to changes in pronunciation patterns in various languages. Additionally, the spread of media and technology has made it easier for different pronunciations to be heard and adopted by speakers worldwide.