0

Guest

Courses New

The current in forward bias is known to be more than the current in reverse se bias. What is the reason then to operate the photodiodes in reverse bias?(This is an ncert example,14.6. Is there any other approach to this question?)

The current in forward bias is known to be more than the current in reverse se bias. What is the reason then to operate the photodiodes in reverse bias?(This is an ncert example,14.6. Is there any other approach to this question?)

Grade:12

1 Answers

Arun
25750 Points
6 years ago
The photodiode is reverse biased for operating in the photoconductive mode. As the photodiode is in reverse bias the width of the depletion layer increases. This reduces the junction capacitance and thereby the response time. In effect, the reverse bias causes faster response times for the photodiode. The photocurrent is linearly proportional to the illuminance.

Think You Can Provide A Better Answer ?

Other Related Questions on Electric Current

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More