Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

5. Assuming an internal quantum efficiency of 1, compare a silicon pn-junction photodiode to a silicon Schottky junction photodiode by calculating the photocurrent and

 

5. Assuming an internal quantum efficiency of 1, compare a silicon pn-junction photodiode to a silicon Schottky junction photodiode by calculating the photocurrent and responsivity for each photodiode. Assume a perfect antireflection coating is on both devices. The optical power on the diodes is 2 (uW) at a wavelength of 500 (nm). For the pn-junction photodiode, the length of the p-type side is 0.5 (m) and the minority carrier diffusion length on the p-type side is 200 (nm). The depletion width is 2.5 (m), and on the n-type side the minority carrier diffusion length is 7 (um). For the Schottky junction, the depletion width is W = 2.5 (m). For both diodes, the photocurrent can be calculated using: [e(lpLe) e(lp+W+Ln)] Iph = qni T Po hv a. What is the photocurrent from the pn-junction photodiode? b. What is the responsivity of the pn-junction photodiode? C. What is the photocurrent from the Schottky junction photodiode? d. What is the responsivity of the Schottky junction photodiode?

Step by Step Solution

3.40 Rating (156 Votes )

There are 3 Steps involved in it

Step: 1

Solution Iph qnc T Pe exclp Lo tot h hu a x absorption coefficient of the material 10 cm at 50... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Fundamentals Of Solid State Engineering

Authors: Manijeh Razeghi

4th Edition

3319757075, 978-3319757070

More Books

Students also viewed these Electrical Engineering questions

Question

What is Hunds rule coupling?

Answered: 1 week ago