- #1

dscot

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## Homework Statement

Hi,

I'm trying to show how the band gap energy changes with the radius as Part 2 of this questions asks us to find: http://screencast.com/t/N7R42aS4l

The full solution is here: http://screencast.com/t/y1K3hqOus4H

## Homework Equations

See solution link above.

## The Attempt at a Solution

This question should relatively straightforward and should just be a simple case of inputting the values into the equation given in the link above. I think we also need to pick a radius at set intervals (ie. 1,2,3,4.. nm) for use in the equation. The problem is that I always get 1.42 for my Eg(R) value. I tested my equation and this seems to be due to the value I get being so low that when I add the first term of Eg to it I always end up with that as my final answer.

Any thoughts on what I could be doing wrong?

Thanks

David

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