10.Photocurrent

10.Photocurrent - 1 Internal quantum efficiency The rate of...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Internal quantum efficiency Internal quantum efficiency The rate of absorption Defining IQE What's this balance equation? Optical generation rate What's this, and what are its units?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 The generation rate The generation rate Generation rate (m -3 s -1 ) How does this curve help in the design of the solar cell?
Background image of page 2
3 Basic design issues resulting Basic design issues resulting from from G G op op (x (x ) ) • How deep should the junction be? • Should the emitter be lightly or heavily doped? • Should the emitter be n- or p -type? • Should the base be thick or thin? • Should the base be n- or p -type? Plan view Cross-section
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 PV power PV power Sections 7.4, 7.5 of course text: 1. Photocurrent 2. Photovoltage 3. Photovoltaic power generation
Background image of page 4
5 Photocurrent Photocurrent • Divide cell into 3 regions: emitter, space-charge, base. • Note new x -axis origin. • Note the surface fields at x=0 and x=B • What is the purpose of these regions, and how are they made?
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 SCR photocurrent SCR photocurrent From our toolbox: What are the BC's for J e ?
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/10/2010 for the course EECE 480 taught by Professor David during the Fall '09 term at UBC.

Page1 / 17

10.Photocurrent - 1 Internal quantum efficiency The rate of...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online