This is the talk presented 1 december 2011 at MRS Boston
This is work done with my colleague Germà Garcia-Belmonte and other collaborators. We describe our view of the basic mechanisms of this type of solar cell. Much of these ideas aim to build a simple and useful model for the BHJ solar cell that is consistent with impedance spectroscopy mesurements. This is a very powerful characterization technique but to use it, we first need to establish how to do and interpret the measurements.
Some people asked to have the talk so here I publish for everybody interested.
Direct observation of internal potential distributions in a bulk heterojunction solar cell
Jongjin Lee, Jaemin Kong, Heejoo Kim, Sung-Oong Kang, and Kwanghee Lee
Appl. Phys. Lett. 99, 243301 (2011)