BibTex format
@article{Kirchartz:2011:10.1103/PhysRevB.83.115209,
author = {Kirchartz, T and Pieters, BE and Kirkpatrick, J and Rau, U and Nelson, J},
doi = {10.1103/PhysRevB.83.115209},
journal = {PHYSICAL REVIEW B},
title = {Recombination via tail states in polythiophene: fullerene solar cells},
url = {http://dx.doi.org/10.1103/PhysRevB.83.115209},
volume = {83},
year = {2011}
}