High performance inverted bulk heterojunction solar cells by incorporation of dense, thin ZnO layers made using atmospheric atomic layer deposition

Robert L.Z. Hoye, David Muñoz-Rojas, Diana C. Iza, Kevin P. Musselman, Judith L. MacManus-Driscoll
2013 Solar Energy Materials and Solar Cells  
A thin ZnO ( o 200 nm) film grown by Atmospheric Atomic Layer Deposition (AALD) in a matter of minutes was studied as a hole-blocking layer in poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61buyric acid methyl ester (P3HT:PCBM) based inverted solar cells. These AALD ZnO layers were compact, had a high electron mobility of 3.4+0.1 cm 2 /Vs, had up to 100% transmittance to visible light, and a good wettability for the blend. Despite the very rapid, open atmosphere growth method, the cell
more » ... ce was comparable with some of the best inverted bulk heterojunction P3HT:PCBM cells in the literature. The performance was also maintained after 200 days of storage in air in the dark.
doi:10.1016/j.solmat.2013.04.020 fatcat:q2eeholtire7vghvqviyqqbl54