https://experts.arizona.edu/en/publications/homolumo-alignment-at-ptcdaznpc-and-ptcdaclinpc-heterointerfaces-/fingerprints/
HOMO/LUMO Alignment at PTCDA/ZnPc and PTCDA/ClInPc Heterointerfaces Determined by Combined UPS and...
https://fis.tu-dresden.de/portal/en/publications/effect-of-concentration-gradients-in-znpcc60-bulk-heterojunction-organic-solar-cells(9945f324-589a-44f0-ba7f-c04d885dfc60).html
Effect of concentration gradients in ZnPc:C-60 bulk heterojunction organic solar cells | TU Dresden