TY - JOUR
T1 - Improved Performance of Perylene-Based Photovoltaic Cells Using Polyisocyanopeptide Arrays
AU - Foster, Sam
AU - Finlayson, Christopher Edward
AU - Keivanidis, Panagiotis E.
AU - Huang, Ya-shih
AU - Hwang, Inchan
AU - Friend, Richard H.
AU - Otten, Matthijs B. J.
AU - Lu, Li-ping
AU - Schwartz, Erik
AU - Nolte, Roeland J. M.
AU - Rowan, Alan E.
PY - 2009/1/13
Y1 - 2009/1/13
N2 - Photovoltaic devices incorporating perylene-substituted polyisocyanide materials have been demonstrated, using blend systems with polythiophene- and polyfluorene-based conjugated polymers. Prototypical structures with nominal (1:1) blend weight ratios of the polyisocyanide with poly(3-hexylthiophene) (P3HT) and poly(9,9-dioctylfluorene-co-bis(N,N-(4-butylphenyl))-bis(N,N-phenyl)-1,4-phenyldiamine) (PFB) readily showed an order of magnitude improvement in power conversion efficiency, as compared to analogous blend architectures using a perylene (PDI) monomer, whereas the performance of strongly phase-separated F8BT (poly(9,9- dioctylfluorene-co-benzothidiazole) blend devices showed no such improvement. We propose that the use of polyisocyanide chains as a molecular template offers a method by which the morphology and connectivity of photovoltaic blends can be modified and enhanced.
AB - Photovoltaic devices incorporating perylene-substituted polyisocyanide materials have been demonstrated, using blend systems with polythiophene- and polyfluorene-based conjugated polymers. Prototypical structures with nominal (1:1) blend weight ratios of the polyisocyanide with poly(3-hexylthiophene) (P3HT) and poly(9,9-dioctylfluorene-co-bis(N,N-(4-butylphenyl))-bis(N,N-phenyl)-1,4-phenyldiamine) (PFB) readily showed an order of magnitude improvement in power conversion efficiency, as compared to analogous blend architectures using a perylene (PDI) monomer, whereas the performance of strongly phase-separated F8BT (poly(9,9- dioctylfluorene-co-benzothidiazole) blend devices showed no such improvement. We propose that the use of polyisocyanide chains as a molecular template offers a method by which the morphology and connectivity of photovoltaic blends can be modified and enhanced.
UR - http://hdl.handle.net/2160/8801
U2 - 10.1021/ma801959w
DO - 10.1021/ma801959w
M3 - Article
SN - 0024-9297
VL - 42
SP - 2023
EP - 2030
JO - Macromolecules
JF - Macromolecules
IS - 6
ER -