Jump to main content
Jump to site search

Issue 30, 2017
Previous Article Next Article

Muscovite mica as a growth template of PC61BM crystallites for organic photovoltaics

Author affiliations

Abstract

Controlling the microscopic organization of active components is crucial for the performance of organic photovoltaic (OPV) cells. In this work, (001) muscovite mica was used as a growth template to study the formation of PC61BM crystallites in the active layer structure of OPV cells. The structures were spin-coated from a PC61BM : P3HT solution and subsequently annealed. The parameter range to produce layers with high surface density of (sub)micrometer sized PC61BM crystallites was significantly larger for mica than for other substrates. The enhanced PC61BM nucleation is attributed to an epitaxial relation between the mica surface and PC61BM, which was found to crystallise in a hexagonal crystal structure. Through a float-off procedure, the active layer was transferred from the mica substrate to a conductive substrate, which formed the basis of the transferred inverted solar cell. A power conversion efficiency of 2.1% was obtained for this transferred device, which with a 22% higher short-circuit current density outperforms its conventional counterpart that was directly produced on the conductive substrate. A set-up for simultaneous laser beam induced current (LBIC) and surface reflection analysis revealed that the increased current density originates from large circular areas with a radius of about 10 μm around the PC61BM crystallites.

Graphical abstract: Muscovite mica as a growth template of PC61BM crystallites for organic photovoltaics

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Dec 2016, accepted on 20 Jun 2017 and first published on 27 Jun 2017


Article type: Paper
DOI: 10.1039/C6CE02492K
Citation: CrystEngComm, 2017,19, 4424-4436
  •   Request permissions

    Muscovite mica as a growth template of PC61BM crystallites for organic photovoltaics

    J. Feenstra, M. van Eerden, A. K. Lemmens, W. de Poel, P. H. J. Kouwer, A. E. Rowan and J. J. Schermer, CrystEngComm, 2017, 19, 4424
    DOI: 10.1039/C6CE02492K

Search articles by author

Spotlight

Advertisements