Photo-Physical Properties of Ordered Polymer Films and Heterostructures with PCBM

Oleksandr Boiko^a, Vidmantas Gulbinas^a

^aDepartment of Molecular Compound Physics, Center for Physical Science and Technology, Savanoriu pr. 231, Vilnius, LT-02300, Lithuania

International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics 2015 (HOPV15)

Roma, Italy, 2015 May 11th - 13th

Organizer: Filippo De Angelis

Poster, Oleksandr Boiko, 429
Publication date: 5th February 2015

We present results of study of absorption and fluorescence properties of highly ordered polymeric films and bilayer (or bulk) heterostructures with [6,6]-phenyl‑C61-butyric acid methyl ester (PCBM). As polymer we use poly-3-hexyl thiophene (P3HT) and poly[2,6-(4,4-bis-(2-ethylhexyl)- 4H-cyclopenta [2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)] (PCPDTBT) The polymer films were prepared by spin-coating method and aligned by manually rubbing with velvet cloth on a hotplate. The photo-physical properties have been investigated by means of steady-state and time-resolved absorption and fluorescence spectroscopy. The films showed a large in-plane anisotropy, which reveals high degree of orientation of polymer films. The investigation of aligned film can improve our understanding of energetic structures of interfacial charge transfer states due to their play important role in generation of charge generation and recombination in organic solar cells. The peculiarities of absorption and fluorescence spectra in aligned polymer films and heterostructures are discussed. The authors acknowledge support from the Research Council of Lithuania – Project No. VP1-3.1-SMM-01-V-02-004 (Postdoctoral Fellowship).

nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.

MATSUS

Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.

International Conference on Hybrid and Organic Photovoltaics

International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.

Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics

The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.

International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics

The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.