Study of an Indoline-phenothiazine based organic dye for dye-sensitized solar cells

Vijay Challuri^a, Panagiotis Lianos^b, Dimitrios Raptis^b

^aFORTH-ICEHT, P.O. Box 1414, 26504 Patras, Greece

^bDepartment of Chemical Engineering, Hanyang University, Seoul, 133-791, Korea, Republic of

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, Panagiotis Lianos, 299
Publication date: 5th February 2015

Dye-sensitized solar cells have received considerable attention because of their satisfactory efficiency and low production cost. In order to improve their performance and increase the commercial attractiveness, one strategy is to replace Ruthenium dyes by cheap, colorful, stable and highly efficient organic dyes. The donor-π-acceptor (D-π-A) configuration is mainstream in the design of organic dyes by appropriate modification of the intramolecular charge transfer character^1-2. In the present work, we synthesized an Indoline-phenothiazine based organic sensitizer VG12 for application in dye sensitized solar cells. The insertion of Indoline moiety to the phenothiazine unit was monitored by its optical and electrochemical properties. The addition of Indoline moiety shows significant influence on solar cells performance leading to relatively high efficiency of 7.20 % compared with the traditional Ru sensitizer N719 efficiency of 9.26 %. The photo physical characterization reveals that the attached Indoline and bulky alkyl chain phenothiazine can effectively prevent aggregation of the dye molecules on TiO₂ and suppress charge recombination Acknowledgement. The present work was supported by the project 11SYN_7_298, implemented under the Act "COOPERATION 2011 - Partnerships of Production and Research Institutions in Focused Research and Technology" of the Operational Programmes “Competitiveness and Entrepreneurship (EPAN II)” and “Regions in Transmission (NSFR 2007-13)”.
Figure 1. I-V curves of DSSC containing VG12 organic dye compared with N719 and chemical structure of the dye
[1] Haid, S. ; Marszalek, M. ; Mishra, A. ; Wielopolski, M. ; Teuscher, J. ; Moser, J. -E. ; Humphry-Baker, R. ; Zakeeruddin, S. M. ; Grδtzel, M. ; Bδuerle, PHaid, S. Et al. Adv. Funct. Mater., 2012, 22, 1291–1302 (2012). [2] Hagfeldt, A, ; Boschloo, G, ; Sun, L.C, ; Kloo, L &, Pettersson, H. Chem. Rev. 2010, 110,6595-6663. (2010).

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.