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How do 10-camphorsulfonic acid, silver or aluminum nanoparticles influence optical, electrochemical, electrochromic and photovoltaic properties of air and thermally stable triphenylamine-based polyazomethine with carbazole moieties?
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SYSNO ASEP 0457463 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title How do 10-camphorsulfonic acid, silver or aluminum nanoparticles influence optical, electrochemical, electrochromic and photovoltaic properties of air and thermally stable triphenylamine-based polyazomethine with carbazole moieties? Author(s) Ivan, A. (PL)
Boharewicz, B. (PL)
Tazbir, I. (PL)
Filapek, M. (PL)
Korona, P.K. (PL)
Wróbel, Piotr (URE-Y)
Stefaniuk, T. (PL)
Ciesielski, A. (PL)
Wojtkiewicz, J. (PL)
Wronkowska, A.A. (PL)
Wronkowski, A. (PL)
Zboromirska-Wnukiewicz, B. (PL)
Grankowska-Ciechanowicz, S. (PL)
Kaminska, M. (PL)
Szoplik, T. (PL)Source Title Electrochimica acta. - : Elsevier - ISSN 0013-4686
Roč. 185, December (2015), s. 198-210Number of pages 13 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords refraction index ; nanoparticles ; bulk heterojunction polymer solar cells Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering Institutional support URE-Y - RVO:67985882 UT WOS 000366018700025 EID SCOPUS 84946204281 DOI 10.1016/j.electacta.2015.10.110 Annotation Organic (10-camphorsulfonic acid, CSA), organic-inorganic (Ag-poly(vinylpyrrolidone), Ag-PVP with 10 and 20 nm size of Ag) or inorganic (Al, 18 nm) compounds were applied as new components of active layer in bulk heterojunction polymer solar cells based on a new polyazomethine (PAZ-Car-TPA) resulting in significant change of optical and electrical properties. Moreover, colloidal Ag (100 nm) and Ag-PVP in aqueous solution (10 nm) were tested as an addition to the hole transporting layer based on PEDOT:PSS in polyazomethine solar cells. CSA added to PAZ-Car-TPA decrease its energy gap from 1.91 to 1.20 eV and causes a significant bathochromic shift of the maximum of absorption band along with the change of the polymer color from yellow to red (electrochromic behavior). Photoluminescence maximum of PAZ-Car-TPA protonated with CSA showed 120 nm redshift from 500 to 620 nm in comparison to undoped PAZ-Car-TPA. HOMO-LUMO of PAZ-Car-TPA and its mixture with CSA were analyzed by cyclic voltammetry and quantum mechanical calculations using Density Functional Theory method. Refraction index and extinction coefficient of PAZ-Car-TPA and its mixtures with PC71BM as well as Ag or Al nanoparticles were investigated taking into consideration various thickness of polymer layer. The power conversion efficiency of the ITO/PEDOT:PSS/PAZ-Car-TPA:PCBM:CSA/Al device was five time higher than that of the device based on PAZ-Car-TPA:PCBM. Such an enhancement was found to be primarily due to the increase of the short-circuit current, suggesting that the charge collection increases upon the incorporation of CSA in the active layer. Moreover, presence of Ag-PVP (20 nm) or Al (18 nm) in device increased short circuit current of the constructed polymer solar cells. Additionally, devices were tested by external quantum efficiency measurements and electrochemical impedance spectroscopy in dark and under illumination Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2016
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