The influence of transport layers on the photodegradation stability of polymer solar cell structures
-
Petra Možíšková
and
Martin Weiter
Abstract
A light exposure degradation study of electrically active polymers – high-glass-transition-temperature poly(1,4-phenylenevinylene) (Tg-PPV); poly(3-hexylthiophene-2,5-diyl) (P3HT); and poly(2-methoxy-5-(3′-7′- dimethyloctyloxy)-1,4-phenylenevinylene) (MDMO-PPV) – in pure form and blends with [6,6]-phenyl C61-butyric acid methyl ester (PCBM) was conducted to assess the influence of the employed transport layers on the materials’ photodegradation stability. Devices were prepared on quartz glass and silicon (Si) substrates with a transport layer prepared from poly(3,4-ethylenedioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS) or titanium dioxide (TiO2). Photodegradation processes in ambient air demonstrated that the polymers were thermally stable in the dark; thus, the material deteriorations not only were caused by thermal stress, but also from light-induced processes. Degradation processes of pure polymers may be considered as fast – in the order of hours – but retardable by blending of polymers with PCBM. The deposition of polymer blends on an additional layer of PEDOT:PSS or TiO2 revealed that the polymer blends studied in this work (except for P3HT) presented higher stability against polymer chain scission when deposited onto the TiO2 layer. Kinetic analysis undertaken during this work revealed that the photodegradation processes were followed by two degradation steps. Degradation kinetics were evaluated according to a Perrin-like model for absorption assessments and according to simple exponential for emission measurements.
Acknowledgments
This work was supported by Czech Science Foundation project No. P205/10/2280 and by FP7 project DEPHOTEX 7E09061.
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©2014 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Frontmatter
- Original articles
- Electronic transport in organic memories of chitosan with gold nanoparticles
- The influence of transport layers on the photodegradation stability of polymer solar cell structures
- Synthesis and properties of acrylamide 2-acrylamido-2-methypropane sulfonic acid sodium styrene sulfonate N-vinyl pyrrolidone quadripolymer and its reduction of drilling fluid filtration at high temperature and high salinity
- Synthesis and characterization of a series of novel amino β-cyclodextrin-conjugated poly(ε-lysine) derivatives
- Cellulose fibre-cellulose acetate hybrid composites with nanosilica
- Assessment and influence of internal rigid core on the contact parameters for soft hemispherical fingertips
- Properties of high temperature resistance and salt tolerance drilling fluids incorporating acrylamide/2-acrylamido-2-methyl-1-propane sulfonic acid/N-vinylpyrrolidone/dimethyl diallyl ammonium chloride quadripolymer as fluid loss additives
- Thermotropic overheating protection glazings: effect of functional additives and processing conditions on the overheating protection performance
- Experimental rapid surface heating by induction for injection molding of large LCD TV frames
- Effect of reaction conditions on the thermal stability of polystyrene grafted oil palm empty fruit bunch (OPEFB) fiber
- Compatibilization of polyamide 6/poly(2,6-dimethyl-1,4-phenylene oxide) blends by poly(styrene-co-maleic anhydride)
Articles in the same Issue
- Frontmatter
- Original articles
- Electronic transport in organic memories of chitosan with gold nanoparticles
- The influence of transport layers on the photodegradation stability of polymer solar cell structures
- Synthesis and properties of acrylamide 2-acrylamido-2-methypropane sulfonic acid sodium styrene sulfonate N-vinyl pyrrolidone quadripolymer and its reduction of drilling fluid filtration at high temperature and high salinity
- Synthesis and characterization of a series of novel amino β-cyclodextrin-conjugated poly(ε-lysine) derivatives
- Cellulose fibre-cellulose acetate hybrid composites with nanosilica
- Assessment and influence of internal rigid core on the contact parameters for soft hemispherical fingertips
- Properties of high temperature resistance and salt tolerance drilling fluids incorporating acrylamide/2-acrylamido-2-methyl-1-propane sulfonic acid/N-vinylpyrrolidone/dimethyl diallyl ammonium chloride quadripolymer as fluid loss additives
- Thermotropic overheating protection glazings: effect of functional additives and processing conditions on the overheating protection performance
- Experimental rapid surface heating by induction for injection molding of large LCD TV frames
- Effect of reaction conditions on the thermal stability of polystyrene grafted oil palm empty fruit bunch (OPEFB) fiber
- Compatibilization of polyamide 6/poly(2,6-dimethyl-1,4-phenylene oxide) blends by poly(styrene-co-maleic anhydride)
