Charge carrier transport properties in ternary Si-PCPDTBT:P3HT:PCBM solar cells

Važgėla, Julius; Stephen, Meera; Juška, G.; Genevičius, K.; Arlauskas, K.

doi:10.3952/physics.v57i1.3454

Cited by 3 publications

(2 citation statements)

References 15 publications

(19 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As well electrochemical analysis, that provides the values of oxidation/reduction obtained by cyclic voltammetry (CV), are efficient in providing values that allow estimating the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO). Due to these properties that can be monitored and improved using distinct deposition techniques, these materials are widely used in photoconductive applications [20,21].…”

Section: Introductionmentioning

confidence: 99%

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

Shiino

Pelosi

Cioffi

et al. 2017

J. of Materi Eng and Perform

View full text Add to dashboard Cite

Low-bandgap organic polymers, poly[(4,4 bis(2 ethylhexyl)cyclopenta [2,1 b:3,4 b′]dithiophene) 2,6 diyl al (2,1,3 benzothiadiazole) 4,7 diyl](PCPDTBT), and poly [(4,4′ dioctyldithieno[3,2 b:2′,3′d] silol 2,6 diyl) alt (2,1,3 benzothiadiazole) 4,7 diyl)], (Si-PCPDTBT) were analyzed at the air-water interface forming a Langmuir monolayer. In order to form stable monolayers and to transfer to solid supports, amphiphilic molecules of stearic acid (SA) were mixed with them. For the pristine polymers, the floating monolayers were transferred onto solid substrates via the Langmuir-Schaefer (LS) technique. Surface pressure-area isotherms and compressibility modulus curves demonstrated that the SA incorporation to the polymers at the air-water interface modified the rheological properties of the Langmuir films, since the films became less compressible at higher pressures and there is clear conformational reorganization taking place at intermediary pressures. The UV-Vis absorption also depicted the changes on the overall film morphology by the shift on the maximum absorption bands, and along with cyclic voltammetry curves the absorption spectra made it possible to estimate the energy diagrams for the polymers. Photoconductivity effects were observed for all the sample, among which the pristine polymers fabricated by LS showed better results, suggesting that the organization provided by the Langmuir-Blodgett (LB) technique was not enough to overcome the insulating characteristic of the SA molecules in this specific configuration.

show abstract

Section: Introductionmentioning

confidence: 99%

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

Shiino

Pelosi

Cioffi

et al. 2017

J. of Materi Eng and Perform

View full text Add to dashboard Cite

show abstract

“…The process of drying up a drop of solutions attracts the attention of physicists and technologists as a natural model of a self-organizing system in which the variation in the type of a solute or solvent, in substrate type and its initial thermodynamic parameters leads to interesting physical phenomena taking place [31][32][33][34]. The interest is determined also by the need for improving the technologies associated with these processes, for example, lowcost synthesis of organic solar cells [35,36], as an auxiliary criterion in medical diagnostics [37][38][39], as a new direct-writing printing technique by applying paint coatings on various surfaces [40,41], as a technique to fabricate ordered arrays of structures in nanosphere lithography [42,43].…”

Section: Introductionmentioning

confidence: 99%

The formation of self-assembled structures of C₆₀ in solution and in the volume of an evaporating drop of a colloidal solution

Makhmanov¹,

Kokhkharov²,

Bakhramov³

et al. 2020

Lith. J. Phys.

View full text Add to dashboard Cite

The results of experiments on the self-aggregation of C60 fullerene molecules both inside a two-component solvent (xylene/tetrahydrofuran) and in the volume of an evaporating drop of C60 colloidal solution on a flat substrate surface are presented. The investigations of C60 solutions using dynamic light scattering, transmission electron microscopy and UV–Vis absorption spectroscopy methods revealed the possibility of synthesis of fractal nanoaggregates with a diameter of up to ~135 nm at low concentrations of C60 in the solutions. The final geometric dimensions of C60 nanoaggregates were determined by the initial concentration of fullerene in the solvent medium. Using the scanning electron microscopy method, we have shown that in an open dissipative system – in the volume of an evaporating droplet of the colloidal solution of fullerene C60 sessile on the surface of a flat glass substrate, large quasispherical nanoaggregates with an average diameter of ~380–800 nm are formed. The physical features and regularities that characterize the processes of self-aggregation of fullerene particles in the volume of a drying drop were determined.

show abstract

Molecular organization relationship of low-bandgap polymers at the air-water interface and in solid films

Oliveira

Silva

Braunger

et al. 2018

Journal of Molecular Liquids

View full text Add to dashboard Cite

Low-bandgap organic polymers, poly [(4,4 bis(2 ethylhexyl)cyclopenta [2,1 b:3,4 b′]dithiophene) 2,6 diyl al (2,1,3 benzothiadiazole) 4,7 diyl](PCPDTBT), and poly [(4,4′ dioctyldithieno[3,2 b:2′,3′d] silol 2,6 diyl) alt (2,1,3 benzothiadiazole) 4,7 diyl)], (Si-PCPDTBT) were analyzed at the air-water interface forming a Langmuir monolayer. In order to form stable monolayers and to transfer to solid supports, amphiphilic molecules of stearic acid (SA) were mixed with them. For the pristine polymers, the floating monolayers were transferred onto solid substrates via the Langmuir-Schaefer (LS) technique. Surface pressure-area isotherms and compressibility modulus curves demonstrated that the SA incorporation to the polymers at the air-water interface modified the rheological properties of the Langmuir films, since the films became less compressible at higher pressures and there is clear conformational reorganization taking place at intermediary pressures. The UV-Vis absorption also depicted the changes on the overall film morphology by the shift on the maximum absorption bands, and along with cyclic voltammetry curves the absorption spectra made it possible to estimate the energy diagrams for the polymers. Photoconductivity effects were observed for all the sample, among which the pristine polymers fabricated by LS showed better results, suggesting that the organization provided by the Langmuir-Blodgett (LB) technique was not enough to overcome the insulating characteristic of the SA molecules in this specific configuration.

show abstract

Charge carrier transport properties in ternary Si-PCPDTBT:P3HT:PCBM solar cells

Cited by 3 publications

References 15 publications

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

The formation of self-assembled structures of C₆₀ in solution and in the volume of an evaporating drop of a colloidal solution

Molecular organization relationship of low-bandgap polymers at the air-water interface and in solid films

Contact Info

Product

Resources

About

Charge carrier transport properties in ternary Si-PCPDTBT:P3HT:PCBM solar cells

Cited by 3 publications

References 15 publications

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

The Role of Stitch Yarn on the Delamination Resistance in Non-crimp Fabric: Chemical and Physical Interpretation

The formation of self-assembled structures of C60 in solution and in the volume of an evaporating drop of a colloidal solution

Molecular organization relationship of low-bandgap polymers at the air-water interface and in solid films

Contact Info

Product

Resources

About

The formation of self-assembled structures of C₆₀ in solution and in the volume of an evaporating drop of a colloidal solution