MAPLE prepared heterostructures with arylene based polymer active layer for photovoltaic applications

Stanculescu, Florin; Rasoga, Oana; Catargiu, Ana-Maria; Vacareanu, Loredana; Socol, Marcela; Breazu, C.; Preda, N.; Socol, G.; Stănculescu, Anca

doi:10.1016/j.apsusc.2014.11.146

Cited by 16 publications

(15 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite recent advancement, conjugated polymers, which are well known as active materials in various photovoltaic [ 1 , 2 ] and electroluminescence [ 3 , 4 , 5 ] devices, continue to inherit two major problems, namely poor stability and low luminance efficiency [ 6 , 7 ]. The main reason for the former lies on photo-oxidation, while the latter is closely associated with low charge carrier mobility and high-energy barrier for its injection.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Optoelectronic Properties of PFO/Fluorol 7GA Hybrid Light Emitting Diodes via Additions of TiO2 Nanoparticles

2016

View full text Add to dashboard Cite

Abstract:The effect of TiO 2 nanoparticle (NP) content on the improvement of poly(9,9 -di-noctylfluorenyl-2,7-diyl) (PFO)/Fluorol 7GA organic light emitting diode (OLED) performance is demonstrated here. The PFO/Fluorol 7GA blend with specific ratios of TiO 2 NPs was prepared via a solution blending method before being spin-coated onto an indium tin oxide (ITO) substrate to act as an emissive layer in OLEDs. A thin aluminum layer as top electrode was deposited onto the emissive layer using the electron beam chamber. Improvement electron injection from the cathode was achieved upon incorporation of TiO 2 NPs into the PFO/Fluorol 7GA blend, thus producing devices with intense luminance and lower turn-on voltage. The ITO/(PFO/Fluorol 7GA/TiO 2 )/Al OLED device exhibited maximum electroluminescence intensity and luminance at 25 wt % of TiO 2 NPs, while maximum luminance efficiency was achieved with 15 wt % TiO 2 NP content. In addition, this work proved that the performance of the devices was strongly affected by the surface morphology, which in turn depended on the TiO 2 NP content.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced Optoelectronic Properties of PFO/Fluorol 7GA Hybrid Light Emitting Diodes via Additions of TiO2 Nanoparticles

2016

View full text Add to dashboard Cite

show abstract

“…The chloroform was used to obtain a target with 3 g/l concentration. We have deposited thin films on ITO, ITO covered with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and Si substrates in the following experimental conditions: 250 mJ/cm 2 laser fluence and 30,000 laser pulses [84]. The UV-VIS spectra (Figure 22a) and (b) of the organic film deposited by MAPLE were given in comparison with drop-cast realized films on glass substrate.…”

Section: Polymers Based On Arylene Compoundsmentioning

confidence: 99%

Laser Prepared Thin Films for Optoelectronic Applications

Socol¹,

Socol²,

Preda³

et al. 2017

Nanoscaled Films and Layers

View full text Add to dashboard Cite

Laser techniques such as pulsed laser deposition, combinatorial pulsed laser deposition, and matrix-assisted pulsed laser evaporation were used to deposit thin films for optoelectronic applications. High-quality transparent conductor oxide films ITO, AZO, and IZO were deposited on polyethylene terephthalate by PLD, an important experimental parameter being the target-substrate distance. The TCO films present a high transparency (>95%) and a reduced electrical resistivity (5 × 10 −4 Ωcm) characteristics very useful for their integration in the flexible electronics. In x Zn 1−x O films with a compositional library were obtained by CPLD. These films are featured by a high optical transmission (>95%), the lowest resistivity (8.6 × 10 −4 Ωcm) being observed for an indium content of about 44-49 at.%. Organic heterostructures based on arylenevinylene oligomers (P78 and P13) or arylene polymers (AMC16 and AMC22) were obtained by MAPLE. In the case of ITO/P78/Alq3/Al heterostructures, a higher current value is obtained when the film thickness increases. Also, a photovoltaic effect was observed for heterostructures based on AMC16 or AMC22 deposited on ITO covered by a thin layer of PEDOT:PSS. Due to their optical and electrical properties, such organic heterostructures can be interesting for the organic photovoltaic cells (OPV) applications.

show abstract

“…Laser-processing technique, i.e., Matrix-Assisted Pulsed Laser Evaporation (MAPLE) is a relatively new method being developed in the late 1990s by the US Naval Research Laboratory for processing organic compounds (especially polymers) layers with the preservation of their chemical structure during the deposition [ 59 ]. Thus, using small quantities of material (typically below 5 wt%), MAPLE allows the deposition of organic or hybrid layers for OPV [ 60 , 61 , 62 , 63 ] or HPV [ 44 , 64 , 65 ], respectively. Compared to the pulsed laser deposition (PLD), a technique employing a solid target obtained from pressed powder or pellets, MAPLE involves a frozen target prepared from the material that is intended to be deposit as thin film and a suitable solvent, used as matrix [ 66 , 67 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Nanocomposite Thin Films for Photovoltaic Applications: A Review

Socol

Preda

2021

Nanomaterials

View full text Add to dashboard Cite

Continuing growth in global energy consumption and the growing concerns regarding climate change and environmental pollution are the strongest drivers of renewable energy deployment. Solar energy is the most abundant and cleanest renewable energy source available. Nowadays, photovoltaic technologies can be regarded as viable pathways to provide sustainable energy generation, the achievement attained in designing nanomaterials with tunable properties and the progress made in the production processes having a major impact in their development. Solar cells involving hybrid nanocomposite layers have, lately, received extensive research attention due to the possibility to combine the advantages derived from the properties of both components: flexibility and processability from the organic part and stability and optoelectronics features from the inorganic part. Thus, this review provides a synopsis on hybrid solar cells developed in the last decade which involve composite layers deposited by spin-coating, the most used deposition method, and matrix-assisted pulsed laser evaporation, a relatively new deposition technique. The overview is focused on the hybrid nanocomposite films that can use conducting polymers and metal phthalocyanines as p-type materials, fullerene derivatives and non-fullerene compounds as n-type materials, and semiconductor nanostructures based on metal oxide, chalcogenides, and silicon. A survey regarding the influence of various factors on the hybrid solar cell efficiency is given in order to identify new strategies for enhancing the device performance in the upcoming years.

show abstract

MAPLE prepared heterostructures with arylene based polymer active layer for photovoltaic applications

Cited by 16 publications

References 26 publications

Enhanced Optoelectronic Properties of PFO/Fluorol 7GA Hybrid Light Emitting Diodes via Additions of TiO2 Nanoparticles

Enhanced Optoelectronic Properties of PFO/Fluorol 7GA Hybrid Light Emitting Diodes via Additions of TiO2 Nanoparticles

Laser Prepared Thin Films for Optoelectronic Applications

Hybrid Nanocomposite Thin Films for Photovoltaic Applications: A Review

Contact Info

Product

Resources

About