Electrical behaviour of MEH-PPV based diode and transistor

Reshak, A.H.; Shahimin, M. M.; Juhari, Nurjuliana; Suppiah, Sarveshvaran

doi:10.1016/j.pbiomolbio.2013.09.002

Cited by 24 publications

(8 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although solid-state lasing has yet to be demonstrated in an organic LED, poly[2-methoxy-5-(2 0 -ethylhexyloxy)-pphenylenevinylene] (MEH-PPV) has been proven to be a promising laser dye due to its high fluorescence efficiency in a solution, 5,6 and MEH-PPV doped with graphene oxide has been assessed for applications in organic solar cells owing to its efficient charge transfer and photostability. 14 Usually PPV derivatives with alkoxy groups soluble in organic solvents and high thermal stability and are synthesized using Gilch's approach, wherein R,R-dihalo-p-xylenes are treated with potassium tert-butoxide in organic solvents and then they are treated thermally to yield the conjugated PPV. [8][9][10][11] PPV has also received considerable attention in applications such as light emitting diodes; moreover, PPV has been used as the emissive layer in the first LED polymer 12,13 and field effect transistors.…”

Section: Introductionmentioning

confidence: 99%

“…14 Usually PPV derivatives with alkoxy groups soluble in organic solvents and high thermal stability and are synthesized using Gilch's approach, wherein R,R-dihalo-p-xylenes are treated with potassium tert-butoxide in organic solvents and then they are treated thermally to yield the conjugated PPV. 22 Polymers containing phenylenevinylene (PV) bound to 3,4ethylenedioxythiophene have been studied because of their semiconducting properties; 23 the photovoltaic properties of thiophene and diketopyrrolopyrrole containing PV have also been studied. 11,18,19 Although PPV-based devices suffer from poor absorption and photodegradation, PPV and PPV derivatives (especially MEH-PPV and MDMO-PPV) find frequent application in research cells, 11,20,21 diodes and transistors.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11] PPV has also received considerable attention in applications such as light emitting diodes; moreover, PPV has been used as the emissive layer in the first LED polymer 12,13 and field effect transistors. 14 Usually PPV derivatives with alkoxy groups soluble in organic solvents and high thermal stability and are synthesized using Gilch's approach, wherein R,R-dihalo-p-xylenes are treated with potassium tert-butoxide in organic solvents and then they are treated thermally to yield the conjugated PPV. [15][16][17] MEH-PPV and PPV has been employed as an electron-donor material in organic solar cells.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electronic and structural properties of polymers based on phenylene vinylene and thiophene units. Control of the gap by gradual increases of thiophene moieties

2015

View full text Add to dashboard Cite

Several poly(thiophene) derivatives containing p-phenylenevinylene (PV) as an electron-donor were synthesized using FeCl 3 . PV units are regularly spaced in two, four and eight thiophenyl units across the main chain. PV units and the gradual increase in the number of thiophene units affect the properties of polymers such as poly(3-hexylthiophene), (P3HT). Polymers, labeled as poly(FV1Th), poly(FVBiTh) and poly(FVTeTh) were characterized by FT-IR and UV-Vis spectrometry, elemental analysis, thermal stability (TGA), differential scanning calorimetry (DSC) and cyclic voltammetry (CV). Conjugation increases with increasing thiophene rings in the main chain and the conjugation is higher in polymers that exhibited different optical absorption, effective conjugation, similar intrinsic viscosity, and high thermal stability with a weight loss less than 10% at decomposition temperatures higher than 300 1C (except poly(FVTeTh). DSC showed melting points over 200 1C and the formation of crystalline zones was found in all cases. An increase in the number of thiophene rings in the main chain resulted in a more ordered crystalline molecular structure. Moreover, the polymers presented redox processes at a potential lower than that of P3HT. The Highest Occupied Molecular Orbital (HOMO), Lowest Unoccupied Molecular Orbital (LUMO) and optical band gap (E g ) were measured and the values obtained were compared with those of P3HT. The effect caused by PV units and the increase of thiophenyl units in the chains on HOMO, LUMO, band gap, fusion, crystallinity and TGA is reported. The E g of the monomers was greater than that of P3HT. The results showed that with respect to P3HT, polymers HOMO and LUMO are lower and in some cases by a slight change in E g . The PV effect as an electron donor causes a decrease in the HOMO and LUMO, envisaging them as potential polymers to be studied in organic photocells.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electronic and structural properties of polymers based on phenylene vinylene and thiophene units. Control of the gap by gradual increases of thiophene moieties

2015

View full text Add to dashboard Cite

show abstract

“…PPVs are highly examined. In its unsubstituted form, PPV has been effectively applied in OLEDs and OPVs . The parent PPV lacks solubility and can be processed from a soluble precursor polymer .…”

Section: Introductionmentioning

confidence: 99%

Fourfold Alkoxy‐Substituted [2.2.2]Paracyclophane‐1,9,17‐trienes–ROMP into PPVs with Unusual Topologies

Mäker

Bunz

2014

Macromol. Rapid Commun.

View full text Add to dashboard Cite

The synthesis of two 4,7,12,15-tetrakisalkoxy-substituted [2.2.2]-paracyclophane-1,9,17-trienes and their polymerization employing ring opening metathesis polymerization (ROMP) using Ru-carbenes (third-generation Grubbs catalyst) is reported. Phenylene ethynylene trimers are reduced via a Grignard reagent, followed by an intramolecular McMurry cyclization to give the cyclophenes. The cyclophenes are polymerized into soluble poly(para-phenylene vinylene)s (PPV), which are analyzed in solution by NMR, UV-vis, and fluorescence spectroscopy. They are spin coated into amorphous, fluorescent thin films, and investigated by optical spectroscopy and cyclic voltammetry.

show abstract

“…type of OLET has been reported by Lee et al 8 Recently, it has been reported that the lithium fluoride (LiF) layer was deposited in between the gate and source electrodes of MEH-PPV based OLET. 9 Other groups fabricate the OLET with dielectric or insulator layer to form a depletion region in order to control the amount of charge carrier by varying the gate voltage. [10][11][12][13][14] This kind of structure is known as organic light-emitting field effect transistors (OLEFETs).…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Solution Processed Top-Gate-Type Organic Light-Emitting Transistor

Sarjidan¹,

Jubri²,

Basri³

et al. 2014

Nanosci Nanotechnol Lett

View full text Add to dashboard Cite

Tris(8-hydroxyquinolinato) aluminium (Alq 3 based top-gate-type organic light emitting-transistors (OLETs) have been fabricated by using a simple solution process. The OLET consists of a bulk layer of indium-tin oxide (ITO) and hole injection layer of poly(2,3-dihydrothieno-1,4-dioxin)poly(styrenesulfonate) (PEDOT:PSS) as an anode (source), organic electroluminescent layer of Alq 3 and aluminium (Al) as cathode (drain) and gate. A Current-voltage-luminance (J-V-L) characteristic of the OLETs shows that the current density is depended on polarity of gate bias. Initial internal electric field contributes to the charge diffusion between gate and cathode channel. A vice versa characteristic observed for luminance at cathode-anode and gate-anode channels.

show abstract

Electrical behaviour of MEH-PPV based diode and transistor

Cited by 24 publications

References 13 publications

Electronic and structural properties of polymers based on phenylene vinylene and thiophene units. Control of the gap by gradual increases of thiophene moieties

Electronic and structural properties of polymers based on phenylene vinylene and thiophene units. Control of the gap by gradual increases of thiophene moieties

Fourfold Alkoxy‐Substituted [2.2.2]Paracyclophane‐1,9,17‐trienes–ROMP into PPVs with Unusual Topologies

Fabrication and Characterization of Solution Processed Top-Gate-Type Organic Light-Emitting Transistor

Contact Info

Product

Resources

About