A significant improvement of luminance vs current density efficiency of a BioLED

Grykien, Remigiusz; Luszczynska, Beata; Glowacki, Ireneusz; Ulański, Jacek; Kajzar, F.; Zgârian, Roxana Gabriela; Rău, Ileana

doi:10.1016/j.optmat.2014.01.018

Cited by 26 publications

(16 citation statements)

References 46 publications

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“…In Fig. 6c with half-width about 80 nm [38]. Similar emission band with a 516 maximum at 530 nm was also recorded for PLEDs in which emis-517 sion layer was formed from a solution of PVK and Ir(ppy) 3 in 518 chlorobenzene [39].…”

supporting

confidence: 68%

“…The effect is caused by the interaction 37 of trapped carriers and randomly oriented high permanent dipoles of Ir(ppy) 3 . In addition, the 38 experiments of spectrally resolved TL (SRTL) provide evidence that the presence of the dopant creates 39 a new channel of energy transfer. Even at concentration of 1 wt% of Ir(ppy) 3 , these molecules act as 40 emission centres which effectively compete with other centres of radiative recombination present in 41 PVK and PVK/PBD systems.…”

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confidence: 99%

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The impact of 1 wt% of Ir(ppy) 3 on trapping sites and radiative recombination centres in PVK and PVK/PBD blend seen by thermoluminescence

Glowacki

Szamel

2015

Organic Electronics

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confidence: 68%

mentioning

confidence: 99%

The impact of 1 wt% of Ir(ppy) 3 on trapping sites and radiative recombination centres in PVK and PVK/PBD blend seen by thermoluminescence

Glowacki

Szamel

2015

Organic Electronics

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“…24 In this report we describe new five-ring donor-acceptor-donor Electrochemical determination of the redox properties of these new semiconductors is of crucial importance in view of the fact that some of them show strong electroluminescence and can be used as components of light emitting diodes with tunable colors . 25 Moreover, they readily undergo oxidative, electrochemical polymerization, yielding macromolecular compounds which show very interesting UV-Vis-NIR and EPR spectroelectrochemical response. The experimental findings reported here are theoretically supported by DFT calculations.…”

Section: Introductionmentioning

confidence: 99%

Symmetrically Disubstituted Bithiophene Derivatives of 1,3,4-Oxadiazole, 1,3,4-Thiadiazole, and 1,2,4-Triazole – Spectroscopic, Electrochemical, and Spectroelectrochemical Properties

et al. 2014

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Electrochemical and spectroelectrochemical properties of a series of new penta-ring donor -acceptor compounds, comprising 1,3,4-oxadiazole, 1,3,4-thiadiazole and 1,2,4-triazole central ring, symmetrically connected to substituted bithiophenes, were investigated. Aromaticity and electrophilic -nucleophilic traits of the aza-heterocyclic units, fostering inductive and resonance effects that translate to conjugation enhancement and electron (de)localization, were found a major factor determining the key electron properties of ionization potential (IP) and electron affinity (EA) of these molecules. Replacing the alkyl thiophene substituent for an alkoxy one, afforded certain control over the two parameters as well. All studied compounds were found to undergo electrochemical polymerization giving p and n-dopable products, featuring good electrochemical reversibility of their oxidative doping process, as demonstrated by cyclic voltammetry and UV-Vis-NIR, EPR spectroelectrochemistry. While electropolymerisation of entities differing in the heterodiazole unit was found to conserve the EA value, the IP parameter of polymerisation products was found to decrease by 0.6 to 0.7 eV affording an asymmetric narrowing of the frontier energy levels gap. Aided by quantum chemical computations, the effects of structure tailoring of the investigated systems are rationalized, pointing to conscious ways of shaping the electronic properties of thiophene class polymers using synthetically convenient heterodiazole π-conjugated units.

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“…Among the various polymers, the DNA and the nucleic acid bases were explored as hole blocking layers (HBL) or effective electron blocking layers (EBL) in Bio Organic light-emitting diodes (BioLEDs) [42][43][44][45], which enhanced the blue and green light emission effectively. As shown in Figure 6, Hagen et al [46] demonstrated that the BioLEDs show a maximum luminous efficiency of about 8 and 1 cdA −1 , respectively.…”

Section: Dna For Other Optical Electronic Devicesmentioning

confidence: 99%

DNA as Functional Material in Organic-Based Electronics

Liang

Wang

et al. 2018

Applied Sciences

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Abstract:Recently, biological materials such as DNA molecules, proteins, and albumen have been extensively investigated for various applications, as they are environmentally friendly and exhibit novel optical and electronic properties. Especially, over the last decades, DNA-lipid complex have been frequently reported as components of optical electronic devices. In this mini-review, the physicochemical performance of DNA-lipid complex is introduced, and then the related research progress in electronic devices such as organic thin film transistors and other optical-electrical devices are discussed. Finally, the challenges and prospects of other possible applications are also presented.

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A significant improvement of luminance vs current density efficiency of a BioLED

Cited by 26 publications

References 46 publications

The impact of 1 wt% of Ir(ppy) 3 on trapping sites and radiative recombination centres in PVK and PVK/PBD blend seen by thermoluminescence

The impact of 1 wt% of Ir(ppy) 3 on trapping sites and radiative recombination centres in PVK and PVK/PBD blend seen by thermoluminescence

Symmetrically Disubstituted Bithiophene Derivatives of 1,3,4-Oxadiazole, 1,3,4-Thiadiazole, and 1,2,4-Triazole – Spectroscopic, Electrochemical, and Spectroelectrochemical Properties

DNA as Functional Material in Organic-Based Electronics

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