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Polymers
Volume 12
Issue 11
10.3390/polym12112707
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Article

Investigations of the Optical and Thermal Properties of the Pyrazoloquinoline Derivatives and Their Application for OLED Design

by
Gabriela Lewińska
1,*,
Karen Khachatryan
2,
Krzysztof S. Danel
2,
Zoriana Danel
3,
Jerzy Sanetra
4,† and
Konstanty W. Marszałek
1
1
Department of Electronics, Faculty of Computer Science, Electronics and Telecommunications, AGH University of Science and Technology; 30-059 Krakow, Poland
2
Department of Chemistry, Faculty of Food Technology, University of Agriculture in Krakow, 30-149 Krakow, Poland
3
Institute of Physics, Faculty of Materials Science and Physics, Cracow University of Technology, 30-035 Krakow, Poland
4
Institute of Physics, Faculty of Physics of Mathematics and Computer Science, Cracow University of Technology, 30-841 Cracow, Poland
*
Author to whom correspondence should be addressed.
†
The author Jerzy Sanetra is retired.
Polymers 2020, 12(11), 2707; https://doi.org/10.3390/polym12112707
Submission received: 19 October 2020 / Revised: 6 November 2020 / Accepted: 8 November 2020 / Published: 16 November 2020
(This article belongs to the Section Polymer Physics and Theory)
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Abstract

In this study, the photo-optical properties of the series of new 1H-pyrazolo[3,4-b]quinoline derivatives were investigated. Pyrazoloquinoline studies were conducted to explain the electroluminescent effect in organic LEDs. Absorption and photoluminescence spectra for the materials under consideration were examined, and quantum chemical calculations were made. Differential scanning calorimetric and thermogravimetric measurements were carried out for the manufactured materials. The phase situation of the materials was determined, and glassy transitions were detected for three of the investigated materials. Degradation temperatures were obtained. Single-layer luminescent diodes based on the ITO/PEDOT:PSS/active layer/Al scheme were fabricated. Current–voltage and brightness–voltage characteristics of the diodes were determined, ignition voltage was calculated, and electroluminescence types were determined.
Keywords: OLED; pyrazoloquinoline; differential scanning calorimetry; thermogravimetry OLED; pyrazoloquinoline; differential scanning calorimetry; thermogravimetry
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MDPI and ACS Style

Lewińska, G.; Khachatryan, K.; Danel, K.S.; Danel, Z.; Sanetra, J.; Marszałek, K.W. Investigations of the Optical and Thermal Properties of the Pyrazoloquinoline Derivatives and Their Application for OLED Design. Polymers 2020, 12, 2707. https://doi.org/10.3390/polym12112707

AMA Style

Lewińska G, Khachatryan K, Danel KS, Danel Z, Sanetra J, Marszałek KW. Investigations of the Optical and Thermal Properties of the Pyrazoloquinoline Derivatives and Their Application for OLED Design. Polymers. 2020; 12(11):2707. https://doi.org/10.3390/polym12112707

Chicago/Turabian Style

Lewińska, Gabriela, Karen Khachatryan, Krzysztof S. Danel, Zoriana Danel, Jerzy Sanetra, and Konstanty W. Marszałek. 2020. "Investigations of the Optical and Thermal Properties of the Pyrazoloquinoline Derivatives and Their Application for OLED Design" Polymers 12, no. 11: 2707. https://doi.org/10.3390/polym12112707

APA Style

Lewińska, G., Khachatryan, K., Danel, K. S., Danel, Z., Sanetra, J., & Marszałek, K. W. (2020). Investigations of the Optical and Thermal Properties of the Pyrazoloquinoline Derivatives and Their Application for OLED Design. Polymers, 12(11), 2707. https://doi.org/10.3390/polym12112707

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