Special Issue "Organic Light Emitting Diodes II"
Deadline for manuscript submissions: 31 July 2019
Organic light-emitting diodes (OLEDs) are disrupting the display and lighting markets, thanks to their notable characteristics, such as being planar, soft, transparent, fully dimmable, flexible, spectrum tailorable, natural light-style, human-friendly, energy saving, etc. Increasing scientific and technological efforts have been made, not only to stimulate commercialization, but also provide better display and illumination products to the world. Still, there are more blanks to fill with a more competitive OLED technology from lighting perspectives. Hence, we are hoping to publish a Special Issue to gather significant contributions from OLED researchers and experts. This Special Issue aims to offer a platform for latest design strategy of organic molecules, synthesis processes, fabrication routes of OLED devices, and approaches for high efficiency. Manuscripts may be, but are not limited to, the following topics: Efficient OLED materials, efficient OLED devices, the status of white light or monochromes in PM-OLES, AM-OLED, and OLEDs for signage, tandem OLEDs, PIN OLEDs, blue OLEDs, transparent OLEDs, transparent/flexible/wearable OLEDs, printable OLEDs, approaches for long lifetime OELDs, etc.
Prof. Jwo-Huei Jou
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Designing and synthesis of efficient organic molecules
- TADF materials
- Approaches of fabricating highly efficient and long lifespan OLED
- Flexible and wearable OLEDs
- Designing and fabrication of natural-light style organic light emitting diodes
- Transparent and conductive oxide material as an efficient anode
- Current status of OLED display and lighting panels
- Light extraction techniques
- Advanced exciplex systems
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
1. Author: Yukiko Iwasaki
Tentative title: Effect of Host Substituents on the Color Purity of Green PHOLED using Platinum Complex Emitter
Tentative abstract: Highly efficient, operationally stable and pure-color organic light-emitting diodes (OLEDs) are of great significance for practical wide-color-gamut displays. In recent years, emitters achieving high color purity have been obtained by employing a planar and rigid molecular structure. We have demonstrated that an efficient pure green phosphorescent OLED (PHOLED) by employing both a platinum complex and a top-emitting structure. Toward the development of pure green PHOLEDs with high operational stability, it is essential to clarify the effect of host materials on the emission spectrum of the platinum complex. This is because the emission spectrum of the platinum complex in a TADF material exhibits a considerably broad emission spectrum, although TADF materials have been reported to be suitable hosts for efficient and stable PHOLEDs. In this study, we investigated the origin of this spectral change by evaluating the photoluminescence of a platinum complex in several hosts with different substituents. From these results, we discuss the design strategy of host materials suitable for maintaining the spectrum shape of platinum complex.
2. Author: Yu Duan
Affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun 130012, P. R. China
Title：white light-emitting devices based on perovskite and organic materials via evaporation technology
Abstract：As a new type of photoelectric material, perovskite material has the advantages of high crystallinity, high carrier mobility, low exciton binding energy, high quantum efficiency, wide absorption spectrum and solution process ability. These advantages make perovskite materials are widely used in thin film solar cells and electroluminescent devices, and have attracted much attention in the field of materials research.In this paper, We doped polymer PAN into CsPbBr2.5I0.5 perovskite precursor solution, and high coverage and average PAN: CsPbBr2.5I0.5 mixed films were obtained by one-step spin-coating method. And we prepared a red perovskite device with the mixed film as the light-emitting layer (the EL peak intensity is located at 680 nm), and the device structure is ITO/Pedot:PSS/PAN:CsPbBr2.5I0.5/TPBi/Liq/Al. The device reached a maximum luminance of 657 cd/m2 at 8V. At the same time, we prepared white PeLED with blue organic material NPB and inorganic perovskite materials CsPbBr2.5I0.5,CsPbBr3 as the light-emitting layer. The device structure is ITO/Pedot:PSS/CsPbBr2.5I0.5/NPB/CsPbBr3/TPBi/Liq/Al, the maximum luminance of the device is 360cd/m2 at 7V,the current efficiency is 0.2cd/A, and the color coordinate of PeLED is (0.31, 0.36). We obtained a ideal white emission, which provides a feasible idea for the development of white perovskite light-emitting devices.