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Coatings
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Electro-Optical Performance of Organic Thin Films
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Electro-Optical Performance of Organic Thin Films

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Thin Films".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 3557

Special Issue Editor

Prof. Dr. Hong-Gyu Park

E-Mail Website
Guest Editor
Electrical, Electronic & Control Engineering, Changwon National University, 20 Changwondaehak-ro, Uichang-gu, Changwon-si, Gyeongsangnam-do 51140, Korea
Interests: coatings; liquid crystal alignment; smart windows; nanowrinkle
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

To date, extensive research efforts have been devoted to the study of the electro-optical performance of organic thin films. In recent years, there has also been a growing amount of interest in the field of organic semiconducting thin films due to their successful application in electronic and optical devices, such as organic filed effect transistors (OTFT) and organic light emitting diodes (OLED). To evolve the electro-optical device using organic thin films, an organic thin film process and organic thin film characteristic analysis method must be developed along with the development of organic functional materials.

In this Special Issue, we invite authors to contribute with their research papers, communications, letters, and reviews on the Electro-Optical Performance of Organic Thin Films. This Special Issue covers all aspects of studies on electro-optical performance of organic thin films such as LCD/OLED displays, photovoltaics, thin film transistors, sensors, and electrochemistry, from both experimental or/and theoretical viewpoints. In addition, it also covers various topics related to the organic thin film process.

Assist. Prof. Hong-Gyu Park
Guest Editor

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 submissions that pass pre-check are 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. Coatings is an international peer-reviewed open access monthly 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 2600 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.

Keywords

  • organic thin films
  • organic semiconductors
  • organic light emitting diodes
  • solar cells
  • photovoltaic
  • sensors

Published Papers (1 paper)

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Research

14 pages, 5993 KiB  
Article
On-Machine Measurement for Surface Flatness of Transparent and Thin Film in Laser Ablation Process
by HyungTae Kim, Yoon Jae Moon, Heuiseok Kang and Jun Yong Hwang
Coatings 2020, 10(9), 885; https://doi.org/10.3390/coatings10090885 - 14 Sep 2020
Cited by 3 | Viewed by 3107
Abstract
In printed electronics, laser ablation is used to repair defective patterns on transparent, flexible, and thin films, using high-power lasers. The distance between the film surface and laser focus is sensitive to changes as the narrow focus depth of the lens is the [...] Read more.
In printed electronics, laser ablation is used to repair defective patterns on transparent, flexible, and thin films, using high-power lasers. The distance between the film surface and laser focus is sensitive to changes as the narrow focus depth of the lens is the range of tens of microns. However, a film fixed on a conductive vacuum chuck (CVC) is always curved, owing to chucking bending; thus, laser focusing must be locally performed before ablation. Therefore, this study proposes a non-contact measurement method for the surface flatness of a transparent and thin film, to compensate for laser defocusing in a large area. The surface flatness was obtained using camera-focus points on the porous surface of the CVC. The focus points were interpolated to achieve a smooth and continuous surface flatness for chucking bending. A laser distance sensor was used to verify the surface flatness from the proposed method. The surface flatness was used to inspect the printed patterns, and to perform laser ablation on the film. The proposed method is advantageous for large-area laser ablation and is expected to become indispensable for repairing machines in printed electronics. Full article
(This article belongs to the Special Issue Electro-Optical Performance of Organic Thin Films)
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