Mr. Jung Seob Shim Profile

Jung Seob Shim

at Dankook Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 4 March 2019 Presentation

Fabrication of quantum-dot light-emitting devices using template-assisted self-assembly (Conference Presentation)

Jaewoo Ahn, Jung Seob Shim, Dong Hyun Lee

Proceedings Volume 10929, 109290B (2019) https://doi.org/10.1117/12.2508452

KEYWORDS: Quantum dots, Thin films, Zinc, Glasses, Bioalcohols, Oxygen, Plasma treatment, Spherical lenses, Quantum wells, Zinc oxide

Read Abstract +

In this study, we demonstrate a unique method to fabricate quantum dots light emitting devices(QD-LEDs) using nanoporous templates. Zinc Oxide(ZnO) is spin-coated on ITO(Indium-Tin-Oxide) patterned glass as ETL(Electron-Transport-Layer). Cylinder-forming polystyrene-block-poly(2-vinyl pyridine) copolymer (S2VP) is spin-coated on the ETL layer. To induce phase separation, the thin films of block copolymers (BCPs) are solvent-annealed in vapor of toluene which is a good solvent for polystyrene blocks. As immersed in ethanol that is a selective solvent for P2VP blocks, the surface of BCP thin films is reconstructed and well-ordered nanopores are generated over the whole surface area. Then, the nanoporous templates are successfully fabricated on ETL layer by oxygen plasma treatment. The well-ordered nanopores on ETL can play a role as versatile templates to localize uniform spherical BCP micelles due to surface energy difference and topographical contrast during simple spin-coating process. In addition, well-ordered array of quantum dots(QDs) having hydrophobic surface is obtained by using ZnO layer. Interestingly, it is found that their population in a pore with diameter of about 40nm can be precisely controlled by adjusting the concentrations or the size of QDs as EML(Emissive-Layer). As the QDs have been selectively arranged in hexagonally packed nanopores with regular separation distance of about 80 nm, it is possible to generate extremely high density QDs arrays. Then, HTL(Hole-Transport-Layer), HIL(Hole-Injection-Layer), and Anode are deposited with thermal chemical vapor deposition. The QD-LED based on the hexagonal array of QDs may become one of key elements for the fabrication of a high resolution colour display.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years