High optoelectronic performance of layer-by-layer assembled carbon nanotube thin films as transparent electrodes for LC cell

Yong Tae Park; Hojin Lee; Dongseob Kim

doi:10.1117/12.2311919

5 June 2018 High optoelectronic performance of layer-by-layer assembled carbon nanotube thin films as transparent electrodes for LC cell

Yong Tae Park, Hojin Lee, Dongseob Kim

Author Affiliations +

Proceedings Volume 10691, Advances in Optical Thin Films VI; 106911N (2018) https://doi.org/10.1117/12.2311919
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

Highly transparent and conductive thin films were assembled as a potential indium tin oxide (ITO) replacement using layer-by-layer (LbL) assembly with carbon nanotubes (CNTs), sodium deoxycholate (DOC) as a stabilizer and poly(diallyldimethyl ammonium chloride) [PDDA] as polycations. This LbL adsorption of both species has linear increase independent on number of bilayers deposited. The self-assembly of DOC-stabilized CNTs and PDDA was shown to realize the thinner and smoother films with transparency (<84% T) and electrical conductivity (~300 Ω/sq) with a 23.5 nm thickness. Moreover, nitric acid doping was also treated for higher conductivity (~104 Ω/sq) due to the removal of insulating materials and the charge transfer doping. The optoelectronic performance of 5 BL DWNT LbL film here is much better than most other CNT thin films and capable of the ITO replacement. Then, the CNT LbL thin films were applied to fabricate liquid crystal (LC) cells as transparent electrodes. Voltage-transmittance performance exhibited the availability of a CNT LbL electrode to LC display. Additionally, the bending stability could suggest that these films potentially be used in a variety of electronic applications. Also, the ability to tailor thin film resistance can be potentially useful for anti-static films and EMI shielding.

Citation Download Citation

Yong Tae Park, Hojin Lee, and Dongseob Kim "High optoelectronic performance of layer-by-layer assembled carbon nanotube thin films as transparent electrodes for LC cell", Proc. SPIE 10691, Advances in Optical Thin Films VI, 106911N (5 June 2018); https://doi.org/10.1117/12.2311919

ACCESS THE FULL ARTICLE

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