Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 3, Issue 12, Pages -Publisher
WILEY
DOI: 10.1002/admt.201800203
Keywords
carbon nanotube sheets; flexible and transparent display; optical polarizer
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIT)
- NRF [2018R1A2B6006508]
- National Research Foundation of Korea [2018R1A2B6006508] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Development of new types of optical components applicable to flexible and stretched substrates is essential for designing innovative display platforms for wearable and outdoor applications. Here, a novel polarizer based on highly aligned macroscopic carbon nanotube (CNT) sheets with flexibility, thermal stability, high polarization efficiency, and high transmittance is introduced. Since the conductive multiwalled CNTs are essentially held together by van der Waals forces, wire-grid-type polarizers of well-aligned conductive CNTs in one direction can be developed without complex and difficult manufacturing processes. The CNT sheet exhibits uniform polarization efficiency in the visible light region and maintains its polarization characteristics without physical deformation even at temperatures greater than 100 degrees C. Moreover, the transmission according to the angle formed by two CNT sheets follows the Malus law, similar to a typical polarizer. Finally, the applicability of the CNT sheet polarizer on a commercial liquid crystal displays monitor is demonstrated.
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