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22 March 2021 Optical properties of nanocellulose film and its applications
Jaehwan Kim, Dickens O. Agumba, Hyun Chan Kim, Pham Duc Hoa
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Proceedings Volume 11590, Nano-, Bio-, Info-Tech Sensors and Wearable Systems; 115900S (2021) https://doi.org/10.1117/12.2582713
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
Over the past decades, glass has been utilized in optoelectronic devices. However, glass has many limitations impeding its use including high coefficient of thermal expansion, glare and shadowing effects. Moreover, various complex nanostructures and inorganic nanoparticles are required to tune the optical properties of glass. For green optoelectronics, cellulose, the most ubiquitous and abundant polymer on planet, is the perfect candidate that could substitute glass. Herein, we modulate light propagation through a random network of cellulose fibers by dramatically tuning the optical properties of cellulose for different applications. We obtained a nano-paper with a high total transmittance >90% and an ultralow haze>0.5% which is suitable for high definition displays. By modifying the morphology of the same cellulose fibers, highly transparent and hazy cellulose film suitable for antiglare windows and solar substrates with a total transmittance >85% and haze >80% is also obtained. These findings offer new possibilities of using cellulose nanofiber to tune the optical properties of glass and other optical materials through blending or coating rather than using toxic nanoparticles.
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Jaehwan Kim, Dickens O. Agumba, Hyun Chan Kim, and Pham Duc Hoa "Optical properties of nanocellulose film and its applications", Proc. SPIE 11590, Nano-, Bio-, Info-Tech Sensors and Wearable Systems, 115900S (22 March 2021); https://doi.org/10.1117/12.2582713
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KEYWORDS
Optical properties
Glasses
Air contamination
Nanoparticles
Optical fibers
Transmittance
Optoelectronic devices
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