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Title: Highly Polarized Fluorescent Film Based on Aligned Quantum Rods by Contact Ink-Jet Printing Method
Authors: Zhou, Z.
Wang, K.
Zhang, Z.
Zhang, C.
Liu, H.
Zhang, Y.
Wen, Z.
Li, S.
Hao, J.
Xu, B.
Pennycook, S.J. 
Teo, K.L. 
Sun, X.W.
Keywords: Alignment
contact ink-jet printing
quantum rods.
Issue Date: 2019
Publisher: Institute of Electrical and Electronics Engineers Inc.
Citation: Zhou, Z., Wang, K., Zhang, Z., Zhang, C., Liu, H., Zhang, Y., Wen, Z., Li, S., Hao, J., Xu, B., Pennycook, S.J., Teo, K.L., Sun, X.W. (2019). Highly Polarized Fluorescent Film Based on Aligned Quantum Rods by Contact Ink-Jet Printing Method. IEEE Photonics Journal 11 (2) : 8654624. ScholarBank@NUS Repository.
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Abstract: Fluorescent quantum rods (QRs) have received much attention recently because of their properties of polarized light emission with narrow full width at half-maximum. Therefore, QRs can be used in liquid crystal display (LCD) backlight, as an active polarizer. In order to emit light with a high degree of polarization (DOP), QRs need to be controlled and aligned along one direction on large-scaled devices. However, most of the proposed effective alignment approaches cannot be applied to a large area. In this paper, we report for the first time the contact ink-jet printing (CIJP) method to align CdSe/CdS core/shell QRs. With the ink being printed, the QRs can align along the fluid ink flow direction resulting in aligned QRs along printing direction and forming a film with a high DOP of 42%. Furthermore, CIJP can realize arbitrarily large area fabrication without reducing DOP value. It is expected that this method can be utilized to print on large-scaled substrates directly to fabricate polarized optoelectronic devices, and further applied to LCD backlights and any other applications where polarized light is needed. © 2019 IEEE.
Source Title: IEEE Photonics Journal
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2019.2902313
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
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