DOI: https://doi.org/10.29363/nanoge.emlem.2023.033
Publication date: 18th August 2023
The aligned quantum rods emit polarized light that could potentially improve the efficiency of the LCD backlights. Semiconductor quantum rods (QRs), due to their unique shape-dependent emission properties, have been a center of attraction for the last decade [1-8]. These materials not only exhibit the quantum confinement effect due to their size, but also show polarized photoluminescence properties. In this talk, we will discuss the High-quality alignment of the QRs showing a high polarization ratio for the PL. We developed a photoaligned quantum rod enhancement films (QREF) containing red and green QRs, for their application in LCD backlights. A 6-inch QREF was printing using Inkjet printing and later deployed to the LCD [5-8]. The polarization ratio of the emitted light for the printed QREFs is measured to be ~ 7:1 (see fig. 1 (a-c)) [8]. Later, we developed the LCD backlight. The intensity of the QREF backlight is measured at ~ 7200 nits, which becomes ~561 nits after the LCD panel shows an optical efficiency of ~7.8%, which is approximately 1.7 times higher than conventional LCD. In conclusion, we can say that the photoaligned quantum rods can double the efficiency of modern display devices. In this talk, we will explore the detail of photoalignment of QRs and their application in displays.
Acknowledgment
The financial support from the ITF Grant ITS/370/16 from ITC Hong Kong government, The RGC of Hong Kong SAR (Grant No. 26202019), Huawei, Microlite Ltd., CSOT China, TTC HKUST, Transconsultant Ltd, ASTRI HK, and the State Key Laboratory of Advanced Displays and Optoelectronics Technologies, Hong Kong University of Science and Technology are gratefully acknowledged.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.