Abstract
Conventional color filters selectively absorb a part of the backlight while reflecting or transmitting other light, resulting in the problem of low efficiency and energy wasting. For this problem, a new concept of fluorescence enhanced optical resonator was proposed and verified in this paper. The new structure consists of structural color filter and light-conversion material. Specially, a thin film resonant cavity was designed, and InP/ZnSe/ZnS quantum dots were inserted inside the resonator. When illuminated by sunlight, the novel fluorescence enhanced optical resonator could not only reflect the specific light, but also convert absorbed energy into desired light, leading to the utilization efficiency improvement of solar energy. An all-dielectric red fluorescence enhanced optical resonator was fabricated, with peak equivalent reflectance up to 105%. Compared with a thin film resonator, the enhancement coefficient of the as-proposed structure is about 124%. The new optical structure can utilize solar source efficiently, showing application potential as the next generation of reflective color filters for display.
Highlights
Demands for panel display devices, which is one of the most important ways to communicate and share information, are dramatically increasing, especially during the COVID-19 pandemic
The detectable outgoing light is composed of two parts: (1) the reflected portion when the incident light is projected onto the resonant cavity; and (2) the fluoresportion when the incident light is projected onto the resonant cavity; and (2) the fluorescence generated by the stimulated quantum dots when the transmitting portion in the cence generated by the stimulated quantum dots when the transmitting portion in the incident light enters into the resonant cavity
Compared with conventional resonator devices, the most significant difference of fluorescence enhanced optical resonator in this paper is the introduction of quantum dots fluorescence enhanced resonator optical resonator thismost papersignificant is the introduction quantum dots
Summary
Demands for panel display devices, which is one of the most important ways to communicate and share information, are dramatically increasing, especially during the COVID-19 pandemic. No matter the type of conventional color filters, the basic principle of absorbing undesired wavelength light results in the low effective utilization of the source energy. Quantum dots can absorb light cient and made extra high reflection mirrors [20]. Quantum dots are widely used in display achieve a larger color gamut [22]. Quantum dots are widely and considered the generation of color filters. A new concept of fluorescence enhanced optical resonator, which couples an optical resonator and fluorescent quantum dots, is proposed for the first time. Resonator has application potentials for high-efficiency reflective color filters
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
