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We demonstrate that white light luminescence in two-dimensional (2D) perovskites stems from photoinduced formation of small polarons confined at specific sites of the inorganic framework in the form of self-trapped electrons and holes. We discuss their application in white light emitting devices and X-ray scintillators.
The fields of organic electronics and photonics have witnessed remarkable advances over the past few years. This progress bodes well for the increased utilization of organic materials as the active layers in devices for applications as diverse as light-emitting diodes, field-effect transistors, solar cells, or all-optical switches. In the present document, we choose to focus the discussion on organic...
By preventing aggregation of polymethine molecules at high number density, we have developed organic materials with large third-order nonlinearities and low nonlinear absorption in the near-infrared thereby enabling demonstration of an all-optical signal processing application.
Organic light-emitting diodes (OLEDs) continue to generate a lot of interest due to their role in flexible displays and in solid-state lighting. While continuous improvements have been achieved in performance, there is still a continuous need for new materials and device architectures that will comply with the future needs of large-area displays with increasing resolution, and with the lower cost...
A molecular design strategy that involves favorable control of one- and two-photon absorption resonances to produce exceptional nonlinear optical figures-of-merit for all-optical switching has been realized in a series of cyanines dyes.
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