10 papers · ranked by Valyu relevance
Aimee Sheehan, Tatsiana Mikulchyk, Catherine De Castro, Safakath Karuthedath + 7 more
A series of new heavy-atom-free photosensitizers using 2,6-diethoxycarbonyl-BODIPY was designed and synthesized. Photoinduced electron transfer between the BODIPY and meso-aryl subunits followed by the formation of BODIPY triplet excited states via spin-orbit charge transfer intersystem crossing (SOCT-ISC) was studied…
Niko Vlahakis, Arden Clauss, Jose Rodriguez
High-energy electrons induce sample damage and motion at the nanoscale to fundamentally limit determination of molecular structures by electron diffraction. Using fast event-based electron counting (EBEC) detectors, we characterize electron beam-induced crystal lattice reorientations (BIR) that appear to broadly affect…
Shomik Verma, Daniel Farrell, Rachel Evans
Luminescent solar concentrators (LSCs) are a promising technology to help integrate solar cells into the built environment, as they are colorful, semi-transparent, and can collect diffuse light. While LSCs have traditionally been cuboidal, in recent years a variety of unconventional geometries have arisen, for example…
Sarthak Patnaik
We know that the diffusion is defined as the movement of molecules under a potential gradient. It is characterized by the diffusion coefficient. Diffusion coefficient determination can be done via various techniques, but in this paper, we have had a broad look at interferometry based optical methods for diffusion…
Authors not listed
In the field of mid-infrared (m-IR) applications, there is a need to control thermal radiation from metal-insulator-metal (MIM) metasurfaces without any optical components. Here, we introduce the concept of metalens for the MIM metasurfaces. The finite difference time domain (FDTD) simulation was used to design the…
Stephanie Tenney, Lauren Tan, Xuanheng Tan, Mikayla Sonnleitner + 6 more
Large area absorbers with localized defect emission are of interest for energy concentration via the antenna effect. Transfer between 2D and 0D quantum-confined structures is advantageous as it affords maximal lateral area antennas with continuously tunable emission. We report the quantum efficiency of energy transfer…
Stefan Diesing, Le Zhang, Eli Zysman-Colman, Ifor Samuel
Organic light-emitting diodes (OLEDs) are a revolutionary self-emitting display technology that has been successfully commercialized in mobile phones and TVs. The injected charges form both singlet and triplet excitons, and for high efficiency it is important to enable dark triplets to emit light. Currently materials…
Sen Wu, Abhishek Kumar Gupta, Kou Yoshida, Junyi Gong + 5 more
Herein, we demonstrate how judicious selection of donor decorating a central multiresonant thermally activated delayed fluorescence (MR-TADF) core based on quinolino[3,2,1 de]acridine-5,9-dione (DiKTa) can lead to very high-performance organic light-emitting diodes (OLEDs). Decorating the DiKTa core with triphenylamine…
Yide Zhang, Ufuk Yilmaz, Gustavo Vinicius Bassi Lukasievicz, Liam O’Faolain + 2 more
Atomic force microscopy-infrared spectroscopy (AFM-IR) is a photothermal scanning probe technique that combines nanoscale spatial resolution with the chemical analysis capability of mid-infrared spectroscopy. Using this hybrid technique, chemical identification down to the single molecule level has been demonstrated.…
Authors not listed
We present a mechanistic framework to characterize photon absorption in quantum dots, enabling rational optimization of image sensor designs. Our analysis is based on the Analytic Path structured-field model, which treats both electrons and photons as extended electromagnetic structures rather than point particles.…