![]() ![]() ![]() In the solid state, it was discovered that these molecules pack in a “slip-stack” fashion, facilitating crystallinity and charge mobility in solar cells. These researchers systematically varied the conjugation length of the RWPt complexes and studied the optical properties, morphology, and electrical properties by various analytical techniques including cyclic-voltammetry, X-ray diffraction, transient absorption, and solar device performance. Pt-based materials offer large-spin orbit coupling and square-planarity that can give rise large oscillator strengths of ground and exited states and ordered crystalline structures required to harness light and shuttle electrons.įigure 2: The Pt-based “Roller-Wheel” complexes engineered for solar harvesting studied in this research. Yang Qin, researchers at the University of New Mexico have designed and synthesized exceptional Pt-based molecular “Roller-wheels” (Figure 2, RWPt) that demonstrated a solar cell power conversion efficiency (PCE) up to 5.9% for the RWPt-2 complex, better than any previous Pt-based solar material by 2%. Edinburgh Instruments has designed the LP980 Transient Absorption (Flash Photolysis) Spectrometer to be the world’s only commercially available spectrometer to feature dual detector options for direct kinetic and spectral measurements required for research into novel materials for solar energy conversion.įigure 1: The Edinburgh Instruments LP980 Spectrometer. Having the ability to measure and quantify the energies and lifetimes of photo-generated excited states is of utmost importance in the design of molecules that possess the desirable traits needed for these applications. ![]() Engineering new materials with unique and valuable electronic and optical properties is paramount in the design of new devices from memory storage to creating the next generation of organic photovoltaic solar cells. ![]()
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