Exciton-phonon coupling and phonon-assisted exciton relaxation dynamics in In1-xGaxP quantum dots
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Li, Beiye C. (ORCID:0000000267174318)↗
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Results for “EXCITONS”
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Robust Excitons in Soft Supramolecular Nanotubes
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solar (photovoltaic), solid state lighting, photos↗
Computation of exciton binding energies in exciton condensation
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Schouten, Anna O. (ORCID:0000000264255219)↗
Brightening of dark excitons in WS 2 via tensile strain-induced excitonic valley convergence
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Materials Science↗
Complexes of dipolar excitons in layered quasi-two-dimensional nanostructures
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Bondarev, Igor V.↗
Fingerprints of Berry phases in the bulk exciton spectrum of a topological insulator
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Allocca, Andrew A.↗
Tuning Many-Body Interactions in Graphene: The Effects of Doping on Excitons and Carrier Lifetimes
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solar (photovoltaic), electrodes - solar, charge t↗
First-principles ultrafast exciton dynamics and time-domain spectroscopies: Dark-exciton mediated valley depolarization in monolayer WSe 2
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Chen, Hsiao-Yi (ORCID:0000000319625767)↗
NPQ (T) : a chlorophyll fluorescence parameter for rapid estimation and imaging of non-photochemical quenching of excitons in photosystem-II-associated antenna complexes: New, rapid probe of non-photochemical quenching
In photosynthesis, light energy is absorbed by light-harvesting complexes and used to drive photochemistry. However, a fraction of absorbed light is lost to non-photochemical quenching (NPQ) that reflects several important photosynthetic processes to dissipate excess energy. Currently, estimates of NPQ and its individual components (q E , q I , q Z and q T ) are measured from pulse-amplitude-modulation (PAM) measurements of chlorophyll fluorescence yield and require measurements of the maximal yield of fluorescence in fully dark-adapted material (F m ), when NPQ is assumed to be negligible. Unfortunately, this approach requires extensive dark acclimation, often precluding widespread or high-throughput use, particularly under field conditions or in imaging applications, while introducing artefacts when F m is measured in the presence of residual photodamaged centres. To address these limitations, we derived and characterized a new set of parameters, NPQ (T) , and its components that can be (1) measured in a few seconds, allowing for high-throughput and field applications; (2) does not require full relaxation of quenching processes and thus can be applied to photoinhibited materials; (3) can distinguish between NPQ and chloroplast movements; and (4) can be used to image NPQ in plants with large leaf movements. Finally, we discuss the applications benefits and caveats of both approaches.
chlorophyll fluorescence↗