Sunday, February 23, 2020

Question Set of Organic Solar Cells Assignment Example | Topics and Well Written Essays - 250 words

Question Set of Organic Solar Cells - Assignment Example Moreover, electrons in the transition radiate photons with enough energy that mainly correspond to the difference between the existing energy levels. Thus, it means light corresponds to the frequency of the photons it emits. In case the light is within the visible section of the spectrum, the observable colors mainly correspond to the transitions making other colors miss. A phosphor is any material possessing the phenomenon of the luminescence. It encompasses phenomenon of the phosphorescence where transition occurs in the time interval of above 1ms and corresponding fluorescence, where transition occurs above tens of nanoseconds. Fluorescent bulbs are typically coated on the interior side with phosphors, which absorb UV radiation (Kragh, 2012). Moreover, phosphors are carefully selected in order enable emitted radiation to recompense for the missing colors within the spectrum of the gas found within the bulb. White light ( full spectrum) is emitted by the bulb. Moreover, dangerous UV radiation is absorbed by the underlying phosphors. The Bohr model predicted that the existence of electrons within the specific discrete energy levels, which does not contain energy amidst the existing energy levels but carry out transition from one energy level to the other (Kragh, 2012). The underlying atom absorbs a photon when transition occurs from a relatively lower level to the corresponding higher level. Conversely, the atom emits a photon when transition occurs from a relatively higher level to corresponding lower level. The Bohr Model offers an improper value for the prevailing ground rate orbital angular momentum. Moreover, it makes poor prediction concerning the spectra of relatively bigger atoms. Nevertheless, it was replaced by Sommerfeld’s

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