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Updated: May 9, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
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C60的高效能源敏感化和对有机光伏的应用

Cong Trinh1, Kent O Kirlikovali, Andrew N Bartynski

  • 1Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA.

Journal of the American Chemical Society
|July 18, 2013
PubMed
概括

研究人员开发了一种 хлородипирин衍生物 (ZCl) 来增强有机光伏 (OPV). 这种传感器可以提高基于富勒的电子接受器的光吸收,增加光电流,而不会改变设备电压或填充因子.

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Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
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Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.