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Updated: Apr 8, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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在有机太阳能电池中非富勒烯受体的能量水平调节

Kjell Cnops1,2, German Zango3, Jan Genoe1,2

  • 1†ESAT, KU Leuven, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium.

Journal of the American Chemical Society
|June 25, 2015
PubMed
概括

有机光伏 (OPV) 中的非富勒烯接受器通过优化开放电路电压和光吸收来提高效率. 对充电运输层和接口能量进行战略调整是高性能OPV设备的关键.

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Photochemical Electrocyclic Reactions: Stereochemistry01:26

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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UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in...
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