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Related Concept Videos

Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
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The Photochemical Reaction Center

Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Photochemical Electrocyclic Reactions: Stereochemistry

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Selection Rules: Photochemical Activation

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Related Experiment Video

Updated: May 26, 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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Organic photoresponse materials and devices.

Huanli Dong1, Hongfei Zhu, Qing Meng

  • 1Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

Chemical Society Reviews
|December 14, 2011
PubMed
Summary

This review explores organic photoresponse materials and devices, crucial for optoelectronics and renewable energy. It analyzes photoconductive, photovoltaic, and optical memory effects to guide high-performance device fabrication.

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Published on: October 18, 2018

Area of Science:

  • Organic optoelectronics
  • Materials science
  • Renewable energy technologies

Background:

  • Organic photoresponse materials are vital for addressing energy challenges.
  • Photoresponse in organic materials exhibits photoconductive, photovoltaic, and optical memory effects.
  • These effects enable diverse device applications.

Purpose of the Study:

  • To systematically analyze organic photoresponse materials and devices.
  • To provide a guide for understanding structure-property relationships.
  • To offer insights for fabricating high-performance organic optoelectronic devices.

Main Methods:

  • Critical review of existing literature.
  • Analysis of photoconductive, photovoltaic, and optical memory effects.
  • Categorization of devices based on photoresponse mechanisms.

Main Results:

  • Identification of key photoresponse effects in organic materials.
  • Classification of devices including photodetectors, organic solar cells, and optical data storage.
  • Summary of structure-property relationships.

Conclusions:

  • This analysis aids in understanding organic material behavior.
  • It provides crucial information for developing advanced optoelectronic devices.
  • It supports the integration of these devices in circuits and renewable energy applications.