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Updated: Apr 30, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
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化物激活的CdSe薄膜中的辐射缺陷

Abasi Abudulimu1, Xiaoming Wang1, Tyler Brau1

  • 1Wright Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and Astronomy, The University of Toledo, Toledo, Ohio 43606 United States.

ACS energy letters
|February 19, 2026
PubMed
概括

化 (CdCl2) 退火将多孔的化 (CdSe) 转化为密集的多晶体,大大减少了与缺陷相关的能量损失. 这一过程提高了光带边缘的敏度,并澄清了广隙石灰体装置中的辐射路径.

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Imperfections in Crystal Structure: Stoichiometric Point Defects01:26

Imperfections in Crystal Structure: Stoichiometric Point Defects

Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...
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Imperfections in Crystal Structure: Non-Stoichiometric Defects01:29

Imperfections in Crystal Structure: Non-Stoichiometric Defects

Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...
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