Photochemistry of Nanocage Ca12Al14−xSixO32Cl2+x (x = 0.0 and 3.4) Crystals
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概要
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We observed the photogenerated color centers in Ca12Al14−xSixO32Cl2+x analogs of Ca12Al14O33 (C12A7) crystals with crystallographic subnanometer-sized cages partially occupied by Cl ions. Excimer laser irradiation created electrons trapped in the cages and holes on nonbridging oxygen 2p orbitals, accompanied by the formation of O−, H0, and H−. These centers were gradually erased at room temperature in ca. 30 min. These results demonstrate that the cages in C12A7 analogs act as traps for active anionic species and electrons generated by light excitation.
- 公益社団法人 日本化学会の論文
著者
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Hosono Hideo
Materials And Structures Laboratory Tokyo Institute Of Technology
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Matsuishi Satoru
Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Hosono Hideo
Materials Research Center for Element Strategy, Tokyo Institute of Technology
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Muramatsu Hiroki
Materials and Structures Laboratory, Tokyo Institute of Technology
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