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Photoresponse of porphyrin thin-film electrode in the near-infrared

✍ Scribed by Yutaka Harima; Minoru Miyatake; Paul Price; Kazuo Yamashita


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
376 KB
Volume
262
Category
Article
ISSN
0009-2614

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✦ Synopsis


Photocurrent peaks in the near-infrared (NIR) are observed with ZnTPP thin-film electrodes in solutions. The peak positions compare well with those of the synergism spectrum for the AI/ZnTPP/Au dry cell although no NIR photocurrent is seen in the action spectrum of the dry cell. It is speculated that the magnitude of the NIR photoresponse attributable to a trace of ZnTPP photoproducts depends on the position of the LUMO levels of the impurity relative to the Fermi level of the ZnTPP solid at the metal/ZnTPP or solution/ZnTPP interface.


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