Photochemical properties of PbS microcrystallites prepared in Nafion

Autor:	Hirokazu Miyoshi, Mikio Yamachika, Hiroshi Yoneyama, Hirotaro Mori
Rok vydání:	1990
Předmět:	chemistry.chemical_compound chemistry Absorption spectroscopy Transition metal Band gap Nafion Inorganic chemistry Photoelectrochemistry Electrode Analytical chemistry Hypsochromic shift Physical and Theoretical Chemistry Electronic band structure
Zdroj:	Journal of the Chemical Society, Faraday Transactions. 86:815
ISSN:	1364-5455 0956-5000
Popis:	PbS microcrystallites ranging from 16 to 40 A were prepared in Nafion; band gaps were determined from absorption spectra. The maximal hypsochromic shift achieved by the size quantization was ca. 1.7 eV. The onset potential of anodic photocurrents at Nafion-coated electrodes with the incorporated PbS shifted cathodically with an increase in the band gap, and it satisfied the hyperbolic band theory concerning the band gap variations with the size quantization. Fluorescence of PbS microcrystallites was greatly influenced by solvents into which PbS-incorporated Nafion was immersed, as in the case of CdS-incorporated Nafion.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7497c646f8cfded879eb2e9d5ca058e7 https://doi.org/10.1039/ft9908600815 Zobrazit plný text záznamu