ELECTRICAL PROPERTIES OF ELECTRODEPOSITED PBO2 FILMS

Resistivity, Hall effect, and optical absorption of electrodeposited α- and β-PbO2 films have been investigated. Films of both crystalline modifications show low resistivities (α-PbO2.- 10-3 ohm-cm, β-PbO2: 10-4 ohm-cm) and electron densities of about 1021 cm-3. Free electrons are due to nonstoichiometry or to incorporation of hydrogen. As a result of the high carrier densities, the absorption edge is shifted to higher photon energies. The band gaps of intrinsic α- and β-PbO2 are about 1.4 eV. © 1969, The Electrochemical Society, Inc. All rights reserved.