Accession Number : AD0442444


Title :   PHOTOCONDUCTION AND SEMICONDUCTION IN MONOCRYSTALS OF THE CHARGE-TRANSFER COMPLEX, PERYLENE-FLUORANIL,


Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PURE CHEMISTRY


Personal Author(s) : Kokado,H ; Hasegawa,K ; Schneider,W G


Report Date : 10 Dec 1963


Pagination or Media Count : 5


Abstract : Single crystals of the perylene-fluoranil chargetransfer complex were found to be photoconductive throughout the near ultraviolet, visible, and near infrared spectral regions. The temperature dependence of the semiconduction and photoconduction are characterized by apparent activation energies of 0.73 ev and 0.12 ev, respectively. Conductivity parallel to the c-crystallographic axis (along which the complex units are stacked in columns) was found to be about threefold greater than that in the perpendicular direction. Attempts to measure carrier mobilities proved unsuccessful. The results suggest extrinsic carrier generation accompanied by pronounced carrier trapping processes. (Author)


Descriptors :   *PHOTOCONDUCTIVITY , *SEMICONDUCTORS , COMPLEX COMPOUNDS , COMPLEX COMPOUNDS , SINGLE CRYSTALS , QUINONES , FLUORINE COMPOUNDS , AROMATIC COMPOUNDS , CRYSTAL STRUCTURE , HEAT OF ACTIVATION , VISIBLE SPECTRA , ULTRAVIOLET SPECTRA , INFRARED SPECTRA , CANADA , POLYCYCLIC COMPOUNDS


Distribution Statement : APPROVED FOR PUBLIC RELEASE