Role of metal phthalocyanine in redox complex conductivity of polyaniline and aniline black

Growth and characterization of an organometallic nonlinear optical crystal of manganese mercury thiocyanate (MMTC)

“…The sample was connected in series to a DC power supply and a picoammeter (Keithley 480). The details of experimental setup used in the present study is reported elsewhere [22]. The applied voltage was increased from 0 to 400 V in steps of 20 V and the corresponding dark current was recorded.…”

Growth and characterization of 2-amino-5-chlorobenzophenone (2A-5CB) single crystals

“…The dark current of the crystal is more than the photocurrents which is termed as negative photoconductivity. The negative photoconductivity exhibited by the sample may be due to the reduction in the number of charge carriers in the presence of radiation [13,14]. The decrease in mobile charge carriers during negative photoconductivity can be explained by the Stockmann model also, which is reported elsewhere [15].…”

Growth and optical characterization of Cu- and Mg- substituted l-arginine di phosphate single crystals

“…The details of the experimental setup used in the present work is reported elsewhere [14]. Dark conductivity of the sample was first measured by connecting the sample in series to a DC power supply and a picoammeter.…”