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Lifetime of Photogenerated Carriers in TCNQ Single Crystals
Author(s) -
Eley D. D.,
Kinnear S.,
Willis M. R.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221080211
Subject(s) - bolometer , wavelength , materials science , free carrier , photoconductivity , optoelectronics , carrier lifetime , carrier signal , optics , analytical chemistry (journal) , chemistry , physics , silicon , telecommunications , detector , chromatography , transmission (telecommunications) , computer science
Measurement of photocurrents using the variable frequency chopped light technique shows that the reported photocurrents are due to photogeneration of carriers rather than a bolometric effect. The carrier lifetime, which is 10 to 40 ms at room temperature is independent of wavelength, but dependent on temperature according to the equation τ = τ o e E/kT with E = 0.255 eV.