The Role of Charge Carriers Trapping Sites in Photogeneration
Malgorzata Obarowska, Ryszard Signerski and Jan Godlewski
Measurements of photoconductivity in vacuum evaporated tetracene layers are reported. Particularly, the mechanism of charge carriers photogeneration has been studied. It is concluded that whilst the hole photocurrent can be analyzed in terms of the Onsager model, the electron photocurrent may be treated by the extension of the Onsager model taking into account the role of charge carrier trapping sites.