Direct Observation of Photogenerated Carriers in Organic Photoreceptors by Time-Resolved Spectroscopic Techniques
Abstract:Time-Resolved spectroscopy is a powerful tool for investigation of photogeneration and photoconduction mechanism in layered organic photoreceptors because it can directly detect transient species in each step. So far, we have measured the transient absorption spectra of layered organic photoreceptors using azo pigments as charge generation materials (CGMs). As an extension work of our previous study, we applied this technique to photoreceptors using titanyl phthalocyanines (TiOPcs) as CGMs. For photoreceptors containing TiOPcs and CTMs, we obtained almost the same transient absorption spectrum as we observed in azo-CGM/CTM layers. However, TiOPcs gave weak transient absorption even without CTMs, whereas azo CGMs did not. We also found that the response to external electric field largely depended on the crystalline phase of TiOPc. It is interesting that these results strongly correlate with the photocarrier generation mechanism and the sensitivity of photoreceptors. These experimental results are discussed in connection with photocarrier generation mechanism.
Document Type: Research Article
Publication date: January 1, 2004
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Terms & Conditions
- ingentaconnect is not responsible for the content or availability of external websites