Contribution of edge recoiling of diffusion to anomalous transient photo-currents in amorphous materials

Autor:	Abraham Picos-Vega, Mufei Xiao
Rok vydání:	2001
Předmět:	Physics Condensed matter physics Anomalous diffusion Homogeneous Normal diffusion General Physics and Astronomy Amorphous solid
Zdroj:	Physics Letters A. 285:395-400
ISSN:	0375-9601
DOI:	10.1016/s0375-9601(01)00359-0
Popis:	We demonstrate that the edge recoiling of diffusion may cause anomaly in transient photo-currents measured by the time-of-flight technique for homogeneous amorphous materials. The universality of the anomalous transports is successfully revealed in this new macroscopic explanation. The anomaly in the transient currents is directly related to the degree of the diffusion and the drift. In the previously established continuous-time-random-walk theory, similar anomalous transports were attributed to some unusual microscopic process of retarded trapping–releasing and hopping. We show that the same effects may present in homogeneous materials with normal diffusion process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8166f259dfe58fe09a3893a8eb609ae7 https://doi.org/10.1016/s0375-9601(01)00359-0 Zobrazit plný text záznamu Full Text from ScienceDirect