Femtosecond photoemission study of excited state dynamics in organic photoreceptors

Antti Johannes Maekinen; S. Schoemann; Yongli Gao; M. Gary Mason; A. A. Muenter; Andrew R. Melnyk

doi:10.1117/12.381475

28 March 2000 Femtosecond photoemission study of excited state dynamics in organic photoreceptors

Antti Johannes Maekinen, S. Schoemann, Yongli Gao, M. Gary Mason, A. A. Muenter, Andrew R. Melnyk

Proceedings Volume 3940, Ultrafast Phenomena in Semiconductors IV; (2000) https://doi.org/10.1117/12.381475
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

The charge transfer (CT) process in organic semiconductor thin film structures is an important problem for applications such as photoreceptors and light-emitting devices. The operation of a photoreceptor structure is based on a CT process between a donor molecule and an acceptor transport molecule. We have investigated such a structure formed by vacuum-grown thin films of two organic molecules, N,N'-diphenethyl-3,4,9,10-perylenetetracarboxylic-diimide (DPEP) and N,N'-diphenyl-N,N'-(3-methylphenyl)-1,1'- biphenyl-4,4'-diamine (TPD), with femtosecond time-resolved photoemission spectroscopy. By measuring the lifetimes of the excited electron states in the mixtures of these molecules we are able to determine the time-scale for the electron transfer (ET) between the excited states of the TPD and DPEP molecules. We show that the biexponential ET dynamics consist of a short component of less than 100 fs and a long component of several hundreds fs in length.

Citation Download Citation

Antti Johannes Maekinen, S. Schoemann, Yongli Gao, M. Gary Mason, A. A. Muenter, and Andrew R. Melnyk "Femtosecond photoemission study of excited state dynamics in organic photoreceptors", Proc. SPIE 3940, Ultrafast Phenomena in Semiconductors IV, (28 March 2000); https://doi.org/10.1117/12.381475

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available