by Juan Cabanillas-Gonzalez, Malte Schmidt, Ovidio Peña-Rodríguez, M. Isabel Alonso, Alejandro R. Goñi and Mariano Campoy-Quiles
Abstract:
We have developed organic photodetectors based on two complementary wedge layers made of CuPc and C60 and observed a strong spatial dependence of the spectral response on the position of the incident light spot. Photocurrent measurements are correlated with atomic force microscopy (AFM), micro-Raman and ellipsometry maps in order to provide insights into the local donor/acceptor concentration, layer thickness and nature of the donor–acceptor interface along the direction of the thickness gradient. Deviations in spatial dependence between experimental photocurrent values and those predicted with a model assuming a sharp and well defined organic–organic interface are discussed in terms of inter-diffusion layers.
Reference:
Juan Cabanillas-Gonzalez, Malte Schmidt, Ovidio Peña-Rodríguez, M. Isabel Alonso, Alejandro R. Goñi and Mariano Campoy-Quiles, “Effect of Structure and Interlayer Diffusion in Organic Position Sensitive Photodetectors Based on Complementary Wedge Donor/Acceptor Layers”, Journal of Nanoscience and Nanotechnology, vol. 13, no. 7, pp. 5148–5153.
Bibtex Entry:
@article{cabanillas-gonzalez_effect_2013,
title = {Effect of {Structure} and {Interlayer} {Diffusion} in {Organic} {Position} {Sensitive} {Photodetectors} {Based} on {Complementary} {Wedge} {Donor}/{Acceptor} {Layers}},
volume = {13},
doi = {10.1166/jnn.2013.7503},
abstract = {We have developed organic photodetectors based on two complementary wedge layers made of CuPc and C60 and observed a strong spatial dependence of the spectral response on the position of the incident light spot. Photocurrent measurements are correlated with atomic force microscopy
(AFM), micro-Raman and ellipsometry maps in order to provide insights into the local donor/acceptor concentration, layer thickness and nature of the donor–acceptor interface along the direction of the thickness gradient. Deviations in spatial dependence between experimental photocurrent
values and those predicted with a model assuming a sharp and well defined organic–organic interface are discussed in terms of inter-diffusion layers.},
number = {7},
journal = {Journal of Nanoscience and Nanotechnology},
author = {Cabanillas-Gonzalez, Juan and Schmidt, Malte and Peña-Rodríguez, Ovidio and Alonso, M. Isabel and Goñi, Alejandro R. and Campoy-Quiles, Mariano},
month = jul,
year = {2013},
pages = {5148--5153},
}