Flexible a-Si:H position-sensitive detectors Export

@article{citeulike:731610, abstract = {Flexible and large area (5 mm /spl times/80 mm with an active length of 70 mm) position-sensitive detectors (PSDs) deposited onto polymeric substrates (polyimide-Kapton VN) have been fabricated. The optimized structure presented is based on a heterojunction of amorphous silicon (a-Si:H)/ZnO:Al. The sensors were characterized by spectral response, photocurrent dependence as a function of light intensity, and position detection measurements. The set of data obtained on one-dimensional PSDs based on the heterojunction show excellent performances with a maximum spectral response of 0.12 A/W at 500 nm and a nonlinearity of /spl plusmn/10\% over 70-mm length. The produced sensors present a nonlinearity higher than those ones produced on glass substrates, due to the different thermal coefficients exhibited by the polymer and the a-Si:H film. In order to prove this behavior, it was measured the defect density obtained by the constant photocurrent method on a-Si:H thin films deposited on polymeric substrates and bent with different radii of curvature.}, author = {Fortunato, E. and Pereira, L. and Aguas, H. and Ferreira, I. and Martins, R.}, citeulike-article-id = {731610}, citeulike-linkout-0 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1461584}, journal = {Proceedings of the IEEE}, keywords = {applications, experiment, flexible-electronics, macroelectronics}, number = {7}, pages = {1281--1286}, posted-at = {2006-07-03 02:30:29}, priority = {5}, title = {Flexible a-Si:H position-sensitive detectors}, url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1461584}, volume = {93}, year = {2005} }

TY - JOUR ID - citeulike:731610 L3 - citeulike-article-id:731610 N2 - Flexible and large area (5 mm /spl times/80 mm with an active length of 70 mm) position-sensitive detectors (PSDs) deposited onto polymeric substrates (polyimide-Kapton VN) have been fabricated. The optimized structure presented is based on a heterojunction of amorphous silicon (a-Si:H)/ZnO:Al. The sensors were characterized by spectral response, photocurrent dependence as a function of light intensity, and position detection measurements. The set of data obtained on one-dimensional PSDs based on the heterojunction show excellent performances with a maximum spectral response of 0.12 A/W at 500 nm and a nonlinearity of /spl plusmn/10% over 70-mm length. The produced sensors present a nonlinearity higher than those ones produced on glass substrates, due to the different thermal coefficients exhibited by the polymer and the a-Si:H film. In order to prove this behavior, it was measured the defect density obtained by the constant photocurrent method on a-Si:H thin films deposited on polymeric substrates and bent with different radii of curvature. IS - 7 JF - Proceedings of the IEEE EP - 1286 TI - Flexible a-Si:H position-sensitive detectors VL - 93 SP - 1281 KW - applications KW - experiment KW - flexible-electronics KW - macroelectronics AU - Fortunato, E AU - Pereira, L AU - Aguas, H AU - Ferreira, I AU - Martins, R PY - 2005/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1461584 ER -