TY  - JOUR
AU  - Schlykow, Viktoria
AU  - Manganelli, Costanza Lucia
AU  - Römer, Friedhard
AU  - Clausen, Catherina Johanna
AU  - Augel, Lion
AU  - Schulze, Joerg
AU  - Katzer, Jens
AU  - Schubert, Michael Andreas
AU  - Witzigmann, Bernd
AU  - Schroeder, Thomas
AU  - Capellini, Giovanni
AU  - Fischer, Inga Anita
TI  - Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas
JO  - Nanotechnology
VL  - 31
IS  - 34
SN  - 0957-4484
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2020-01880
SP  - 345203 -
PY  - 2020
AB  - We report on photodetection in deep subwavelength Ge(Sn) nano-islands on Si nano-pillar substrates, in which self-aligned nano-antennas in the Al contact metal are used to enhance light absorption by means of local surface plasmon resonances. The impact of parameters such as substrate doping and device geometry on the measured responsivities are investigated and our experimental results are supported by simulations of the three-dimensional distribution of the electromagnetic fields. Comparatively high optical responsivities of about 0.1 A W−1 are observed as a consequence of the excitation of localized surface plasmons, making our nano-island photodetectors interesting for applications in which size reduction is essential.
LB  - PUB:(DE-HGF)16
C6  - 32392549
UR  - <Go to ISI:>//WOS:000541891400001
DO  - DOI:10.1088/1361-6528/ab91ef
UR  - https://juser.fz-juelich.de/record/875226
ER  -