TY  - JOUR
AU  - Schöps, V.
AU  - Huhn, T.
AU  - Boneberg, J.
AU  - Scheer, E.
AU  - Offenhäusser, A.
AU  - Mayer, D.
AU  - Lenyk, Bohdan
TI  - Facile, non-destructive characterization of 2d photonic crystals using UV-vis-spectroscopy
JO  - Physical chemistry, chemical physics
VL  - 20
IS  - 6
SN  - 1463-9084
CY  - Cambridge
PB  - RSC Publ.
M1  - FZJ-2018-01393
SP  - 4340 - 4346
PY  - 2018
AB  - We present a simple and non-destructive method for characterizing and quantifying the quality of two-dimensional (2D) close-packed arrays of submicron dielectric spheres. Utilizing radiative losses of photonic modes created by the 2D crystals into dielectric substrates we are able to monitor the quality of the particle monolayer during assembly and the size evolution of the individual particles during dry etching. Using an advanced interfacial assembly technique we prepare particle monolayers on glass and characterize the spectral behaviour of the radiative loss regarding different lattice constants, dielectric substrates and layer qualities. The effect of diameter reduction during dry etching is analysed and a simple model is proposed, which enables non-destructive, on spot characterization of the particle layer with sub-20 nm resolution using UV-vis spectroscopy.
LB  - PUB:(DE-HGF)16
C6  - pmid:29367990
UR  - <Go to ISI:>//WOS:000424357100051
DO  - DOI:10.1039/C7CP07498K
UR  - https://juser.fz-juelich.de/record/843862
ER  -