  Future tonne-scale liquefied noble gas detectors depend on efficient light
detection in the VUV range. In the past years Silicon Photomultipliers (SiPMs)
have emerged as a valid alternative to standard photomultiplier tubes or large
area avalanche photodiodes. The next generation double beta decay experiment,
nEXO, with a 5 tonne liquid xenon time projection chamber, will use SiPMs for
detecting the $178\,\text{nm}$ xenon scintillation light, in order to achieve
an energy resolution of $\sigma / Q_{\beta\beta} = 1\, \%$. This paper presents
recent measurements of the VUV-HD generation SiPMs from Fondazione Bruno
Kessler in two complementary setups. It includes measurements of the photon
detection efficiency with gaseous xenon scintillation light in a vacuum setup
and dark measurements in a dry nitrogen gas setup. We report improved photon
detection efficiency at $175\,\text{nm}$ compared to previous generation
devices, that would meet the criteria of nEXO. Furthermore, we present the
projected nEXO detector light collection and energy resolution that could be
achieved by using these SiPMs.
