Light Detection with VUV-sensitive SIPMs in nEXO

nEXO is a 5 tonne liquid xenon time projection chamber planned to search for the neutrinoless double beta decay of ¹³⁶Xe with a target half-life sensitivity of approximately 10²⁸ years, which depends on good energy resolution. Efficient light detection is critical for achieving the desired energy resolution σ/Q_ββ of 1% or better. nEXO will use 4m² of Silicon Photomultiplier (SiPM) for the detection of the 175 nm scintillation light of Xe. Recent measurements show promising results from FBK with photon detection efficiencies (PDE) exceeding well above 15%. In addition, the dark noise and the correlated avalanche rate meet our requirements. This talk will cover the light detection in nEXO, the most recent results from measurement of FBK SiPMs and the potential energy resolution that is achievable in the nEXO detector by using these SiPMs.