  Generating robust entanglement among solid-state spins is key for
applications in quantum information processing and precision sensing. We show
here a dissipative approach to generate such entanglement among the hyperfine
coupled electron nuclear spins using the rapid optical decay of electronic
excited states. The combined dark state interference effects of the optical and
microwave driving fields in the presence of spontaneous emission from the
short-lived excited state leads to a dissipative formation of an entangled
steady state. We show that the dissipative entanglement is generated for any
initial state conditions of the spins and is resilient to external field
fluctuations. We analyze the scheme both for continuous and pulsed driving
fields in the presence of realistic noise sources.
