Do metal alloys exist with work function of ~1.4eV?

I am wondering if metal alloys with a work function of between 1.1-1.7eV (ideally 1.4eV) exist?

Some information exists on photoelectric work functions of metals here and here. Cesium seems to have the lowest work function of pure metals ~2.1eV. However, I’m wondering if lower work functions can be achieved with alloys.