The Global Betavoltaic Device Market Size is Expected to Grow from USD 179.5 Million in 2023 to USD 547.5 Million by 2033, at a CAGR of 11.80% during the forecast period 2023-2033.Betavoltaic device refers to a nuclear battery that generates electric current from beta particles (electrons) emitted from a radioactive source, commonly hydrogen isotope tritium.