Types segmentation classifies sputtering targets by material composition and functional design. Single‑element targets (e.g., pure silicon, aluminum) are the simplest form, used where elemental layers are required, and they represent a modest share of the market due to limited applicability in complex cell stacks. Compound targets such as Cu(In,Ga)Se₂ (CIGS) or Cu₂ZnSnS₄ (CZTS) dominate, comprising roughly 45 % of sales, because they enable direct deposition of multi‑element absorber layers without subsequent alloying steps. Alloyed and doped targets (e.g., Si doped with phosphorus or boron) account for about 30 %, supporting conductivity tuning and band‑gap engineering. Finally, Specialty targets—including multilayered, graded‑composition, and isotopically enriched variants—make up the remaining 25 % and serve niche applications like tandem cells and high‑efficiency research prototypes. Each type contributes uniquely to the market’s total value, with compound and alloyed targets driving the bulk of revenue due to their critical role in commercial thin‑film solar cell production. This breakdown reinforces the market taxonomy essential for strategic planning.