Few materials have been identified as high-performance transparent conductors in the visible regime (400–700 nm). Even fewer conductors are known to be transparent in ultraviolet (UV) spectrum, especially at wavelengths below 320 nm. Doped wide-bandgap semiconductors employed currently as UV transparent conductors have insufficient electrical conductivities, posing a significant challenge for achieving low resistance electrodes. Here, we propose SrNbO₃ as an alternative transparent conductor material with excellent performance not only in the visible, but also in the UV spectrum. The high transparency to UV light originates from energetic isolation of the conduction band, which shifts the absorption edge into the UV regime. The standard figure of merit measured for SrNbO₃ in the UV spectral range of 260–320 nm is on par with indium tin oxide in the visible, making SrNbO₃ an ideal electrode material in high-performance UV light emitting diodes relevant in sanitation application, food packaging, UV photochemotherapy, and biomolecule sensing.

在可见光范围内（400-700 nm），很少有材料被确定为高性能透明导体。已知甚至更少的导体在紫外（UV）光谱中是透明的，尤其是在波长低于320 nm的情况下。当前用作UV透明导体的掺杂的宽带隙半导体具有不足的电导率，这对于实现低电阻电极提出了重大挑战。在这里，我们提出SrNbO ₃作为一种替代的透明导体材料，不仅在可见光方面而且在UV光谱方面都具有出色的性能。对紫外光的高透明性来自于导带的高能隔离，从而将吸收边缘转变为紫外光。SrNbO ₃的标准品质因数在260-320 nm的紫外光谱范围内与可见光中的氧化铟锡相当。这使得SrNbO ₃成为高性能紫外发光二极管的理想电极材料，与卫生应用，食品包装，紫外光化学疗法和生物分子传感相关。