Fig. 4
From: Transparent conducting materials discovery using high-throughput computing

Schematic of the ideal transmittance window of a TCM, where the free carrier reflection (plasma) edge is below 1.75 eV, and the onset of absorption due to the strong interband optical transitions is above 3.25 eV, opening a transparent window over the entire visible spectrum. Reprinted by permission from Springer Nature (Zhang et al.77)