Highly transparent and conductive double-layer oxide thin films as anodes for organic light-emitting diodes Available to Purchase

Double-layer transparent conducting oxide thin film structures containing In-doped CdO (CIO) and Sn-doped $In2O3$ (ITO) layers were grown on glass by metal-organic chemical vapor deposition and ion-assisted deposition (IAD), respectively, and used as anodes for polymer light-emitting diodes (PLEDs). These films have a very low overall In content of $16at.%$⁠. For $180-nm$-thick CIO/ITO films, the sheet resistance is $5.6Ω∕◻$⁠, and the average optical transmittance is 87.1% in the $400–700nm$ region. The overall figure of merit $(Φ=T10∕Rsheet)$ of the double-layer CIO/ITO films is significantly greater than that of single-layer CIO, IAD-ITO, and commercial ITO films. CIO/ITO-based PLEDs exhibit comparable or superior device performance versus ITO-based control devices. CIO/ITO materials have a much lower sheet resistance than ITO, rendering them promising low In content electrode materials for large-area optoelectronic devices.