High-Performance Large-Scale Flexible Optoelectronics Using Ultrathin Silver Films with Tunable Properties
Visible spectrum
Transparent conducting film
Indium tin oxide
DOI:
10.1021/acsami.9b08289
Publication Date:
2019-07-08T11:57:54Z
AUTHORS (9)
ABSTRACT
One key obstacle in fabricating efficient flexible and printable optoelectronic devices is the absence of ideal transparent conductors with superior optical, electrical, mechanical properties. Here, high-performance are demonstrated using ultrathin (<10 nm) doped silver films, which exhibit an averaged visible transmittance 80% without any antireflection coating, sheet resistance less than 20 Ω sq-1, stability over 1000 bending cycles. The conductor prepared by doping additive metal (e.g., nickel, copper, titanium, chromium), its various properties can be readily tuned either different species or controlling dopant concentration. Centimeter-size, polymer light-emitting diodes fabricated a nickel-doped silver-based electrode, 30% enhanced current efficiencies compared to their indium tin oxide counterparts, invariant emission spectra at large viewing angles, operational for 1200 circles. In addition, 6 in. low-emissivity coatings copper-doped conductor, transmit 85.2% light while rejecting 90% infrared radiation beyond 1250 nm.
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