Abstract

An ideal transparent electrode for high-performance optoelectronic devices required high electrical conductivity and minimum optical losses in the visible region of the spectrum at the same time, however, there is a trade-off between these two properties [1]. So far, transparent conductive oxides [2] and metal film [3] materials have been widely applied in transparent electrode for industrial-scaled propagation, however, drawbacks and obstacles are difficult to overcome to apply them in the rapid development of flexible optoelectronic devices. To be excited, the emerging percolation network used one-dimensional conductive nanomaterial such as silver nanowires is ideal as the basic unit, and the conductive paths can be built through bottom-up method by directly coating the nanomaterial ink on the various substrate [4]. But almost all the studies have focused on the networks consisted of random oriented nanowires, because it is an easy-fabrication method to reduce the cost for the large scale production, and which is exactly the advantage by using solution process [5]. Considering the ordered one-dimensional nanomaterials can remarkably enhance the structure-dependent physical properties including dielectric, electric, and optical properties, hence we fabricated large scale ordered silver nanowires array assisted by the viscous force, and this method is also under solution based process, as simple as previous work [6]. More importantly, the optoelectronic performance was notably improved compared to the random one, and the averaged transmittance can reach up to 94.7%, meanwhile the sheet resistances is showing as low as 5.11 Ω/sq.

© 2015 Optical Society of America