Nanowire-based metamaterials electrodes for extremely fast charge collection

Yuyi Feng; Paul Kim; Clayton A. Nemitz; Kwang-Dae Kim; Yoonseok Park; Karl Leo; James Dorman; Jonas Weickert; Yongtian Wang; Lukas Schmidt-Mende

doi:10.1117/12.2501666

25 October 2018 Nanowire-based metamaterials electrodes for extremely fast charge collection

Yuyi Feng, Paul Kim, Clayton A. Nemitz, Kwang-Dae Kim, Yoonseok Park, Karl Leo, James Dorman, Jonas Weickert, Yongtian Wang, Lukas Schmidt-Mende

Author Affiliations +

Proceedings Volume 10824, Plasmonics III; 1082409 (2018) https://doi.org/10.1117/12.2501666
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

Hybrid nanostructures, comprising of a metal core and a semiconductor shell layer, shows great potential for a new generation of low-cost solar cells, due to their unique electronic and optical properties. However, experimental results have fallen far short of unltra-high efficiency (i.e. beyond Shockley-Queisser limit) predicted by theoretical simulation, limiting commercial application. Here, we experimentally design a non-transparent organic solar cell containing an array of Ag/ZnO nanowires, increasing internal quantum efficiency (IQE) by a factor of 2.5 compared with the planar counterpart, indicating a great enhancement of charge collection efficiency, due to the ultrafast Ag nanowire channels. Furthermore, we exploit this hybrid nanostructure as a perfect back reflector for semi-transparent solar cells, resulting in enhanced light absorption by a factor of 1.8 compared with the planar counterparts. The ability to enhance the charge collection and light absorption makes these Ag/ZnO nanostructures a flexible platform for the development of modern optoelectronic devices.

Citation Download Citation

Yuyi Feng, Paul Kim, Clayton A. Nemitz, Kwang-Dae Kim, Yoonseok Park, Karl Leo, James Dorman, Jonas Weickert, Yongtian Wang, and Lukas Schmidt-Mende "Nanowire-based metamaterials electrodes for extremely fast charge collection", Proc. SPIE 10824, Plasmonics III, 1082409 (25 October 2018); https://doi.org/10.1117/12.2501666

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