Novel Nanostructured Paper with Ultrahigh Transparency and Ultrahigh Haze for Solar Cells

Novel Nanostructured Paper with Ultrahigh Transparency and Ultrahigh Haze for Solar Cells

Year:2014
Author(s):Zhiqiang Fang, Hongli Zhu, Yongbo Yuan, Dongheon Ha, Shuze Zhu, Colin Preston, Qingxia Chen, Yuanyuan Li, Xiaogang Han, Seongwoo Lee, Gang Chen, Teng Li, Jeremy Munday, Jinsong Huang, and Liangbing Hu
Citation(s):Nano Lett., 14, 765–773 (2014)

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Abstract: Solar cell substrates require high optical transparency but also prefer high optical haze to increase the light scattering and consequently the absorption in the active materials. Unfortunately, there is a trade-off between these optical properties, which is exemplified by common transparent paper substrates exhibiting a transparency of about 90% yet a low optical haze (<20%). In this work, we introduce a novel transparent paper made of wood fibers that displays both ultrahigh optical transparency (96%) and ultrahigh haze (60%), thus delivering an optimal substrate design for solar cell devices. Compared to previously demonstrated nanopaper composed of wood-based cellulose nanofibers, our novel transparent paper has better dual performance in transmittance and haze but also is fabricated at a much lower cost. This high-performance, low-cost transparent paper is a potentially revolutionary material that may influence a new generation of environmentally friendly printed electronics.