Multi-Functional Transparent Luminescent Configuration for Advanced Photovoltaics

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• 作者：Minwoo Nam ; Hyun-Keun Kwon ; S. Joon Kwon ; Soon-Hong Kwon ; Minjeong Cha ; Sung-Hwan Lee ; Sangpil Park ; Dawoon Jeong ; Kyu-Tae Lee ; Hanju Rhee ; Young Rag Do ; Sangin Kim ; Kyoungsik Kim ; Richard H. Friend ; Joon Soo Han ; Il Ki Han and Doo-Hyun Ko
• 刊名：Advanced Energy Materials
• 出版年：2016
• 出版时间：May 25, 2016
• 年：2016
• 卷：6
• 期：10
• 全文大小：6538K
• ISSN：1614-6840

文摘

The conversion and manipulation of light via luminescent down-shifting (LDS) show promise in numerous applications. An elegant combination of lanthanide-doped polymer-derived ceramics incorporated with versatile nanopatterns is demonstrated using direct nanoimprint techniques. The prompt formation of nanoscale photonic structures enhances the fluorescence emission from the LDS while retaining the material's optical transparency. The functionality of this material is further expanded to accommodate surface energy modulation by nanopatterns. The practical applicability of this platform in photovoltaic devices is evaluated, showing distinctively enhanced efficiency and lifetime mainly attributed to the nanopattern assisted strong LDS property. Moreover, to efficiently combine two lanthanide emissions, so called a “double imprint” approach is devised by superpositioning two LDS nanopatterned arrays. Combined with the multi-functionality such as prominent LDS characteristics, color tunability, and surface energy modulation, the developed LDS platform offers promise for esthetic building-integrated photovoltaics.