Humidity- and Temperature-Tunable Metal–Hydrogel–Metal Reflective Filters,ACS Applied Materials & Interfaces

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Humidity- and Temperature-Tunable Metal–Hydrogel–Metal Reflective Filters
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-10-13 , DOI: 10.1021/acsami.1c15616
Semyon Chervinskii ₁ , Ibrahim Issah ₁ , Markus Lahikainen ₁ , Alireza R Rashed ₁ , Kim Kuntze ₁ , Arri Priimagi ₁ , Humeyra Caglayan ₁

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A tunable reflectance filter based on a metal–hydrogel–metal structure responsive to humidity and temperature is reported. The filter employs a poly(N-isopropylacrylamide)–acrylamidobenzophenone (PNIPAm–BP) hydrogel as an insulator layer in the metal–insulator–metal (MIM) assembly. The optical resonance of the structure is tunable by water immersion across the visible and near-infrared range. Swelling/deswelling and the volume phase transition of the hydrogel allow continuous reversible humidity- and/or temperature-induced tuning of the optical resonance. This work paves the way toward low-cost large-area fabrication of actively tunable reversible photonic devices.

中文翻译：

湿度和温度可调的金属-水凝胶-金属反射滤光片

报道了一种基于金属-水凝胶-金属结构对湿度和温度敏感的可调反射滤光片。该过滤器采用聚（N-异丙基丙烯酰胺）-丙烯酰胺二苯甲酮（PNIPAm-BP）水凝胶作为金属-绝缘体-金属（MIM）组件中的绝缘层。该结构的光学共振可通过在可见光和近红外范围内浸水进行调节。水凝胶的溶胀/消溶胀和体积相变允许连续可逆的湿度和/或温度诱导的光学共振调谐。这项工作为低成本大面积制造主动可调可逆光子器件铺平了道路。

更新日期：2021-10-27

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