Fungi-Derived Pigments for Sustainable Organic (Opto)Electronics
Fungi-Derived Pigments for Sustainable Organic (Opto)Electronics
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DOI：
10.1557/adv.2018.446
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发表时间：
2018-01-01
期刊：
影响因子：
0.8
通讯作者：
Ostroverkhova, Oksana
中科院分区：
文献类型：
--
作者：
Gieshers, Gregory;Van Schenck, Jonathan;Ostroverkhova, Oksana
我们目前的光学和电子性质的真菌衍生的色素木黄酮在（光）电子应用的潜在用途。光学吸收光谱在各种浓度的溶液和薄膜进行了比较，并与聚集体形成在浓缩溶液和薄膜是一致的。为了改善通过溶液沉积技术获得的膜形态，将无定形聚合物PMMA引入到木茚定中以形成木茚定：PMMA共混物。电流-电压特性和空穴迁移率提取的空间电荷限制电流被认为是原始木茚二酮和木茚二酮：PMMA薄膜之间的可比性。并排比较原始木茚酮和木茚酮：PMMA膜在633 nm处的光响应揭示了木茚酮：PMMA膜中的光敏性的增加，这是由于有利于增强电荷产生的改进的形态。
We present on the optical and electronic properties of a fungi-derived pigment xylindein for potential use in (opto)electronic applications. Optical absorption spectra in solutions of various concentrations and in film are compared and are consistent with aggregate formation in concentrated solutions and films. In order to improve film morphology obtained by solution deposition techniques, an amorphous polymer PMMA was introduced to xylindein to form xylindein:PMMA blends. Current-voltage characteristics and hole mobilities extracted from space-charge limited currents were found to be comparable between pristine xylindein and xylindein:PMMA films. Side by side comparison of the photoresponse of pristine xylindein and xylindein:PMMA films at 633 nm revealed an increase in the photosensitivity in xylindein:PMMA films due to the improved morphology favouring enhanced charge generation.