Fungi-derived xylindein: effect of purity on optical and electronic properties
Fungi-derived xylindein: effect of purity on optical and electronic properties
复制标题
DOI：
10.1557/adv.2019.269
复制
发表时间：
2019-01-01
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：
Giesbers, Gregory;Krueger, Taylor;Ostroverkhova, Oksana
我们提出了一个研究的光学和电子性质的解决方案和薄膜的基础上真菌衍生的色素木黄酮，从腐烂的木材中提取和处理没有和一个简单的纯化步骤（“乙醇洗”）。由于去除了最可能是真菌次级代谢产物的污染物，“洗涤后”木茚酮溶液在紫外光谱范围内表现出相当低的吸收，并且在600 nm以下的光致发光显著降低。与“预洗涤”样品相比，“后洗涤”木茚定基膜的特征在于高两个数量级的电荷载流子迁移率。这强调了最小化破坏基于木质素的电子器件中的导电木质素网络的污染物的重要性。
We present a study of optical and electronic properties of solutions and films based on the fungi-derived pigment xylindein, extracted from decaying wood and processed without and with a simple purification step ("ethanol wash"). The "post-wash" xylindein solutions exhibited considerably lower absorption in the ultraviolet spectral range and dramatically reduced photoluminescence below 600 nm, due to removal of contaminants most likely to be fungal secondary metabolites. The "post-wash" xylindein-based films were characterized by two orders of magnitude higher charge carrier mobilities as compared to "pre-wash" samples. This underlines the importance of minimizing contaminants that disrupt the conductive xylindein network in xylindein-based electronic devices.