Chemically treated and coated paper, as well as cellulose fibres reconstituted from wood, have been used to make a variety of low-cost, printable electronic devices such as solar cells and battery electrodes, and woody materials have been the source of porous activated carbons for devices such as electrochemical capacitors¹. The performance might not always equal that of more highly engineered materials, but the cheapness, abundance and green credentials provide considerable compensation. Some of the most intriguing electronic applications take advantage of wood’s natural micro- and nanostructures — for example, exploiting the possibility of transporting ions in channel-like and three-dimensional structures to create electrochemical devices^2,3.

经过化学处理和涂层的纸张，以及从木材中重组的纤维素纤维，已被用于制造各种低成本、可印刷的电子设备，如太阳能电池和电池电极，木质材料已成为多孔活性炭的来源电化学电容器等装置¹．性能可能并不总是与更高工程材料的性能相同，但廉价、丰富和绿色证书提供了可观的补偿。一些最有趣的电子应用利用了木材的天然微观和纳米结构——例如，利用在通道状和三维结构中传输离子的可能性来制造电化学装置^2,3。