Powder Technology Department, Korea Institute of Materials Science (KIMS), Changwon, Republic of Korea.
Langmuir. 2012 Sep 11;28(36):13127-35. doi: 10.1021/la302479x. Epub 2012 Aug 24.
As an alternative to vacuum deposition, preparation of highly conductive papers with aluminum (Al) features is successfully achieved by the solution process consisting of Al precursor ink (AlH(3){O(C(4)H(9))(2)}) and low temperature stamping process performed at 110 °C without any serious hydroxylation and oxidation problems. Al features formed on several kinds of paper substrates (calendar, magazine, and inkjet printing paper substrates) are less than ~60 nm thick, and their electrical conductivities were found to be as good as thermally evaporated Al film or even better (≤2 Ω/□). Strong adhesion of Al features to paper substrates and their excellent flexibility are also experimentally confirmed by TEM observation and mechanical tests, such as tape and bending tests. The solution processed Al features on paper substrates show different electrical and mechanical performance depending on the paper type, and inkjet printing paper is found to be the best substrate with high and stable electrical and mechanical properties. The Al conductive papers produced by the solution process may be applicable in disposal paper electronics.
通过由铝前体油墨（AlH(3){O(C(4)H(9))(2)})和在 110°C 进行的低温冲压工艺组成的溶液处理，可以替代真空沉积，成功制备具有铝（Al）特征的高导电性纸张，而不会出现严重的羟化和氧化问题。在几种纸基材（日历纸、杂志纸和喷墨打印纸基材）上形成的 Al 特征层厚度小于~60nm，其电导率与热蒸发 Al 薄膜相当，甚至更好（≤2Ω/□）。通过 TEM 观察和机械测试（如胶带和弯曲测试），实验证实了 Al 特征与纸基材之间的强附着力和出色的柔韧性。溶液处理后的 Al 特征在纸基材上的电性能和机械性能取决于纸张类型，喷墨打印纸是具有高且稳定的电性能和机械性能的最佳基材。通过溶液工艺制备的 Al 导电纸可能适用于可处理的纸电子器件。
