Zhang Songlin, Leonhardt Branden E, Nguyen Nam, Oluwalowo Abiodun, Jolowsky Claire, Hao Ayou, Liang Richard, Park Jin Gyu
High-Performance Materials Institute, Florida State University 2005 Levy Ave. Tallahassee FL 32310 USA.
Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering 2525 Pottsdamer St. Tallahassee FL 32310 USA.
RSC Adv. 2018 Apr 3;8(23):12692-12700. doi: 10.1039/c8ra01212a.
Large scale manufacturing of electrically conductive carbon nanotube (CNT) sheets with production capability, low cost, and long-term electrical performance stability is still a challenge. A new method to fabricate highly conductive continuous buckypaper (CBP) with roll-to-roll production capability and relatively low cost is reported. The electrical conductivity of CBP can be improved to 7.6 × 10 S m by using an oxidant chemical ( HNO and I) doping method. To compensate for the conductivity degradation caused by the instability of the oxidant chemical doping, a polymer layer of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) was coated on the chemically doped CBP. The fabricated highly conductive CBP showed stable electrical performance in air for more than a month. This CBP material with high electrical conductivity, relatively low cost, and roll-to-roll manufacturing capability could enable a wide range of engineering applications including flexible conductors, electromagnetic interference (EMI) shielding materials, and electrodes in energy devices.
大规模制造具有生产能力、低成本且长期电性能稳定的导电碳纳米管（CNT）片材仍然是一项挑战。本文报道了一种具有卷对卷生产能力且成本相对较低的制造高导电连续巴基纸（CBP）的新方法。通过使用氧化剂化学（HNO和I）掺杂方法，CBP的电导率可提高到7.6×10 S m。为了补偿由氧化剂化学掺杂的不稳定性引起的电导率下降，在化学掺杂的CBP上涂覆了一层聚（3,4-乙撑二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT:PSS）聚合物层。所制备的高导电CBP在空气中表现出超过一个月的稳定电性能。这种具有高电导率、相对低成本和卷对卷制造能力的CBP材料可实现广泛的工程应用，包括柔性导体、电磁干扰（EMI）屏蔽材料以及能量装置中的电极。
