Liu Bingyang, Li Pengfei, Zeng Jinsong, Li Jinpeng, Chen Kefu
Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510640, PR China.
Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510640, PR China; School of Environment and Energy, South China University of Technology, Guangzhou 510640, PR China.
Carbohydr Polym. 2025 Jun 1;357:123479. doi: 10.1016/j.carbpol.2025.123479. Epub 2025 Mar 6.
Significant advancements in flexible photoelectric devices have been achieved through extensive research on flexible transparent conductive electrodes (FTCEs) based on silver nanowires (AgNWs). However, two key challenges that need to be addressed are the high contact resistance of AgNWs and poor interface adhesion between AgNWs and the flexible substrate. In this study, we present a composite electrode comprising polydopamine-grafted cellulose nanofibers (PDA-TCNF) and AgNWs, fabricated through an interface customization strategy combined with UV-induced plasma welding. To enhance interfacial crosslinking, N, N-bis(acryloyl)cysteamine (BACA) was introduced as a surface adsorbate for AgNWs. The composite electrode exhibited rapid plasma welding of AgNWs under low-intensity UV irradiation. The optimized PDA-TCNF/AgNW-S/3 electrode demonstrated a sheet resistance of 7.26 Ω sq. with a remarkable light transmittance of 85.7 %. The interface customization strategy facilitated enhanced diffusion of silver atoms at AgNW junctions during UV-induced heating, thereby strengthening their welding capability. These electrodes serve as high-performance FTCEs for electroluminescent devices and transparent electric heaters. Our work proposes a simple method to fabricate superior FTCEs by integrating nanocellulose with AgNWs, offering a promising environmentally friendly material for flexible optoelectronic applications.
通过对基于银纳米线（AgNWs）的柔性透明导电电极（FTCEs）进行广泛研究，柔性光电器件取得了重大进展。然而，需要解决的两个关键挑战是AgNWs的高接触电阻以及AgNWs与柔性基板之间较差的界面附着力。在本研究中，我们展示了一种由聚多巴胺接枝纤维素纳米纤维（PDA-TCNF）和AgNWs组成的复合电极，该电极通过界面定制策略结合紫外线诱导的等离子体焊接制备而成。为了增强界面交联，引入N，N-双（丙烯酰基）半胱胺（BACA）作为AgNWs的表面吸附物。该复合电极在低强度紫外线照射下表现出AgNWs的快速等离子体焊接。优化后的PDA-TCNF/AgNW-S/3电极的方阻为7.26Ω/sq，具有85.7%的显著透光率。界面定制策略促进了紫外线诱导加热过程中银原子在AgNW结处的扩散增强，从而增强了它们的焊接能力。这些电极可作为用于电致发光器件和透明电加热器的高性能FTCEs。我们的工作提出了一种通过将纳米纤维素与AgNWs集成来制造优质FTCEs的简单方法，为柔性光电子应用提供了一种有前景的环保材料。
