采用溶剂热法合成银纳米线(AgNWs),通过控制反应温度、反应时间及离心转速,制得具有不同长径比的AgNWs。结果表明,当反应温度为160℃,反应时间为2h,离心转速为3000r/min时,可获得长径比高达1576的AgNWs。随后,将透过率为81.8%、方阻为15.3Ω/sq的AgNWs透明导电电极作为聚苯胺(PANI)薄膜的透明导电层,测试了PANI薄膜的电致变色和储能性能。归因于AgNWs层优异的透过率和导电性,PANI薄膜的电致变色光调制范围为42.6%;在0.2mA/cm2电流密度下,薄膜的比电容为16.82mC/cm2,展示出优异的电致变色和储能性能。该研究可为高长径比AgNWs的合成及应用提供参考。
Silver nanowires (AgNWs) were synthesized by solvothermal method,and AgNWs with different aspect ratios were produced by controlling the reaction temperature,reaction time and centrifugal speed.The results showed that when the reaction temperature was 160℃,the reaction time was 2hours,and the centrifugal speed was 3000r/min,AgNWs with a high aspect ratio of up to 1576 could be obtained.Subsequently,the transparent conductive electrode of AgNWs with a transmittance of 81.8% and a square resistance of 15.3Ω·sq-1 was used as the transparent conductive layer of polyaniline (PANI) thin film,and the electrochromic and energy storage properties of the PANI thin film was tested.Attributed to the excellent transmittance and conductivity of the AgNWs layer,the electrochromic optical transmittance modulation of the PANI thin film was 42.6%.The specific capacitance of the thin film was 16.82mC·cm-2 at a current density of 0.2mA·cm-2,demonstrating excellent electrochromic and energy storage properties.This study can provide a reference for the synthesis and application of high aspect ratio AgNWs.
[1] Sharma V,Sharma H,Singh S K,et al.Organic-inorganic hybrid structure as a conductive and transparent layer for energy and optoelectronic applications[J].ACS Applied Electronic Materials,2021,3(4):1601-1609.
[2] Dai P,Lu J,Tan M,et al.Transparent conducting indium-tin-oxide (ITO) film as full front electrode in Ⅲ—Ⅴ compound solar cell[J].Chinese Physics B,2017,26(3):037305.
[3] Kim D S,Jung J Y,Seo S,et al.Facile fabrication of multifunctional transparent electrodes via spray deposition of indium-tin-oxide nanoparticles[J].Applied Surface Science,2023,611(9):155756.
[4] Yoon H,Shin D S,Babu B,et al.Control of copper nanowire network properties and application to transparent conducting layer in LED[J].Materials & Design,2017,132:66-71.
[5] Chen M C,Chiou Y S,Chiu J M,et al.Marked improvement in the stability of small molecule organic photovoltaics by interfacial modification using self-assembled monolayers to prevent indium diffusion into the active layer[J].Journal of Materials Chemistry A,2013,1(11):3680-3687.
[6] Urper O,Çakmak ,Karatepe N.Fabrication of carbon nanotube transparent conductive films by vacuum filtration method[J].Materials Letters,2018,223:210-214.
[7] Lombardo V,D'Urso L,Mannino G,et al.Transparent conductive polymer obtained by in-solution doping of PEDOT∶PSS[J].Polymer,2018,155:199-207.
[8] Zhang H,Mischke J,Mertin W,et al.Graphene as a transparent conductive electrode in GaN-based LEDs[J].Materials,2022,15(6):2203.
[9] Arefpour M,Almasi Kashi M,Khansari Barzoki F,et al.Electrodeposited metal nanowires as transparent conductive electrodes:their release conditions,electrical conductivity,optical transparency and chemical stability[J].Materials & Design,2018,157:326-336.
[10] Ha H,Amicucci C,Matteini P,et al.Mini review of synthesis strategies of silver nanowires and their applications[J].Colloid and Interface Science Communications,2022,50:100663.
[11] Seo Y,Ha H,Matteini P,et al.A review on the deformation behavior of silver nanowire networks under many bending cycles[J].Applied Sciences,2021,11(10):4515.
[12] Han C J,Park B G,Suk Oh M,et al.Photo-induced fabrication of Ag nanowire circuitry for invisible,ultrathin,conformable pressure sensors[J].Journal of Materials Chemistry C,2017,5(38):9986-9994.
[13] Junaidi J,Saputra M W,Marjunus R,et al.The quenching and sonication effect on the mechanical strength of silver nanowires synthesized using the polyol method[J].Molecules,2021,26(8):2167.
[14] Li Y,Wang Y,Wu J,et al.Synthesis of silver nanowires using a polyvinylpyrrolidone-free method with an alpinia zerumbet leaf based on the oriented attachment mechanism[J].ACS Omega,2023,8(2):2237-2242.
[15] Gao D,Zhu J,Ye M,et al.Super wear-resistant and conductive cotton fabrics based on sliver nanowires[J].Journal of Industrial Textiles,2022,51(5-suppl):8227S-8245S.
[16] Jhansi K,Thomas N,Neelakantan L,et al.Controlling the aspect ratio of silver nanowires in the modified polyol process[J].Materials Letters,2023,344:134396.
[17] Wei J,Li X,Bian F,et al.Synthesis of high purity silver nanowires through a silver chloride-mediated polyol method[J].Inorganic Chemistry Communications,2022,146:110164.
[18] Zhang J,Kielbasa J E,Carroll D L.Nanostructure of the nanopores in anodic aluminum oxide films used as template to fabricate Ag nanowires[J].Journal of Materials Research,2011,24(5):1735-1740.
[19] Azani M R,Hassanpour A.Synthesis of silver nanowires with controllable diameter and simple tool to evaluate their diameter,concentration and yield[J].ChemistrySelect,2019,4(9):2716-2720.
[20] Xiang X Z,Gong W Y,Kuang M S,et al.Progress in application and preparation of silver nanowires[J].Rare Metals,2016,35(4):289-298.
[21] 杨聪颖,宋雨方,虞灿义,等.大直径高长径比银纳米线的合成及其性能[J].辽宁石油化工大学学报,2022,42(2):1-7.
[22] 郝喜才,杨贝,赵鑫玉,等.溶剂热法制备银纳米线研究进展[J].化工新型材料,2022,50(11):31-36.
[23] Niu Z,Cui F,Kuttner E,et al.Synthesis of silver nanowires with reduced diameters using benzoin-derived radicals to make transparent conductors with high transparency and low Haze[J].Nano Letters,2018,18(8):5329-5334.
[24] Liu B,Yan H,Chen S,et al.Stable and controllable synthesis of silver nanowires for transparent conducting film[J].Nanoscale Research Letters,2017,12(1):212.
[25] Liu X A,Wang J,Tang D,et al.A forest geotexture-inspired ZnO@Ni/Co layered double hydroxide-based device with superior electrochromic and energy storage performance[J].Journal of Materials Chemistry A,2022,10:12643-12655.
基金资助
国家自然科学基金项目(52002087);广西石化资源加工及过程强化技术重点实验室主任基金项目(2023Z004);“广西八桂学者”专项基金
PDF
