无机材料学报 ›› 2022, Vol. 37 ›› Issue (10): 1109-1115.DOI: 10.15541/jim20220030

所属专题: 【能源环境】量子点

• 研究论文 • 上一篇    下一篇

用于喷墨打印的Ag2Se墨水的制备及表征

张可忆1(), 郑琦1(), 王连军1, 江莞1,2()   

  1. 1.东华大学 材料科学与工程学院, 纤维改性国家重点实验室
    2.东华大学 功能材料研究中心, 上海 201620
  • 收稿日期:2021-01-18 修回日期:2022-02-22 出版日期:2022-10-20 网络出版日期:2022-07-08
  • 通讯作者: 江莞, 教授. E-mail: wanjiang@dhu.edu.cn;
    郑琦, 副教授. E-mail: qi.zheng@dhu.edu.cn
  • 作者简介:张可忆(1997-), 男, 硕士研究生. E-mail: zhangkeyiwork@outlook.com
  • 基金资助:
    中央高校基本科研业务费专项资金(2232020A-02);上海市教委科研创新重大项目(2021-01-07-00-03-E00110);上海市科委基础研究项目(20JC1415200)

Preparation and Characterization of Ag2Se-based Ink Used for Inkjet Printing

ZHANG Keyi1(), ZHENG Qi1(), WANG Lianjun1, JIANG Wan1,2()   

  1. 1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
    2. Institute of Functional Materials, Donghua University, Shanghai 201620, China
  • Received:2021-01-18 Revised:2022-02-22 Published:2022-10-20 Online:2022-07-08
  • Contact: JIANG Wan, professor. E-mail: wanjiang@dhu.edu.cn;
    ZHENG Qi, associate professor. E-mail: qi.zheng@dhu.edu.cn
  • About author:ZHANG Keyi (1997-), male, Master candidate. E-mail: zhangkeyiwork@outlook.com
  • Supported by:
    Fundamental Research Funds for the Central Universities(2232020A-02);Innovation Program of Shanghai Municipal Education Commission(2021-01-07-00-03-E00110);Shanghai Science & Technology Committee(20JC1415200)

摘要:

制备硒化银(Ag2Se)薄膜材料对于组装微型器件至关重要, 目前大部分制备方法难以精确控制薄膜尺寸并进行图案化设计, 喷墨打印技术成为解决这一问题的有效方法, 实现其与Ag2Se材料的组合具有重要意义。本工作通过溶剂热法制备了Ag2Se纳米颗粒, 再与不同分散剂混合以筛选出适用于喷墨打印的稳定墨水, 进一步调节喷射参数以优化打印过程中墨滴的形态, 提高打印质量。将墨水打印至聚酰亚胺衬底上, 经热处理后制备得到Ag2Se薄膜。使用不同手段对其物相与微结构进行表征, 并测试不同打印层数薄膜的电学性能。结果表明: 随着墨水固含量与打印层数增加, Ag2Se薄膜的结晶度和致密度得到明显提升, 电导率也得到相应提高, 这主要源于薄膜内部Ag2Se纳米颗粒沉积量与堆积密集程度增加。当使用固含量为5 mg·mL-1的墨水进行打印, 打印层数为40层时, Ag2Se薄膜的电导率达到399 S·cm-1, 表现出较高的导电性能。本研究为制备Ag2Se基薄膜材料与器件提供了新的方向。

关键词: 喷墨打印, Ag2Se, 墨水, 电导率

Abstract:

Preparation of silver selenide (Ag2Se) based thin films is significant to the micro devices. However, most of reported methods for preparing Ag2Se films have not achieved the accuracy control and flexible pattern design of films. Inkjet printing technology is believed to provide a valid approach to solve this problem by which combination Ag2Se and inkjet printing technology shows high value and importance. In this work, Ag2Se nanoparticles were synthesized by solvothermal method and then dispensed into different solvents to obtain the ink with high stability. Jetting parameters were further developed to achieve the jetting of Ag2Se ink and optimize the morphology of droplets. Ag2Se thin films were prepared on polyimide substrates via inkjet printing with different printing layers. As-printed films were finally annealed to increase the crystalline and density. The phase and surface morphology of Ag2Se films were characterized and the electrical conductivity of the films was measured by using four-probe measurement. Ag2Se films can achieve higher density and crystallinity with ink concentration and printing layers increasing, which leads to higher electrical conductivity. Improvement of structure and performance of Ag2Se films result from the increasing deposition and stacking density of Ag2Se nanoparticles. The electrical conductivity of inkjet-printed Ag2Se film can reach as high as 399 S·cm-1 at the ink concentration of 5 mg·mL-1 and the number of printing layers of 40, which provides a new orientation to prepare Ag2Se based films and devices.

Key words: inkjet printing, Ag2Se, ink, electrical conductivity

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