中国物理B ›› 2022, Vol. 31 ›› Issue (10): 107305-107305.doi: 10.1088/1674-1056/ac67ca

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Epitaxial Bi2Sr2CuOy thin films as p-type transparent conductors

Chen Zhou(周臣)1,2, Wang-Ping Cheng(程王平)1,2, Yuan-Di He(何媛娣)1,2, Cheng Shao(邵成)1, Ling Hu(胡令)1, Ren-Huai Wei(魏仁怀)1,†, Jing-Gang Qin(秦经刚)3,‡, Wen-Hai Song(宋文海)1,§, Xue-Bin Zhu(朱雪斌)1, Chuan-Bing Cai(蔡传兵)4, and Yu-Ping Sun(孙玉平)1,5,6   

  1. 1. Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2. University of Science and Technology of China, Hefei 230026, China;
    3. Institute of Plasma Physics, Chinese Academy of Sciences, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    4. Physics Department, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China;
    5. High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    6. Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2022-03-16 修回日期:2022-04-11 出版日期:2022-10-16 发布日期:2022-09-16
  • 通讯作者: Ren-Huai Wei, Jing-Gang Qin, Xue-Bin Zhu E-mail:rhwei@issp.ac.cn;qinjg@ipp.ac.cn;xbzhu@issp.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11604337).

Epitaxial Bi2Sr2CuOy thin films as p-type transparent conductors

Chen Zhou(周臣)1,2, Wang-Ping Cheng(程王平)1,2, Yuan-Di He(何媛娣)1,2, Cheng Shao(邵成)1, Ling Hu(胡令)1, Ren-Huai Wei(魏仁怀)1,†, Jing-Gang Qin(秦经刚)3,‡, Wen-Hai Song(宋文海)1,§, Xue-Bin Zhu(朱雪斌)1, Chuan-Bing Cai(蔡传兵)4, and Yu-Ping Sun(孙玉平)1,5,6   

  1. 1. Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2. University of Science and Technology of China, Hefei 230026, China;
    3. Institute of Plasma Physics, Chinese Academy of Sciences, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    4. Physics Department, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China;
    5. High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    6. Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2022-03-16 Revised:2022-04-11 Online:2022-10-16 Published:2022-09-16
  • Contact: Ren-Huai Wei, Jing-Gang Qin, Xue-Bin Zhu E-mail:rhwei@issp.ac.cn;qinjg@ipp.ac.cn;xbzhu@issp.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11604337).

摘要: Development of p-type transparent conducting thin films is tireless due to the trade-off issue between optical transparency and conductivity. The rarely concerned low normal state resistance makes Bi-based superconducting cuprates the potential hole-type transparent conductors, which have been realized in Bi2Sr2CaCu2Oy thin films. In this study, epitaxial superconducting Bi2Sr2CuOy and Bi2Sr1.8Nd0.2CuOy thin films with superior normal state conductivity are proposed as p-type transparent conductors. It is found that the Bi2Sr1.8Nd0.2CuOy thin film with thickness 15 nm shows an average visible transmittance of 65% and room-temperature sheet resistance of 650 Ω/sq. The results further demonstrate that Bi-based cuprate superconductors can be regarded as potential p-type transparent conductors for future optoelectronic applications.

关键词: p-type, transparent conductor, sol-gel, Bi-2201

Abstract: Development of p-type transparent conducting thin films is tireless due to the trade-off issue between optical transparency and conductivity. The rarely concerned low normal state resistance makes Bi-based superconducting cuprates the potential hole-type transparent conductors, which have been realized in Bi2Sr2CaCu2Oy thin films. In this study, epitaxial superconducting Bi2Sr2CuOy and Bi2Sr1.8Nd0.2CuOy thin films with superior normal state conductivity are proposed as p-type transparent conductors. It is found that the Bi2Sr1.8Nd0.2CuOy thin film with thickness 15 nm shows an average visible transmittance of 65% and room-temperature sheet resistance of 650 Ω/sq. The results further demonstrate that Bi-based cuprate superconductors can be regarded as potential p-type transparent conductors for future optoelectronic applications.

Key words: p-type, transparent conductor, sol-gel, Bi-2201

中图分类号:  (Electrical properties of specific thin films)

  • 73.61.-r
78.20.-e (Optical properties of bulk materials and thin films) 81.20.Fw (Sol-gel processing, precipitation) 81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy)