Abstract
Polyethyleneimine (PEI) with an amount of –NH2 groups used in precursor solution could effectively reduce Cu2+ volatilization during the pyrolysis process. Thermogravimetric analysis shows that the temperature window of low-temperature pyrolysis for precursor solution with PEI (PEI-YBCO) is widened significantly. The slower pyrolysis process can enrich Cu2+ and improve critical current density (Jc) of PEI-YBCO films. The highest Jc is 3.03 MA/cm2 at 77 K when the amount of PEI is 0.5 g/10 mL and the film thickness is 400 nm. Then the thickness increases from 0.4 to 2.0 μm by changing the coating times. The Jc values of PEI-YBCO films decrease gradually with the thickness increase. However, the critical current (Ic) can be up to 197 A/cm (at 77 K, self-field) and Jc can still keep 1.68 MA/cm2 at 1.2 μm.
Similar content being viewed by others
References
Foltyn, S., Civale, L., MacManus-Driscoll, J., Jia, Q., Maiorov, B., Wang, H., et al.: Materials science challenges for high-temperature superconducting wire. Nat. Mater. 6, 631–642 (2007)
Obradors, X., Puig, T.: Coated conductors for power applications: Materials challenges. Supercond. Sci. Technol. 27, 044003 (2014)
Chen, D.-X., Pardo, E., Sanchez, A., Bartolome, E., Puig, T., Obradors, X.: Magnetic properties of a melt-textured YBa2Cu3 O x ring with a perpendicular crack. Appl. Phys. Lett. 90, 072501 (2007)
Shiohara, Y., Taneda, T., Yoshizumi, M.: Overview of materials and power applications of coated conductors project. Jpn. J. Appl. Phys. 51, 010007 (2011)
Palmer, X., Pop, C., Eloussifi, H., Villarejo, B., Roura, P., Farjas, J., et al.: Solution design for low-fluorine trifluoroacetate route to YBa2Cu3 O 7 films. Supercond. Sci. Technol. 29, 024002 (2015)
Nakaoka, K., Yoshizumi, M., Usui, Y., Izumi, T., Shiohara, Y.: Improvement of production rate of YBCO coated conductors fabricated by TFA-MOD method. Phys. Procedia 58, 134–137 (2014)
Maiorov, B., Baily, S., Zhou, H., Ugurlu, O., Kennison, J., Dowden, P., et al.: Synergetic combination of different types of defect to optimize pinning landscape using BaZrO3,-doped YBa2Cu3 O 7. Nat. Mater. 8, 398–404 (2009)
Foltyn, S., Wang, H., Civale, L., Jia, Q., Arendt, P., Maiorov, B., et al.: Overcoming the barrier to 1000 A/cm width superconducting coatings. Appl. Phys. Lett. 87, 162505 (2005)
Wuwei, Y., Chengxiao, Z., Guofang, Z., Lihua, J., Chengshan, L., Guo, Y., et al.: Preparation of YBCO superconducting film by chemical solution deposition using a novel copper precursor derived from PEG (200) and sucrose. Rare Metal Mater. Eng. 40, 346–349 (2011)
Xu, W.C., Bai, Y.L., Fang, J.H., Cai, C.B.: The effect of polyethyleneimine (PEI) on the texture and morphology of YBCO films. In: Advanced Materials Research, pp. 103–106 (2014)
Jia, QX, McCleskey, TM, Burrell, AK, et al.: Polymer-assisted deposition of metal-oxide films. Nat. Mater., 529–532 (2004)
Dawley, J., Clem, P., Boyle, T., Ottley, L., Overmyer, D., Siegal, M.: Rapid processing method for solution deposited YBa2Cu3 O 7−δ thin films. Physica C: Supercond. 402, 143–151 (2004)
Wang, W., Li, G., Pu, M., Sun, R., Zhou, H., Zhang, Y., et al.: Chemical solution deposition of YBCO thin film by different polymer additives. Physica C: Supercond. 468, 1563–1566 (2008)
Erbe, M., Hänisch, J., Freudenberg, T., Kirchner, A., Mönch, I., Kaskel, S., et al.: Improved REBa2Cu3 O 7−x(RE = Y, Gd) structure and superconducting properties by addition of acetylacetone in TFA-MOD precursor solutions. J. Mater. Chem. 2, 4932–4944 (2014)
Chen, Y., Pan, B., Li, H., Zhang, W., Lv, L., Wu, J.: Selective removal of Cu(II) ions by using cation-exchange resin-supported polyethyleneimine (PEI) nanoclusters. Environ. Sci. Technol. 44, 3508–3513 (2010)
Lee, J.-W., Joo, Y.-S., Choi, S.-M., Yoo, S.-I.: Enhanced flux pinning properties of MODprocessed YBa2Cu3O7-delta thin films with BaZrO3 nanoparticles using a Ba-deficient coating solution. IEEE Trans. Appl. Supercond. 23, 4 (2013)
An, F.-q., Gao, B.-j., Liu, Q.: Determining structure of chelate complex of polyethyleneimine with cupric ion and its analysis application. Chin. J. Anal. Labor. 25, 115 (2006)
Funding
This work was supported by the National Natural Science Foundation of China (21571126, 51572165, 11174193 and 51202141) the Shanghai Key Laboratory of High Temperature Superconductors (14DZ2260700) and the Science and Technology Commission of Shanghai Municipality (16521108400, 16DZ0504300 and 14521102800).
Author information
Authors and Affiliations
Corresponding authors
Additional information
Jing Wang and Xiuping Yin contributed to the work equally and should be regarded as co-first authors.
Rights and permissions
About this article
Cite this article
Wang, J., Yin, X., Bai, YL. et al. Improved Superconducting Properties of Thick YBa2Cu3O7−δ Film by Adding Amino-Rich Polyethyleneimine in Precursor Solution. J Supercond Nov Magn 31, 3503–3508 (2018). https://doi.org/10.1007/s10948-018-4642-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-018-4642-7