In this work, a series of nickel oxide (NiOx) inks, in the perovskite antisolvent chlorobenzene (CB) containing 15% ethanol, were prepared for the fabrication of p-i-n perovskite solar cells by blade coating. The inks included triethylamine (Et3N) and alkyl xanthate salts as ligands to disperse NiOx particle aggregates and stabilize suspension. A total of four inks were evaluated: 0X (Et3N with no alkyl xanthate), 4X (Et3N + potassium n-butyl xanthate), 12X (Et3N + potassium n-dodecyl xanthate), and 18X (Et3N + potassium n-octadecyl xanthate). The inks were characterized by UV-visible spectroscopy and FT-IR spectroscopy and the resulting films analyzed by thermogravimetry and scanning electron microscopy. Devices prepared using the 0X ink resulted in a peak power conversion efficiency (PCE) of 14.47% (0.25 cm2) and 9.96 % (1 cm2). The 0X devices showed no significant loss of PCE after 100 days in a nitrogen flow box. Devices prepared with inks containing alkyl xanthate ligand had lower PCE that decreased with decreasing chain length, 18X > 12X > 4X.
Armstrong, Peter J., et al. "Solvation of NiO<sub>x</sub> for hole transport layer deposition in perovskite solar cells." Nanotechnology, vol. 33, no. 6, Nov. 2021. https://doi.org/10.1088/1361-6528/ac328e
Armstrong, Peter J., Chandrasekhar, Pakanati S., Chapagain, Sashil, Cline, Carmen M., van Hest, Maikel F. A. M., Druffel, Thad L., & Grapperhaus, Craig (2021). Solvation of NiO<sub>x</sub> for hole transport layer deposition in perovskite solar cells. Nanotechnology, 33(6). https://doi.org/10.1088/1361-6528/ac328e
Armstrong, Peter J., Chandrasekhar, Pakanati S., Chapagain, Sashil, et al., "Solvation of NiO<sub>x</sub> for hole transport layer deposition in perovskite solar cells," Nanotechnology 33, no. 6 (2021), https://doi.org/10.1088/1361-6528/ac328e
@article{osti_1829074,
author = {Armstrong, Peter J. and Chandrasekhar, Pakanati S. and Chapagain, Sashil and Cline, Carmen M. and van Hest, Maikel F. A. M. and Druffel, Thad L. and Grapperhaus, Craig},
title = {Solvation of NiO<sub>x</sub> for hole transport layer deposition in perovskite solar cells},
annote = {In this work, a series of nickel oxide (NiOx) inks, in the perovskite antisolvent chlorobenzene (CB) containing 15% ethanol, were prepared for the fabrication of p-i-n perovskite solar cells by blade coating. The inks included triethylamine (Et3N) and alkyl xanthate salts as ligands to disperse NiOx particle aggregates and stabilize suspension. A total of four inks were evaluated: 0X (Et3N with no alkyl xanthate), 4X (Et3N + potassium n-butyl xanthate), 12X (Et3N + potassium n-dodecyl xanthate), and 18X (Et3N + potassium n-octadecyl xanthate). The inks were characterized by UV-visible spectroscopy and FT-IR spectroscopy and the resulting films analyzed by thermogravimetry and scanning electron microscopy. Devices prepared using the 0X ink resulted in a peak power conversion efficiency (PCE) of 14.47% (0.25 cm2) and 9.96 % (1 cm2). The 0X devices showed no significant loss of PCE after 100 days in a nitrogen flow box. Devices prepared with inks containing alkyl xanthate ligand had lower PCE that decreased with decreasing chain length, 18X > 12X > 4X.},
doi = {10.1088/1361-6528/ac328e},
url = {https://www.osti.gov/biblio/1829074},
journal = {Nanotechnology},
issn = {ISSN 0957-4484},
number = {6},
volume = {33},
place = {United States},
publisher = {IOP Publishing},
year = {2021},
month = {11}}
National Renewable Energy Laboratory (NREL), Golden, CO (United States); Univ. of Louisville, KY (United States)
Sponsoring Organization:
National Institutes of Health (NIH); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office