Ontology highlight
ABSTRACT:
SUBMITTER: Khan MT
PROVIDER: S-EPMC7820557 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Khan Mohd Taukeer MT Huang Peng P Almohammedi Abdullah A Kazim Samrana S Ahmad Shahzada S
iScience 20201231 2
We have unlocked the mechanistic behavior of negative capacitance in perovskite solar cells (PSCs) by analyzing impedance spectra at variable photovoltage and applied bias, temperature-dependent capacitance versus frequency (<i>C-f</i>) spectra, and current-voltage (<i>J-V</i>) characteristics. We noted that <i>p-i-n</i> type PSCs having PEDOT:PSS or PTAA as hole transport layer display negative capacitance feature at low and intermediate frequencies. The activation energies (<i>E</i> <sub><i>a< ...[more]