Paragraphs

Capture paragraphs using <p> elements.

Example

<p> Halide perovskite solar cells (PSCs) were introduced in 2009, with demonstrated
efficiencies just below 4% [ <xref ref-type="bibr" rid="jpenergyacc892bib1">1</xref> ].
Since then, PSC efficiencies have grown rapidly, reaching over 25% for single junction
cells [ <xref ref-type="bibr" rid="jpenergyacc892bib2">2</xref> ], and over 30% for
tandem perovskite-on-silicon devices [ <xref ref-type="bibr" rid="jpenergyacc892bib3">3</xref> , <xref ref-type="bibr" rid="jpenergyacc892bib4">4</xref> ]. Scalability
potential towards PSC modules has been demonstrated, with pilot outdoor small scale
photovoltaic (PV) systems already being made [ <xref ref-type="bibr" rid="jpenergyacc892bib5">5</xref> , <xref ref-type="bibr" rid="jpenergyacc892bib6">6</xref> ]. Past experience based on organic PV device stability testing protocols
has accelerated the understanding of degradation and stability towards more stable PSC
devices [ <xref ref-type="bibr" rid="jpenergyacc892bib7">7</xref> , <xref ref-type="bibr" rid="jpenergyacc892bib8">8</xref> ]. </p>