%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{10}

\bibitem{Li_etal2018} Li, X., Shen, K., Li, Q., Deng, Y., Zhu, P., \& Wang, D. (2018). Roll-over behavior in current-voltage curve introduced by an energy barrier at the front contact in thin film CdTe solar cell. \textit{Solar Energy}, \textit{165}, 27--34.

\end{thebibliography}

\end{document}

