You could study the working mechanism of solar cells, photocatalysts, and water splitting from the fundamental aspects of electromagnetics, physics, chemistry, optics and spectroscopy. The lecture series can be found in the following library.
https://www.youtube.com/playlist?list=PLvRLlEC27hVcPLIp0_SuiiQKuMYs9AMqV
You could study the topics on the photochemistry and spectroscopy from the fundamental aspects to various applications. This series is intended for senior undergrads and new to study this field. The lecture series can be found in the following library.
https://www.youtube.com/playlist?list=PLvRLlEC27hVfxp1oE2GKl1od3JASsdw4Q
「Excelで気軽に化学工学」を教科書として化学工学問題の解説を行っています。
https://www.youtube.com/watch?v=rFUhZE5_rSE&list=PLs7A7Xzkv9TvkQg7DGLoRZHv1dp71sQ9u
「Excelで操る！ここまでできる科学技術計算」を基に化学にかかわる数学的事項を解説しています。（学部低学年向け）
https://www.youtube.com/watch?v=GtBVCMWhpks&list=PLs7A7Xzkv9TuQjLj574bm2wq4_JxIKthl
こちらからダウンロード可能です。