**Section IV: Photovoltaic Thin Films**

Chapter 8, "Solution-Processed Chalcogenide Photovoltaic Thin Films" by Marcos Antonio Santana Andrade Junior, Hugo Leandro Sousa dos Santos, Mileny dos Santos Araujo, Arthur Corrado Salomão and Lucia Helena Mascaro, discusses the two most reported techniques used to prepare world-record efficiencies of solution-processed chalcogenide solar cells: spin-coating and spray-coating.
