Sustainable, Efficient, and Scalable Preparation of Pure and Performing Spiro-OMeTAD for Perovskite Solar Cells

• DOI: 10.1021/acssuschemeng.2c00493
• Publication Date: 2022-03-31T21:28:56Z
• Authors: Sara Mattiello; Giulia Lucarelli; Adiel Calascibetta; Lorenzo Polastri; Erika Ghiglietti; Suresh Kumar Poda...; Thomas M. Brown; Mauro Sassi; Luca Beverina
• Keywords: Reactions in water; E-Factor; Perovskite solar cells; Micellar catalysis; Settore ING-INF/01 - ELETTRONICA; 02 engineering and technology; 0210 nano-technology; E-Factor; Hole transporting material; Micellar catalysis; Perovskite solar cells; Reactions in water;; 7. Clean energy; Hole transporting material; 12. Responsible consumption

The technology of organometal halide perovskites is on the verge lab to fab transition due particularly high efficiencies and low cost raw materials employed in active later. hole transport layer a key enabling component such solar cells at same time one requiring more significant synthetic efforts. Alternative with improved sustainability are under constant development, yet 2,2′,7,7′-tetrakis(N,N-di(4-methoxyphenyl)amino)-9,9′-spirobifluorene (Spiro-OMeTAD) still represents standard field. We show that combination solventless approaches, chemistry water, micellar catalysis gives access critical material fully sustainable, scalable, efficient way. Performances validated devices delivering results equal those commercial Spiro-OMeTAD but greatly reducing overall E-factor─a green metric measuring waste/purified product ratio synthesis, from 5299 555, as well eliminating chlorinated solvents hazardous chemicals.