Dong Suk Kim

2 months ago | pubs.rsc.org | Dong Suk Kim |Yun Shin |Dong Gyu Lee |Jiwon Song

Damp-heat stable and efficient perovskite solar cells and mini-modules with tBP-free hole-transporting layer In spiro-OMeTAD-based hole-transporting layer (HTL) protocols, 4-tert-butylpyridine (tBP) constitutes an indispensable component; however, its inclusion engenders substantial detrimental ramifications, precluding realizing thermal stability. Here, a tBP-free spiro-OMeTAD approach was successfully devised by substituting ethylene carbonate (EC) electrolyte for tBP.