Recent Advances in Spiro‐MeOTAD Hole Transport Material and Its Applications in Organic–Inorganic Halide Perovskite Solar Cells

• DOI: 10.1002/admi.201700623
• Publication Date: 2017-10-25T16:54:28Z
• Authors: Zafer Hawash; Luis K. Ono; Yabing Qi
• Keywords: 01 natural sciences; 7. Clean energy; 0104 chemical sciences

Abstract 2,2′,7,7′‐tetrakis‐(N,N‐di‐4‐methoxyphenylamino)‐9,9′‐spirobifluorene (spiro‐MeOTAD) hole transport material (HTM) is a milestone in the history of perovskite solar cells (PSCs). Proper choice HTMs key factor for efficient charge extraction and stability cells. Spiro‐MeOTAD proven to be most suitable HTM testing PSCs due its facile implementation high performance. Similarly, spiro‐MeOTAD receiving attention other applications than desirable properties. However, under debate regarding topics cost‐performance, long‐term stability, degradation issues (induced by temperature, additives, film quality, environmental conditions), coating technologies compatibility, reliance on hysteresis. In this review, advent spiro‐MeOTAD, related aforementioned about are discussed. addition, properties, alternative new applications, that comparable or outperforms summarized. outlook, future research directions based reported results warrant further investigations outlined.