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2017 ; 10
(9
): ä Nephropedia Template TP
gab.com Text
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English Wikipedia
Hole-Transporting Materials for Printable Perovskite Solar Cells
#MMPMID28914823
Vivo P
; Salunke JK
; Priimagi A
Materials (Basel)
2017[Sep]; 10
(9
): ä PMID28914823
show ga
Perovskite solar cells (PSCs) represent undoubtedly the most significant
breakthrough in photovoltaic technology since the 1970s, with an increase in
their power conversion efficiency from less than 5% to over 22% in just a few
years. Hole-transporting materials (HTMs) are an essential building block of PSC
architectures. Currently,
2,2',7,7'-tetrakis-(N,N'-di-p-methoxyphenylamine)-9,9'-spirobifluorene), better
known as spiro-OMeTAD, is the most widely-used HTM to obtain high-efficiency
devices. However, it is a tremendously expensive material with mediocre hole
carrier mobility. To ensure wide-scale application of PSC-based technologies,
alternative HTMs are being proposed. Solution-processable HTMs are crucial to
develop inexpensive, high-throughput and printable large-area PSCs. In this
review, we present the most recent advances in the design and development of
different types of HTMs, with a particular focus on mesoscopic PSCs. Finally, we
outline possible future research directions for further optimization of the HTMs
to achieve low-cost, stable and large-area PSCs.