Wide‐Bandgap Organic–Inorganic Lead Halide Perovskite Solar Cells

Abstract

Under the groundswell of calls for the industrialization of perovskite solar cells (PSCs), wide-bandgap (>1.7 eV) mixed halide perovskites are equally or more appealing in comparison with typical bandgap perovskites when the former's various potential applications are taken into account. In this review, the progress of wide-bandgap organic-inorganic hybrid PSCs-concentrating on the compositional space, optimization strategies, and device performance-are summarized and the issues of phase segregation and voltage loss are assessed. Then, the diverse applications of wide-bandgap PSCs in semitransparent devices, indoor photovoltaics, and various multijunction tandem devices are discussed and their challenges and perspectives are evaluated. Finally, the authors conclude with an outlook for the future development of wide-bandgap PSCs.

Compositional texture engineering for highly stable wide-bandgap perovskite solar cells

“…The highest V oc values reached ~1.33 V, and fill factor (FF) reached 85% (fig. S2), both of which are among the best reported for 1.75-eV WBG PSCs ( 35 ). The stable power output (SPO) efficiency reached 20.1% (Fig.…”

Chemi‐Mechanically Peeling the Unstable Surface States of α‐FAPbI3

“…Organic‐inorganic metal halide perovskites (MHPs), due to their attractive characteristics, such as high absorption coefficient, controllable bandgaps, long carrier lifetimes, and high carrier mobility, [ 1–5 ] have been widely studied for fabricating high‐performance solar cells, light‐emitting devices, [ 6,7 ] and photodetectors. [ 8,9 ] As expected, the perovskite solar cells (PSCs) have achieved remarkable progress in power conversion efficiency (PCE), improving from 3.8% to 25.7%, which is now on par with the crystalline silicon solar cells (26.1%).…”

“…Organic-inorganic metal halide perovskites (MHPs), due to their attractive characteristics, such as high absorption coefficient, controllable bandgaps, long carrier lifetimes, and high carrier mobility, [1][2][3][4][5] have been widely studied for fabricating high-performance solar cells, light-emitting devices, [6,7] and photodetectors. [8,9] As expected, the perovskite solar cells In contrast to adding passivation agents to the surface, here in this work, we reported a facile and generic approach, termed as tape peel-zone (PZ), to implement dual functionalities of "taking" detrimental components and "giving" atomic encapsulation for the perovskite surface, which can dramatically improve the stability of α-FAPbI 3 perovskite against environmental stimuli.…”

Accelerated Formation of 2D Ruddlesden—Popper Perovskite Thin Films by Lewis Bases for High Efficiency Solar Cell Applications

“…In recent reports, the additive method has been employed to improve the performance of perovskites solar cells (PSCs), where the organic–inorganic 3D PSCs have surpassed PCE of 25%, forthcoming the performance of crystalline silicon solar cells [ 14 , 15 , 16 ]. However, stability issues still prevent the large-scale industrialization of 3D PSCs.…”