Methylammonium Chloride Induces Intermediate Phase Stabilization for Efficient Perovskite Solar Cells …
Methylammonium Chloride Induces Intermediate Phase ...
Methylammonium-free perovskite solar cells
Methylammonium Chloride Induces Intermediate Phase ...
Methylammonium-free, high-performance, and stable …
Hybrid perovskite solar cells often use the more thermally stable formamidinium (FA) cation rather than methylammonium, but its larger …
High-performance methylammonium-free ideal-band-gap perovskite solar cells
We report the use of a complex additive, SnCl2⋅3FACl, to assist the growth of high-quality near ideal-band-gap (∼1.34 eV) methylammonium-free Sn-Pb mixed halide perovskite thin films. The use of this additive leads to improved grain morphology, reduced defect density, and suppressed development of residual stress in the Sn-Pb perovskite …
Rubidium Iodide Reduces Recombination Losses in Methylammonium-Free Tin-Lead Perovskite Solar Cells
Herein, we systematically investigated the structural and optoelectronic properties, as well as the solar cell performance, of the MA-free perovskite FA 0.83 Cs 0.17 Sn 0.5 Pb 0.5 I 3 with introduction of the alkali metal salt …
Efficient and Stable Methylammonium-Free Tin-Lead Perovskite Solar Cells …
Incorporating non-aqueous hole-transporting materials (HTMs) to replace the widely used PEDOT:PSS is favorable for improving the stability of tin-lead perovskite solar cells (Sn-Pb PSCs). Herein, hexaazatrinaphthylene (HATNA) is found to be a promising HTM building block for Sn-Pb PSCs. By introducing triphenylamine (TPA) and …
High-performance methylammonium-free ideal-band-gap perovskite solar cells
Article High-performance methylammonium-free ideal-band-gap perovskite solar cells Jinhui Tong,1,8 Jue Gong,2,8 Mingyu Hu,2 Srinivas K. Yadavalli,2 Zhenghong Dai,2 Fei Zhang,1 Chuanxiao Xiao,3 Ji Hao,1 Mengjin Yang,3 Michael A. Anderson,4 Erin L. Ratcliff,4,5,6 Joseph J. Berry,3 ...
Homogenizing Morphology and Composition of …
A facile and eco-friendly dimethyl sulfoxide-mediated solution aging (DMSA) treatment is presented to control the crystallization dynamics of …
Applied Sciences | Free Full-Text | Methylammonium …
During recent years, power conversion efficiencies (PCEs) of organic-inorganic halide perovskite solar cells (PSCs) have shown remarkable progress. The emergence of various thin film deposition …
Multicomponent Approach for Stable Methylammonium-Free …
This study employs a multicomponent approach to address these issues, developing methylammonium-free tin–lead perovskite solar cells with improved …
Reducing photovoltage loss at the anode contact of methylammonium-free inverted perovskite solar cells …
The efficiency of perovskite solar cells (PSCs) has developed rapidly in recent years, but the stability has still lagged behind. The ion migration effect, especially from small methylammonium (MA) cations, is a main factor for stability issues, and the use of MA-free perovskites is one potential pathway to
Suppressing charge recombination in a methylammonium-free wide-bandgap perovskite film for high-performance and stable perovskite solar cells ...
Wide-bandgap (WBG) formamidinium–cesium (FA–Cs) hybrid lead iodide–bromide mixed perovskites (∼1.7 eV) have gained great attention with the potential of enabling highly efficient tandem photovoltaics when integrated with crystalline silicon and other low-bandgap solar cells. However, their power conversion e
Defect mitigation using d-penicillamine for efficient methylammonium-free perovskite solar cells …
Trap-dominated non-radiative charge recombination is one of the key factors that limit the performance of perovskite solar cells (PSCs), which was widely studied in methylammonium (MA) containing PSCs. However, there is a need to elucidate the defect chemistry of thermally stable, MA-free, cesium/formamidini
Multisource Vacuum Deposition of Methylammonium-Free Perovskite Solar Cells …
Halide perovskites of the form ABX3 have shown outstanding properties for solar cells. The highest reported compositions consist of mixtures of A-site cations methylammonium (MA), formamidinium (FA) and cesium, and X-site iodide and bromide ions, and are produced by solution processing. However, it is unclear whether solution …
Simultaneous achievement of defect passivation and carrier transport promotion by using emerald salt for methylammonium-free perovskite solar cells
Defect passivation along with promoted charge transport is potentially an effective but seldom exploited strategy for high-performance perovskite solar cells (PSCs). Herein, the in situ defect passivation and carrier transport improvement are simultaneously realized by introducing a conductive polymer (i.e., emerald salt, ES) into the precursor …
Minimizing voltage deficit in Methylammonium-Free perovskite solar cells …
Methylammonium-free perovskite solar cells have attracted a great deal of attention owing to the optimal bandgap towards the Shockley-Queisser optimum and the improved thermal stability of FAPbI 3 based perovskite. Nevertheless, MA …
Bimolecular Crystallization Modulation Boosts the Efficiency and Stability of Methylammonium‐Free Tin–Lead Perovskite and All‐Perovskite ...
The modified NBG perovskite solar cells deliver a power conversion efficiency (PCE) of 22.14%. Coupled with the wide-bandgap (WBG) subcell, the all-perovskite TSCs give a champion certified PCE of 27.15%, which is the highest certified PCE for MA-free all
Methylammonium-free wide-bandgap metal halide perovskites for …
In this Review, we highlight the challenges related to methylammonium-free perovskites, including the energy-loss pathways that currently constrain their open …
Defect passivation in methylammonium/bromine free inverted …
Molecular passivation is promising for improving the performance and operation stability of perovskite solar cells. Here, authors employ piperazine …
Methylammonium-free wide-bandgap metal halide perovskites for …
Fig. 3: Single-junction performance for methylammonium-free perovskite solar cells as a function of their bandgap. The dashed line indicates the detailed-balance limit for each device parameter.