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Article
Chemistry, Physical
Yuhan Zhou et al.
Summary: This study proposes a buried interface modification strategy (BIMS) to improve the fabrication of tin perovskite films by inducing tailored two-dimensional perovskites at the buried interface. By forming a preferred crystal orientation and reducing interface defects, the perovskite solar cells (PSCs) achieved the highest power conversion efficiency (PCE) of 8.6%. The unencapsulated PSC also maintained 80% of its initial PCE after 600 hours of continuous illumination at high temperature.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
David P. McMeekin et al.
Summary: Achieving long-term stability is the key challenge for widespread commercialization of perovskite solar cells. This study introduces a high-temperature dimethyl-sulfoxide-free processing method to control the crystallization of perovskite films, effectively improving the material quality and operational stability of the devices. The encapsulated devices showed improved lifetimes, with a median T80 of 1,190 hours and a champion device reaching a T80 of 1,410 hours.
Article
Multidisciplinary Sciences
Jaewang Park et al.
Summary: Controlling the crystallinity and surface morphology of perovskite layers is crucial for achieving high-efficiency perovskite solar cells. By adding alkylammonium chlorides (RACl) to a-formamidinium lead iodide (FAPbI(3)), the crystallization process and surface morphology of the perovskite thin films can be controlled. The resulting perovskite thin layers facilitate the fabrication of perovskite solar cells with a high power-conversion efficiency of 26.08%.
Article
Chemistry, Multidisciplinary
Shurong Wang et al.
Summary: To solve the problems of uncontrollable crystallization process and facile oxidation of Sn2+, a series of acetates are introduced into the perovskite precursor solution. Formamidine acetate (FAAc) is found to have strong C(sic)O-Sn coordination with Sn2+, which can stabilize the lattice structure, minimize defect states, and suppress the oxidation of Sn2+. By introducing FAAc into the precursor, the power conversion efficiency of the device is increased from initially 9.84% to 12.43%, and it can maintain 94% of its initial value for 2000 hours in N2 atmosphere. This work provides a feasible strategy for depositing high-quality tin perovskite films, which is crucial for related photovoltaics and other optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ligang Xu et al.
Summary: Manipulating perovskite crystallization to prepare high-quality perovskite films is essential for achieving efficient and stable perovskite solar cells. By using a resonance hole-transporting material to modulate perovskite crystallization, high-performance inverted PSCs with power conversion efficiencies approaching 22% for small-area devices and up to 19.5% for large-area devices were produced, showing remarkably high stability without encapsulation.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Physical
Wanchun Xiang et al.
Summary: Metal halide perovskites are promising photovoltaic materials, and the intermediate phase during their fabrication plays a crucial role in determining the quality and performance of perovskite films. This review summarizes the research on the mechanism and applications of intermediate phase engineering (IPE) processes in various solution-processing technologies, and discusses the challenges and prospects of developing high-performance perovskite solar cells (PSCs) through IPE.
Article
Multidisciplinary Sciences
Shaun Tan et al.
Summary: Optoelectronic devices rely on heterointerfaces between different semiconducting materials, and the energy-level alignment between them plays a crucial role in device performance. Surface treatments for perovskite solar cells can impact the energetics of the heterointerface, potentially affecting device stability. Balancing the pros and cons of surface treatments is essential for improving PSC stability.
Article
Chemistry, Multidisciplinary
Wenxuan Lv et al.
Summary: A dynamic strategy to modulate perovskite film formation by using a soft perovskite-substrate interface is proposed. The soft interface, constructed by employing amphiphilic soft molecules, improves the wettability of the substrate and passivates defects in the perovskite lattice. This strategy leads to high-quality perovskite films and achieves high efficiency and stability in perovskite solar cells.
Article
Nanoscience & Nanotechnology
Wenbo Jia et al.
Summary: This research successfully improved the performance of tin-based perovskite solar cells by adding a reductive molecule DACl, which could modulate the crystallization process and inhibit Sn2+ oxidation. Additionally, the additive also helped regulate the crystallization process by decreasing the super saturation concentration and providing pre-nucleation sites. As a result, the DACl-derived solar cells achieved high power conversion efficiency and showed good stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Gengling Liu et al.
Summary: By incorporating 2-Guanidinoacetic acid (GAA), a new biocompatible chelating agent, the structural imperfections of Sn perovskites can be healed, resulting in improved efficiency and lifespan.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Zheng Zhang et al.
Summary: Lead-free tin perovskite solar cells (PKSCs) have low efficiency due to rough surface morphology and high number of defects. A posttreatment strategy using sequential passivation with acetylacetone (ACAC) and ethylenediamine (EDA) is proposed to reduce trap density, enlarge grain size, and regulate energy level. The study achieves a promising 13% efficiency with better stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Multidisciplinary Sciences
Qi Jiang et al.
Summary: In this study, a reactive surface engineering approach was used to enhance the performance of perovskite solar cells with an inverted structure. The resulting p-i-n solar cells showed a high power conversion efficiency of over 25% and remained stable after long-term operation under extreme conditions.
Article
Chemistry, Multidisciplinary
He Dong et al.
Summary: This study uses a reductive ionic liquid, methylamine formate (MAFa), to improve the efficiency and stability of tin-based solar cells. The results show that MAFa can slow down the crystallization process of the perovskite film, promote oriented growth, and suppress the oxidation of tin ions. The champion power conversion efficiency of the MAFa-modified solar cells is increased by 26.11% compared to the control cells, and they also demonstrate better stability under the same conditions.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Physical
Tahmineh Mahmoudi et al.
Summary: By incorporating nitrogen-doped graphene oxide (N(x)GO) in tin-based perovskite solar cells (PSCs), the stability and efficiency of the devices can be significantly improved. The inclusion of N(x)GO slows down the crystallization process and suppresses oxidation, resulting in high-quality films and enhanced device performance.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhenxi Wan et al.
Summary: The study reports a strategy of vacuum-assisted treatment of the Sn perovskite layer to self-heal defects in Sn perovskite, resulting in improved PCE, V-OC, and FF of Sn-based PVSCs. This work suggests a facile approach to inhibit defects in Sn-based devices, promoting the development of highly efficient Sn-based PVSCs.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Physical
Diego Di Girolamo et al.
Summary: Tin-based perovskites face stability issues due to oxidation of Sn(II) to Sn(IV), with dimethyl sulfoxide identified as a primary source of tin oxidation. By analyzing over 2000 solvents, a series of 12 new solvents suitable for processing FASnI3 were identified, leading to the production of solar cells outperforming those based on DMSO. This work provides guidance for further research on identifying new solvents for preparing stable tin-based perovskites.
ACS ENERGY LETTERS
(2021)
Review
Chemistry, Physical
Tianhao Wu et al.
Summary: Efficient and stable development of lead-free perovskite solar cells (PSCs) using tin as a promising candidate for high-performance, eco-friendly photovoltaic technology has been reviewed. Approaches toward efficiency improvement and challenges in reaching higher PCE and scalable production for tin PSCs have been discussed in this paper with the goal of accelerating their commercialization.
Article
Chemistry, Multidisciplinary
Bin-Bin Yu et al.
Summary: By modulating the microstructure of 2D/3D heterogeneous tin-perovskite absorber films through substituting FAI with FPEABr, the oxidation of Sn2+ to Sn4+ and defect density were effectively suppressed, leading to a remarkable increase in conversion efficiency from 9.38% to 14.81%.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Yang Sun et al.
Summary: The addition of urea as a prototypical Lewis base accelerates crystal growth kinetics by reducing activation energy, and enhances self-passivation of structural disorder during thermal annealing, leading to a shallower distribution of trap states.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Xianyuan Jiang et al.
Summary: This study improved the electron diffusion length and structural homogeneity of tin halide perovskite materials using a synthetic route, resulting in solar cells with a power conversion efficiency of 14.6%.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Physical
Junfang Wang et al.
Summary: Tin halide perovskites are promising candidates for lead-free perovskite solar cells due to their low toxicity, ideal energy bandgap, high charge carrier mobility, and long hot carrier lifetime. However, the certified efficiency of tin halide PSCs has not yet reached the theoretical expectation, largely due to the poor quality of the perovskite films. This review focuses on the crystallization kinetics of tin halide perovskites, discussing methods for improving film quality and presenting current challenges and prospects.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Guixiang Li et al.
Summary: The use of n-butylammonium acetate (BAAc) to modulate tin coordination in the crystallization process results in more compact and preferentially oriented perovskite films. Perovskite solar cells processed with BAAc show higher power conversion efficiency and improved stability, paving the way for controlled tin-based perovskite crystallization in lead-free photovoltaics.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Ligang Xu et al.
Summary: In this study, a vapor-incubation strategy was proposed to prepare high-performance tin perovskite films, leading to tin-based inverted PSCs with power conversion efficiency over 10% and high device stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Multidisciplinary
Ligang Xu et al.
Summary: Lead-based perovskite solar cells have excellent properties but the presence of lead hinders market prospects. Sn perovskites as alternatives are gaining attention, with inverted Sn-based PSCs showing cost-effectiveness and competitive efficiency, though challenges remain.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Chengbo Wang et al.
Summary: The illumination stability and efficiency of Sn-based perovskites have been substantially improved by synergistically introducing phenylhydrazine cation and halogen anions, resulting in a device with a power conversion efficiency of 13.4% and excellent long-term durability. This method offers a universal approach for enhancing the performance of Sn-based perovskites.
Article
Chemistry, Multidisciplinary
Tianhao Wu et al.
SCIENCE CHINA-CHEMISTRY
(2020)
Article
Multidisciplinary Sciences
Junming Li et al.
NATURE COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Makhsud I. Saidaminov et al.
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Physical
Peizhou Li et al.
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Bright Walker et al.
ADVANCED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Jin-Wook Lee et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Physical
Xiao Liu et al.
ACS ENERGY LETTERS
(2018)
Article
Chemistry, Multidisciplinary
Yuqin Liao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Multidisciplinary
Feng Hao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2015)
Article
Chemistry, Multidisciplinary
Nakita K. Noel et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2014)
Article
Optics
Feng Hao et al.