Crystal growth and morphology of perovskite can be controlled by taking advantage of the weak chemical interaction in the adduct. We have successfully fabricated highly reproducible CH 3 NH 3 PbI 3 perovskite solar
By using formamidine sulfinic acid (FSA) as a reducing agent and a solution of PEAI in toluene as an antisolvent (a method called "integration strategy"), they synthesized FA 0.85 Cs 0.15 Sn 0.5 Pb 0.5 I 3 films with improved morphologies compared to the control films, demonstrating a solar cell with a 17.4% PCE and excellent
Herein, we introduce iminodiacetic acid (IDA) to modify the SnO 2 ETL, yielding three key advantages: (1) IDA can neutralize excess –OH groups and passivate the defects in SnO 2, diminishing the decomposition of perovskite layer; (2) the IDA-modified SnO 2 exhibits superior electron conductivity and film quality, while providing improved energy
The resulting solar cells deliver comparable power conversion efficiencies: 14.0% for the cells fabricated using recycled PbI 2 and 14.7% for the cells constructed using commercial PbI 2. This work paves a new and feasible path to applying
The resulting solar cells deliver comparable power conversion efficiencies: 14.0% for the cells fabricated using recycled PbI 2 and 14.7% for the cells constructed using commercial PbI 2. This work paves a new and feasible path to applying recycled Pb sources in perovskite photovoltaics.
2 天之前· Scientists from the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland have fabricated a tandem solar cell based on a perovskite top cell and a heterojunction (HJT) bottom device
Additive engineering plays a vital role in enhancing perovskite solar cells (PSCs) by passivating defects within the perovskite films. Carboxyl and ester groups are commonly used for their strong binding with under-coordinated Pb2+ ions. However, the impact of additive acidity on the long-term stability of PSCs remains unclear. This study investigates the
Low-temperature solution-processed SnO2-based perovskite solar cells (PSCs) have achieved great progress recently, but they still suffer from a critical drawback due to the defects at the SnO2/perovskite interface. Herein, we report a facile acetic acid post-treatment strategy to effectively passivate the su
Herein, we introduce iminodiacetic acid (IDA) to modify the SnO 2 ETL, yielding three key advantages: (1) IDA can neutralize excess –OH groups and passivate the defects in SnO 2, diminishing the decomposition of
Additive engineering plays a vital role in enhancing perovskite solar cells (PSCs) by passivating defects within the perovskite films. Carboxyl and ester groups are
The authors review recent advances in inverted perovskite solar cells, with a focus on non-radiative recombination processes and how to reduce them for highly efficient and stable devices.
Here we report a route of pre-adsorbing a monolayer of a hydroxamic acid derivative on the surface of TiO 2 to improve the dye molecular packing and photovoltaic
Perovskite solar cells (PVSCs) have drawn unprecedented attention in the last decade due to their skyrocketed power conversion efficiency (PCE) (certified: 25.7%), low-temperature solution processibility, low cost, diverse applications for wearable devices, building-integrated photovoltaics (BIPV), and multijunction solar cells. 1-14 Moreover, the long-term
Crystal growth and morphology of perovskite can be controlled by taking advantage of the weak chemical interaction in the adduct. We have successfully fabricated highly reproducible CH 3 NH 3 PbI 3 perovskite solar cells with PCE as high as 19.7% via adducts of PbI 2 with oxygen-donor N,N′-dimethyl sulfoxide.
Degradation of the kinetically trapped bulk heterojunction film morphology in organic solar cells (OSCs) remains a grand challenge for their practical application. Herein, we demonstrate highly
The control slot-die-coated perovskite solar cell (PSC) produced 1.082 V open-circuit voltage (V oc), 24.09 mA cm –2 short current density (J sc), 71.13% fill factor (FF), and a maximum power conversion efficiency (PCE) of 18.54%. We systematically employed a multi-functional artificial amino acid (F-LYS-S) to modify the perovskite defects. Such amino acids
By using formamidine sulfinic acid (FSA) as a reducing agent and a solution of PEAI in toluene as an antisolvent (a method called "integration strategy"), they synthesized FA
Improving carrier mobilities of the formamidinium triiodide (FAPbI 3) perovskite layer is one of the state-of-the-art strategies to increase the photovoltaic performance of PSCs. Here, we employed this strategy thanks to the benzoic acid additive for anisole anti-solvent.
Improving carrier mobilities of the formamidinium triiodide (FAPbI 3) perovskite layer is one of the state-of-the-art strategies to increase the photovoltaic performance of PSCs. Here, we employed this strategy thanks to
Here we report a route of pre-adsorbing a monolayer of a hydroxamic acid derivative on the surface of TiO 2 to improve the dye molecular packing and photovoltaic performance of two newly designed...
In recent years, the halide perovskite materials have garnered significant scientific interest in renewable energy applications including solar cells, photodetectors, light-emitting devices [[1], [2], [3]].The perovskite solar cells (PSCs) compete with the conventional silicon solar cells due to their impressive power conversion efficiency (PCE), up to 25.7% in
Over the last decade, perovskite solar cells (PSCs) have achieved a certified power conversion efficiency (PCE) exceeding 26.1%, rivalling that of silicon-based solar cells [[1], [2], [3], [4]] spite this advancement, the stability of PSCs remains a concern due to the presence of numerous defects, such as MA + vacancies, I − vacancies, and uncoordinated Pb
Surface texturing for suppressing the reflection losses is the first and foremost step in the solar cell fabrication process. Over the years, multi-crystalline silicon (mc-Si) wafer solar cells dominated the PV market due to their cost-effectiveness. This article reviews various etching methods reported for texturing mc-Si wafers under the
Surface texturing for suppressing the reflection losses is the first and foremost step in the solar cell fabrication process. Over the years, multi-crystalline silicon (mc-Si) wafer
Perovskite solar cells (PSCs) that have a positive–intrinsic–negative (p–i–n, or often referred to as inverted) structure are becoming increasingly attractive for commercialization owing
MACE acid etched solar cells exhibited better performance than the acid textured DWS and acid textured MWSS cells with an overall enhancement in V O C and J S C of 0.7 mV and 0.64 mA/cm 2 and 1.8 mV and 0.29 mA/cm 2, respectively.
Low-temperature solution-processed SnO 2 -based perovskite solar cells (PSCs) have achieved great progress recently, but they still suffer from a critical drawback due to the defects at the SnO 2 /perovskite interface. Herein, we report a facile acetic acid post-treatment strategy to effectively passivate the surface defects.
Crystal growth and morphology of perovskite can be controlled by taking advantage of the weak chemical interaction in the adduct. We have successfully fabricated highly reproducible CH 3 NH 3 PbI 3 perovskite solar cells with PCE as high as 19.7% via adducts of PbI 2 with oxygen-donor N, N ′-dimethyl sulfoxide.
Through the utilization of an anisole and benzoic acid mixed antisolvent, a dense perovskite layer devoid of pinholes was achieved, providing a suitable base for the subsequent HTL deposition. This approach resulted in an interface with fewer charge defects, enhancing the efficiency of the solar cells.
However, PEDOT:PSS has undesirable characteristics that can negatively affect the stability and performance of the solar cells. The hygroscopicity associated with hydrophilicity may limit the grain size of the perovskite layers, and its acidity can erode the metal or conductive oxide layers (Fig. 12a–c).
Authors are thankful to Prof. K. L. Narasimhan, Prof. B. M. Arora, Mr. Sandeep Kumbhar, Mr. Almoazzam Khan and other students and staff members of the “Crystalline Silicon Solar Cells” group of NCPRE for the helpful discussions and guidance in preparing the review article.
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