Defects both in bulk and at the interfaces serve as charge trapping sites for nonradiative recombination and as ion migration pathways, resulting in degradation of perovskite solar cell efficiency and stability. In this work, a strategy for simultaneous passivation of both bulk and interfacial defects is reported.
Synergic electron and defect compensation on Sn perovskites has been realized via alloying heterovalent metal halide salts.
However, the Sn perovskites are notorious to feature heavy p-doping characteristics and possess abundant vacancy defects, which result in under-optimized interfacial energy level alignment and severe nonradiative recombination.
The authors declare no conflict of interest. Abstract Sn perovskite solar cells have been regarded as one of the most promising alternatives to the Pb-based counterparts due to their low toxicity and excellent optoelectronic properties. Howev...
The improved storage and thermal stability of PS-modified devices is due to the incorporation of PS into the perovskite thin film. Firstly, PS is hydrophobic in nature, this can be beneficial in protecting the perovskite layer from moisture ingress, which is one of the main causes of degradation in perovskite solar cells.
The PS-bottom passivated devices showed an average efficiency of 19.4%. These efficiency values are very close to PS-modified perovskite solar cell efficiencies (19.5%). This suggests the bottom interface does not need much passivation.
Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells …
Combining the effects of strain compensation and diffusion passivation, the stabilized 2D/3D perovskite solar cells deliver a reproducible and robust laboratory power conversion efficiency …
Synergic Electron and Defect Compensation Minimizes Voltage …
Synergic electron and defect compensation on Sn perovskites has been realized via alloying heterovalent metal halide salts, which concurrently optimized the interfacial carrier …
YOLOv8
To address issues of low detection accuracy and high false-positive and false-negative rates in solar cell defect detection, this paper proposes an optimized solar cell electroluminescent (EL) …
Synergic Electron and Defect Compensation Minimizes Voltage …
Synergic electron and defect compensation on Sn perovskites has been realized via alloying heterovalent metal halide salts. This concurrently optimized the interfacial carrier …
Synergistic Passivation of Bulk and Interfacial Defects Improves ...
A small molecule and polymer chains effectively passivate defects at the interfaces and in the bulk, respectively, in a lead halide perovskite solar cell. By decoupling the …
Defect Compensation and Lattice Stabilization Enables High …
Tin halide perovskite solar cells (PSCs) are regarded as the most promising lead-free alternatives for photovoltaic applications. However, they still suffer from uncompetitive photovoltaic …
Charged defect management for high-efficiency planar solar cells ...
5 · To synchronously suppress trap-assisted nonradiative and interfacial charge recombination losses in n-i-p planar perovskite solar cells (PSCs), the development of high …
Defect compensation in formamidinium–caesium perovskites for …
The excessive AX does not improve the initial solar cell efficiency. It compensates iodide vacancies and suppresses ion migration and defects generation during …
International conference on defects in semiconductors
Held in Oslo, ICDS-31 will facilitate stimulating discussions on defects in materials for micro- and optoelectronics, quantum computing, photovoltaics, and other …
Dual Functions of Crystallization Control and Defect Passivation ...
Perovskite solar cells (PSCs), a game-changer, in the advancement of third-generation solar cells with their certified efficiency of 23%, which possess the benefited …
Synergistic defect passivation and strain compensation toward …
Elimination of parasitic effects in floating junction rear surface passivation for solar cells; Sulfur passivation of 3C-SiC thin film; Passivation and Surface Film Formation; Effect of the Potential …
Simultaneous Interface Passivation and Defect Compensation for …
In perovskite solar cells, the interfaces between the perovskite and charge-transporting layers contain high concentrations of defects (about 100 times that within the …
Scholarly Article or Book Chapter | Defect compensation in ...
Defect compensation in formamidinium–caesium perovskites for highly efficient solar mini-modules with improved photostability Scholarly Article or Book Chapter | Defect compensation …
Defect Regulation of Low‐Temperature‐Processed CsPbI2Br …
This study underscores the potential of silane-based additives in defect passivation for all-inorganic perovskites, providing a viable route for the advancement of high …
Defect Compensation and Lattice Stabilization Enables High …
Tin halide perovskite solar cells (PSCs) are regarded as the most promising lead-free alternatives for photovoltaic applications. However, they still suffer from …
Synergistic defect passivation and strain compensation toward …
Organic-inorganic hybrid metal halide perovskite solar cells (PSCs) have garnered significant attention as one of the most promising photovoltaic technologies. Over the …
Synergic Electron and Defect Compensation …
Synergic electron and defect compensation on Sn perovskites has been realized via alloying heterovalent metal halide salts. This concurrently optimized the interfacial carrier dynamics, compensated the prevailing vacancy defects and …
Self-regulation of charged defect compensation and formation …
where is the formation energy when the Fermi energy level is at the valence band maximum (VBM) and the atomic chemical potentials of the elements have the energies of …
Synergic Electron and Defect Compensation Minimizes
Request PDF | Synergic Electron and Defect Compensation Minimizes Voltage Loss in Lead-Free Perovskite Solar Cells | Sn perovskite solar cells have been regarded as …
Synergic Electron and Defect Compensation …
Here, we reported a synergic "electron and defect compensation" strategy to simultaneously modulate the electronic structures and defect profiles of Sn perovskites via incorporating a traced amount (0.1 mol %) …
Defect compensation in formamidinium–caesium …
In contrast, the existence of shallow defects in ionic perovskite crystals might have significant repercussions on the long-term stability of perovskite solar cells (PSCs) because of the ...
Simultaneous interface passivation and defect compensation for …
The interface key factors such as defect density and thickness of CsPbI 2 Br, SnO 2 and CuI, interface defect density and band offset at SnO 2 /CsPbI 2 Br and CsPbI 2 …
Simultaneous Interface Passivation and Defect Compensation for …
Interfacial defects at the electron transport layer (ETL) and perovskite interface significantly impact the interface carrier dynamics and thus the performance of planar perovskite solar cells. Here, …
Dual Functions of Crystallization Control and Defect Passivation ...
The fabrication of perovskite films with high crystallization quality, less defects, and fewer grain boundaries (uncoordinated ions) is one critical step to obtain excellent power conversion …
Synergistic defect passivation and strain compensation toward …
In perovskite solar cells, the interfaces between the perovskite and charge-transporting layers contain high concentrations of defects (about 100 times that within the …
Simultaneous interface passivation and defect compensation for …
Interfacial defects at the electron transport layer (ETL) and perovskite interface significantly impact the interface carrier dynamics and thus the performance of planar …
Projects at LENS/The Semiconductor Physics Group
The Norwegian Research Centre for Solar Cell Technology (Solar United) Methodology for Interface and Defect Assessments in Semiconductors using a combination of synchrotron …
Compensation Engineering for Silicon Solar Cells
Si solar cells is around 1-1.5 cm, which can be achieved by adding boron to the Si melt so that its final concentration in the crystal is in the vicinity of 1 10 16 cm -3 . The general agreement ...
Synergic Electron and Defect Compensation Minimizes Voltage …
Synergic electron and defect compensation on Sn perovskites has been realized via alloying heterovalent metal halide salts. This concurrently optimized the interfacial carrier dynamics, …
Ionic compensation for defect reduction and enhanced
Request PDF | On Feb 1, 2023, Kun Cao and others published Ionic compensation for defect reduction and enhanced performance of tin-based perovskite solar cells | Find, read and cite all …
Ionic compensation strategy for High-Performance
Request PDF | Ionic compensation strategy for High-Performance Mesoporous Perovskite Solar Cells: healing defects with tri-iodide ions in solvent vapor annealing process | …
Effects of absorber near-interface compensation on Cd(Se,Te) solar cell ...
The effective lifetime τ defect associated with a given defect concentration is calculated using the following equation [29]: (1) τ = 1 N t σ v where N t is the concentration of …
Streamlined Phase Transition and Reaction Compensation in …
Perovskite solar cells (PSCs) represent a promising technology for next‐generation photovoltaics, yet scaling up from laboratory to industrial production via the solution spin‐coating method …
Metastable interphase induced pre-strain compensation enables …
Metastable interphase induced pre-strain compensation enables efficient and stable perovskite solar cells Energy & Environmental Science ( IF 32.4) Pub Date : 2024-11-08, DOI: …
Metastable interphase induced pre-strain compensation enables …
High-efficiency metal halide perovskite solar cells (PSCs) include rigid substrates with low thermal-expansion coefficients (TECs), resulting in significant TEC mismatch with the …
Defect Compensation and Lattice Stabilization Enables High …
Halide perovskite solar cells (PSCs) are considered as one of the most promising candidates for the next generation solar cells as their power conversion efficiency …