Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
All-perovskite tandem solar cells have shown great promise in breaking the Shockley-Queisser limit of single-junction solar cells. However, the efficiency improvement of all-perovskite tandem solar cells is largely hindered by the surface defects induced non-radiative recombination loss in Sn-Pb mixed narrow bandgap perovskite films. Here, we report a surface reconstruction strategy utilizing a surface polishing agent, 1,4-butanediamine, together with a surface passivator, ethylenediammonium diiodide, to eliminate Sn-related defects and passivate organic cation and halide vacancy defects on the surface of Sn-Pb mixed perovskite films. Our strategy not only delivers high-quality Sn-Pb mixed perovskite films with a close-to-ideal stoichiometric ratio surface but also minimizes the non-radiative energy loss at the perovskite/electron transport layer interface. As a result, our Sn-Pb mixed perovskite solar cells with bandgaps of 1.32 and 1.25 eV realize power conversion efficiencies of 22.65% and 23.32%, respectively. Additionally, we further obtain a certified power conversion efficiency of 28.49% of two-junction all-perovskite tandem solar cells.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11347601 | PMC |
| http://dx.doi.org/10.1038/s41467-024-51703-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dual-functional phthalamide modulation of aging-resistant PbI for efficient perovskite solar cells.
J Colloid Interface Sci
September 2025
School of Materials Science and Engineering, Taizhou University, Taizhou 318000, China. Electronic address:
The sequential preparation of perovskite solar cells (PSCs) has received widespread concern for its use in large-scale perovskite modules and perovskite/silicon tandem solar cells. However, the instability of the PbI precursor solution and the incomplete reaction of ammonium salts hinder the industrialization of PSCs. Here, by introducing phthalamide (PA) into PbI solution, the carbonyl oxygen of PA molecules undergoes a bidentate coordination reaction with Pb to form an octahedral coordination structure, and the nitrogen atom in the -NH group exhibits weakly acidic properties due to the conjugation effect.
View Article and Find Full Text PDFLife cycle toxicity and reduction potential analysis of perovskite photovoltaic technology.
J Environ Manage
September 2025
Institute of Blue and Green Development, Shandong University, Weihai, 264209, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810016, China. Electronic address:
Perovskite solar cells (PSCs), an emerging photovoltaic technology promising lower cost and higher efficiency, have been developed rapidly. However, the widespread use of lead in current PSCs raises toxicity concerns, prompting interest in lead-free alternatives. Despite this, comprehensive life cycle assessments of toxicity impacts across PSC types remain limited, potentially leading to biased technology choices and environmental harm.
View Article and Find Full Text PDFUnveiling NiO/Perovskite Interfaces: Charge Transport and Device Performance in Perovskite Solar Cells.
ACS Appl Mater Interfaces
September 2025
Advanced Photovoltaics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.
NiO is a p-type semiconductor widely used as a hole transport material in perovskite solar cells (PSCs), yet the impact of fabrication methods on its interfacial properties and the underlying mechanisms remains unclear. This study investigates how the fabrication process─nanoparticle precursor (NP NiO) and sputtering deposition (SP NiO)─and interfacial space charge effects influence charge transport and device performance in NiO/perovskite systems. SP NiO exhibits a higher Ni/Ni ratio and greater conductivity but induces significant hole depletion and band bending at the interface, leading to reduced open-circuit voltage and efficiency.
View Article and Find Full Text PDFBoosting the Efficiency of 1.84 eV Wide-Bandgap Perovskites Photovoltaics Beyond 19% via Yb Engineering.
Adv Mater
September 2025
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen, 518055, China.
Phase segregation remains one of the most critical challenges limiting the performance and long-term operational stability of wide-bandgap perovskite solar cells (PSCs). This issue is especially pronounced in 1.84 eV wide-bandgap (WBG) perovskites, where severe halide phase segregation leads to compositional heterogeneity and accelerated device degradation.
View Article and Find Full Text PDFRecord Open-Circuit Voltage in Perovskite/PERC Tandem Solar Cells via Novel a-Si Interlayer Passivation.
Small Methods
September 2025
Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
Monolithic perovskite/silicon tandem (PST) solar cells are rapidly emerging as next-generation solar cells with significant potential for commercialization. This study presents a proof of concept for a silicon diffused junction-based PST cell, utilizing a passivated emitter rear contact (PERC) cell with a low-temperature (<200 °C) laser-fired contact process to minimize thermal damage. By introducing amorphous silicon to the emitter surface of PERC bottom cell, the open circuit voltage (V) improve from 0.
View Article and Find Full Text PDF