Manipulating the Crystallization and Phase Transition for High‐Performance CsPbI2Br Solar Cells DOI

Shiqi Shan,

Chang Xu, Haotian Wu

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(6)

Published: Dec. 23, 2022

Abstract The inorganic perovskite solar cells (IPSC) are promising in the context of simultaneously delivering high efficiency and good stability. Developing a high‐performance larger band gap IPSC is particularly demand for commercialization due to their suitability match with prevailing silicon tandem devices, while this hindered by poor morphology phase stability films. To address issue, work develops combined method nonstoichiometric composition post‐cation exchange improve CsPbI 2 Br IPSCs, achieves record 17.80%. This finds that excessive PbI regulates film crystallization, thus, high‐quality enlarged grains obtained. Further depositing formamidinium iodide on top induces cation during post‐annealing process, which increases significantly improves device Therefore, provides an avenue toward via ion method.

Language: Английский

Interface Reactive Sputtering of Transparent Electrode for High‐Performance Monolithic and Stacked Perovskite Tandem Solar Cells DOI

Yiman Dong,

Runnan Yu,

Gangfeng Su

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 14, 2024

Sputtered indium tin oxide (ITO) fulfills the requirements of top transparent electrodes (TTEs) in semitransparent perovskite solar cells (PSCs) and stacked tandem (TSCs), as well recombination layers monolithic TSCs. However, high-energy ITO particles will cause damage to devices. Herein, interface reactive sputtering strategy is proposed construct cost-effective TTEs with high transmittance excellent carrier transporting ability. Polyethylenimine (PEI) chosen reactant that can react sputtered nanoparticles, so that, coordination compounds be formed during deposition process, facilitating transport at C

Language: Английский

Citations

16
Recent Advances in CsPbX3 Perovskite Solar Cells: Focus on Crystallization Characteristics and Controlling Strategies DOI

Shaomin Yang,

Yuwei Duan, Zhike Liu

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(33)

Published: Aug. 25, 2022

Abstract All‐inorganic CsPb X 3 ( = I, Br, Cl or their mixtures) perovskites attract enormous attention in recent years due to excellent optoelectronic properties, outstanding thermal/light stability, and wide range of applications electronic devices. Encouragingly, the reported power conversion efficiency perovskite solar cells (PSCs) rockets up from 2.9% 2015 present 21.0%. In order further promote performance PSCs toward Shockley–Queisser limit, it is important optimize quality films by crystallization kinetics modulation defect suppression. this review, first, some fundamental information about all‐inorganic briefly introduced, including mechanism, growth mode, crystal structure, phase stability as well possible defects effects on device performance. Second, exciting progress strategies for high‐quality summarized discussed detail. The advantages different strategies, annealing engineering, solvent precursor composition interface are highlighted. Finally, methods improving inorganic discussed, future development prospects also outlined.

Language: Английский

Citations

58
Surface Reconstruction for Tin-Based Perovskite Solar Cells DOI

Hui Li,

Bohong Chang,

Lian Wang

et al.

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 7(11), P. 3889 - 3899

Published: Oct. 14, 2022

Open-circuit voltage loss and instability from surface Sn(II) oxidation high-density Sn vacancies pose great hurdles for developing high-performance Sn-based perovskite solar cells (PSCs). Turning attention the bulk microstructure to reconstruction is promising push performance enhancement of PSCs. Herein, a surface-modulation strategy based on 6-maleimidohexanehydrazide trifluoroacetate rationally designed reconstruct structure FASnI3 films manage Fermi level passivate defects. The electronic state evolution results in an n-type shift shallow surface, thereby forming extra back-surface field electron extraction. Meanwhile, ion-pairing agent affords passivating cationic anionic defects, nullifying charged-defect-rich surface. In particular, reductive hydrazide group carboxyl groups alleviate superficial Sn(IV) inhibit formation, homogenizing potential prolonging carrier lifetime. Accordingly, devices deliver champion power conversion efficiency (PCE) 13.64% elongated lifespan, with over 75% original PCE after 1000 h illumination (O2 < 50 ppm). This work presents new insight

Language: Английский

Citations

55
In Situ Dual‐Interface Passivation Strategy Enables The Efficiency of Formamidinium Perovskite Solar Cells Over 25% DOI Open Access
Haonan Wang, Yifan Zheng,

Guodong Zhang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(6)

Published: Oct. 28, 2023

Abstract Perovskite solar cells (PSCs) are promising candidates for next‐generation photovoltaics owing to their unparalleled power conversion efficiencies (PCEs). Currently, approaches further improve device tend focus on the passivation of interfacial defects. Although various strategies have been developed mitigate these defects, many involve complex and time‐consuming post‐treatment processes, thereby hindering widespread adoption in commercial applications. In this work, a concise but efficient situ dual‐interface strategy is wherein 1‐butyl‐3‐methylimidazolium methanesulfonate (MS) employed as precursor additive. During perovskite crystallization, MS can either be enriched downward through precipitation with SnO 2 , or aggregated upward lattice extrusion. These self‐assembled species play significant role passivating defect interfaces, reducing nonradiative recombination losses, promoting more charge extraction. As result, PCE >25% (certified 24.84%) achieved substantially improved long‐term storage photothermal stabilities. This provides valuable insights into holds promise industrialization PSCs.

Language: Английский

Citations

41
High Fill Factor CsPbI2Br Perovskite Solar Cells Via Crystallization Management DOI

Min Ju Jeong,

Soo Woong Jeon,

Sung Yong Kim

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(23)

Published: May 1, 2023

Abstract Inorganic CsPbI 2 Br perovskite has a substantial potential for triple‐junction tandem solar cells as top subcell, however it exhibits relative instability in the air compared with organic‐inorganic perovskites well significantly lower efficiency than theoretical limit. To further enhance air‐stability and of Br‐based (PSCs), is vitally crucial to improve crystallinity passivate defects within films that accelerate phase transformation photo‐inactive air. Here, reported crystallization management via incorporating sodium formate (NaFo) solution effectively leads enlarged grain size reduced trap density. The Na + cation HOOC − anion produce synergistic effect engineering by acting pseudo‐halide passivators, respectively. As result, NaFo‐incorporating device shows an improved power conversion (PCE) 17.7% fill factor (FF) 84.5%. best authors' knowledge, this progressive FF value highest among PSCs thus far. In addition, NaFo‐incorporated stability control device, retaining over 95% its initial PCE 1000 hours under 10% humidity at room temperature without any encapsulation.

Language: Английский

Citations

33
Optimization of Perovskite-KSnI3 Solar Cell by Using Different Hole and Electron Transport Layers: A Numerical SCAPS-1D Simulation DOI

Farhana Bari Sumona,

Muhammad Kashif, Eli Danladi

et al.

Energy & Fuels, Journal Year: 2023, Volume and Issue: 37(23), P. 19207 - 19219

Published: Nov. 14, 2023

Perovskite solar cell (PSC) technology is extensively used in commercial sectors, but concerns about the use of lead and degradable components cells are increasing. A PSC, which based on lead-free KSnI3, illustrated through SCAPS-1D simulation. In this work, different hole transport layers (HTLs; spiro-OMeTAD, Cu2O, NiO, CuI) electron (ETLs; TiO2, CdS, WS2, ZnO) were simulated with proposed device configuration highest power conversion efficiency (PCE). By optimizing thickness variation, doping density, defect back contact, we obtained PCE = 20.99%, FF 85.24%, Jsc 17.063924 mA/cm2, Voc 1.4434 V. These values higher than those a previous study KSnI3-based PSC phthalocyanine-based CTLs having 11.91% spiro-OMeTAD-based 9.776%. To achieve final optimization result CuI as HTL, ZnO ETL, KSnI3 absorber layer. The FTO/ZnO/KSnI3/CuI/Au structure provides an efficient reliable solution for realizing remarkable PSCs.

Language: Английский

Citations

31
One‐Step Construction of a Perovskite/TiO2 Heterojunction toward Highly Stable Inverted All‐Layer‐Inorganic CsPbI2Br Perovskite Solar Cells with 17.1% Efficiency DOI Open Access
Xingyu Pu, Qi Cao, Jie Su

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(36)

Published: Aug. 9, 2023

Abstract All‐layer‐inorganic perovskite solar cells (PSCs) are prized for their remarkable thermal stability and low cost. However, “imperfect contact” at the heterojunction hinders charge transport causes photochemical deterioration, restricting photovoltaic performance, operational stability. Herein, an efficient perovskite/TiO 2 is constructed, produced by adding TiO to antisolvent concurrently form a CsPbI Br layer top electron in one step, which significantly improves interfacial contact thus facilitates heterojunction. The resultant inverted all‐layer‐inorganic PSCs exhibit superior efficiency of 17.1%. Moreover, given high‐quality interface defects, encapsulated retain 91% or 92% initial 1000 h under maximum power point tracking damp‐heat conditions (85 °C 85% relative humidity), respectively. Surprisingly, unencapsulated maintain 86% during aging, even 200 h.

Language: Английский

Citations

26
Water-ultrastable perovskite CsPbBr3 nanocrystals for fluorescence-enhanced cellular imaging DOI

Caili He,

Ziqi Meng, Shuxia Ren

et al.

Rare Metals, Journal Year: 2023, Volume and Issue: 42(5), P. 1624 - 1634

Published: Feb. 28, 2023

Language: Английский

Citations

23
Recent advances of carbon nanotubes in perovskite solar cells DOI Creative Commons
Xian‐Gang Hu, Zhenhua Lin, Liming Ding

et al.

SusMat, Journal Year: 2023, Volume and Issue: 3(5), P. 639 - 670

Published: Sept. 18, 2023

Abstract Perovskite solar cells (PSCs) have exhibited tremendous potential in photovoltaic fields owing to their appreciable performance and simple fabrication. Nevertheless, device performances are still required be further improved before commercial applications. As one‐dimensional materials, carbon nanotubes (CNTs) been utilized regulate stability efficiency of PSCs because excellent chemical stability, flexibility, as well tunable optical electrical characteristics. In this review, we comprehensively summarize various functions CNTs PSCs, such transparent electrodes, hole/electron‐transport layers, counter perovskite additives, interlayers. Additionally, applications toward the advancement flexible semitransparent provided. Finally, preview challenges research interests using high‐efficiency stable devices.

Language: Английский

Citations

23
Mechanical strengthening of a perovskite–substrate heterointerface for highly stable solar cells DOI

Xuesong Leng,

Yichu Zheng, Jingjing He

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(12), P. 4295 - 4303

Published: Jan. 1, 2024

We show the mechanical strengthening of buried interface in perovskite solar cells by using a cohesive macromolecular binder. Solar with strengthened delivered T97.5 lifespan over 1600 h under 1-sun illumination at 55 °C.

Language: Английский

Citations

14