One‐Stone‐For‐Three‐Birds Strategy Using a Fullerene Modifier for Efficient and Stable Inverted Perovskite Solar Cells DOI

Xiaofen Jiang,

Lingbo Jia,

Shan‐Tao Zhang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(51)

Published: Aug. 16, 2024

Abstract The electron extraction from perovskite/C 60 interface plays a crucial role in influencing the photovoltaic performance of inverted perovskite solar cells (PSCs). Here, we develop one‐stone‐for‐three‐birds strategy via employing novel fullerene derivative bearing triple methyl acrylate groups (denoted as C ‐TMA) multifunctional interfacial layer to optimize at interface. It is found that ‐TMA not only passivates surface defects coordination interactions between C=O and Pb 2+ cations but also bridge transfer . Moreover, it effectively induces secondary grain growth film through strong bonding effect, this phenomenon has never been observed prior art reports on related studies. combination above three upgrades enables improved quality with increased size enhanced crystallinity. With these advantages, treated PSC devices exhibit much higher power conversion efficiency (PCE) 24.89 % than control (23.66 %). Besides, benefits thermal stability devices, retaining over 90 its initial after aging 85 °C for 1200 h, primarily due reinforced quality.

Language: Английский

Reducing nonradiative recombination for highly efficient inverted perovskite solar cells via a synergistic bimolecular interface DOI Creative Commons

Shaobing Xiong,

Fuyu Tian,

Feng Wang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: July 4, 2024

Reducing interface nonradiative recombination is important for realizing highly efficient perovskite solar cells. In this work, we develop a synergistic bimolecular interlayer (SBI) strategy via 4-methoxyphenylphosphonic acid (MPA) and 2-phenylethylammonium iodide (PEAI) to functionalize the interface. MPA induces an in-situ chemical reaction at surface forming strong P-O-Pb covalent bonds that diminish defect density upshift Fermi level. PEAI further creates additional negative dipole so more n-type constructed, which enhances electron extraction top With cooperative treatment, greatly minimize through both enhanced passivation improved energetics. The resulting p-i-n device achieves stabilized power conversion efficiency of 25.53% one smallest induced V

Language: Английский

Citations

54
An MBene Modulating the Buried SnO2/Perovskite Interface in Perovskite Solar Cells DOI
Yuning Zhang, Bo Yu, Yapeng Sun

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(27)

Published: April 18, 2024

The interface of perovskite solar cells (PSCs) plays an important role in transferring and collecting charges. Interface defects are factors affecting the efficiency stability PSCs. Here, buried between SnO

Language: Английский

Citations

46
Bisphosphonate‐Anchored Self‐Assembled Molecules with Larger Dipole Moments for Efficient Inverted Perovskite Solar Cells with Excellent Stability DOI
Jie Wu, Pengyu Yan, Daobin Yang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(28)

Published: May 20, 2024

Abstract In the fabrication of inverted perovskite solar cells (PSCs), wettability, adsorbability, and compactness self‐assembled monolayers (SAMs) on conductive substrates have critical impacts quality films defects at buried perovskite‐substrate interface, which control efficiency stability devices. Herein, three bisphosphonate‐anchored indolocarbazole (IDCz)‐derived SAMs, IDCz‐1, IDCz‐2, IDCz‐3, are designed synthesized by modulating position two nitrogen atoms IDCz unit to improve molecular dipole moments strengthen π–π interactions. Regulating work functions (WF) FTO electrodes through energy levels, band bends upwards with a small offset for ITO/IDCz‐3/perovskite, thereby promoting hole extraction blocking electrons. As result, PSC employing IDCz‐3 as hole‐collecting layer exhibits champion PCE 25.15%, is record multipodal SAMs‐based PSCs. Moreover, unencapsulated device can be stored least 1800 h little degradation in performance.

Language: Английский

Citations

46
Multi‐Point Collaborative Passivation of Surface Defects for Efficient and Stable Perovskite Solar Cells DOI Open Access
Xiang Qiao, Rui Zhu,

Dong Yan

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 30, 2024

Abstract The inherent defects (lead iodide inversion and iodine vacancy) in perovskites cause non‐radiative recombination there is also ion migration, decreasing the efficiency stability of perovskite devices. Eliminating these critical for achieving high‐efficiency solar cells. Herein, an organic molecule with multiple active sites (4,7‐bromo‐5,6‐fluoro‐2,1,3‐phenylpropyl thiadiazole, M4) introduced to modify upper interface perovskites. When M4 interacts surface, bromine (Br) site lead (Pb) at surface repair atomic vacancy defects. fluorine (F) Pb correct octahedral crystal lattice distortions eliminate I Additionally, sulfur–iodine (S–I) interactions reduce I–I dimerization It calculated that energy level aligns band gap, promoting charge transfer. As a result, devices achieve 25.1%, stabilized power output (SPO) 25.0%, voltage 1.19 V, fill factor 85.2%. device retains 95% its initial after 2000 h ageing nitrogen atmosphere. Thus, multi‐point cooperative passivation provides effective method improve

Language: Английский

Citations

14
Bottom‐Up Defect Modification Through Oily‐Allicin Modified Buried Interface Achieving Highly Efficient and Stable Perovskite Solar Cells DOI

Xinmeng Zhuang,

Donglei Zhou,

Yanrun Jia

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

The buried interface properties of the perovskite solar cells (PSCs) play a crucial role in power conversion efficiency (PCE) and operational stability. metal-oxide/perovskite heterogeneous interfaces are highly defective cause serious ion migration. However, unexposed bottom simultaneous stabilization grain boundaries receive less attention effective solutions. To tackle this problem, solid-liquid strategy is employed by introducing oily-additive allicin at to passivate shallow (V

Language: Английский

Citations

12
Internal Encapsulation Strategy Using a Polymer Enables Efficient, Stable, and Lead‐Safe Inverted Perovskite Solar Cells DOI

Hongye Dong,

Guibin Shen,

Haohui Fang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(37)

Published: April 16, 2024

Abstract Significant progress is made in perovskite solar cells (PSCs) with high power conversion efficiency (PCE). However, the potential issue of lead leakage creates a critical challenge to its commercialization. Therefore, convenient internal encapsulation strategy proposed by introducing polyvinyl butyral (PVB) polymer at perovskite/electron transport layer interface. This enhances performance PSCs and effectively suppresses leakage. The introduced PVB plays crucial role mitigating ion migration, optimizing energy levels, preventing moisture penetration. Thus, modifications generally perform better, an improved PCE 22.47% reduced hysteresis. Furthermore, these modified devices exhibit enhanced stability under light soaking thermal stress, innovative approach not only but also addresses challenges associated leakage, paving way for more sustainable commercially viable cell technologies.

Language: Английский

Citations

8
Nature of defects and their passivation engineering for advancements in perovskite solar cells DOI

Katta Venkata Seshaiah,

Joo Hyun Kim

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152370 - 152370

Published: May 18, 2024

Language: Английский

Citations

8
Enhancing electron transport for efficiency -recorded HTL-free inverted perovskite solar cells by molecular complementary passivation DOI

Qingbin Cai,

Qin Tan,

Jiacheng He

et al.

Joule, Journal Year: 2025, Volume and Issue: unknown, P. 101880 - 101880

Published: March 1, 2025

Language: Английский

Citations

1
Piperazine‐Assisted Construction of 2D/3D Wide‐Bandgap Perovskite for Realizing High‐Efficiency Perovskite/Organic Tandem Solar Cells DOI

Ziyue Wang,

S. Kang,

Xia Zhou

et al.

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(16), P. 1819 - 1827

Published: March 30, 2024

Comprehensive Summary Monolithic perovskite/organic tandem solar cells (TSCs) have gained significant attention due to their easy device integration and the potential surpass Shockley–Queisser limit of single‐junction cells. However, surfaces wide‐bandgap perovskite films are densely populated with defects, leading severe non‐radiative recombination energy loss. As a consequence, power conversion efficiency (PCE) TSCs lags behind that other TSC counterparts. To address these issues, we designed functional ammonium salt, 4‐(2‐hydroxyethyl)piperazin‐1‐ium iodide (PZOI), comprising piperazine terminated hydroxyl group, which was applied for post‐treating surface. Our findings reveal PZOI reacts consumes residual PbX 2 (X: I or Br) form 2D component, thereby eliminating Pb 0 while group in can also passivate uncoordinated 2+ . Consequently, shallow/deep‐level defect densities 2D/3D film were significantly reduced, an enhanced PCE 18.18% reduced loss 40 meV. Importantly, corresponding achieved remarkable 24.05% operational stability ( T 90 ~500 h).

Language: Английский

Citations

6
An MBene Modulating the Buried SnO2/Perovskite Interface in Perovskite Solar Cells DOI
Yuning Zhang, Bo Yu, Yapeng Sun

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(27)

Published: April 18, 2024

Abstract The interface of perovskite solar cells (PSCs) plays an important role in transferring and collecting charges. Interface defects are factors affecting the efficiency stability PSCs. Here, buried between SnO 2 layer is bridged by two‐dimensional (2D) MBene, which improves charge transfer. MBene can deposit additional electrons on surface , passivate its facilitate collection. Moreover, dipole moment formed at increases electron transfer ability also regulates growth crystals, quality films, reduces grain boundary defects. As a result, PSCs based FA 0.2 MA 0.8 PbI 3 (FAPbI ) 0.95 (MAPbBr 0.05 get enhanced efficiencies 22.34 % 24.32 with negligible hysteresis. Furthermore, optimized device exhibits better stability. This work opens up application materials PSCs, reveals deeper understanding mechanism behind using 2D as modification layer, shows opportunities for potential material photoelectric devices.

Language: Английский

Citations

5