Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158870 - 158870
Published: Dec. 1, 2024
Language: Английский
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 30, 2024
Through a bimolecular energy-level-tunable design, an ET-HTL reaches optimal energy level alignment with three different perovskite compositions, providing balanced interface defect passivation, charge extraction, and transition loss suppression.
Language: Английский
Citations
18
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6974 - 7016
Published: Jan. 1, 2024
This review overviews the challenges at buried interface of PSCs, defect passivation capabilities SAMs, and its effectiveness compared to other passivating agents.
Language: Английский
Citations
14
Small, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
Abstract [4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl]phosphonic acid (Me‐4PACz) consistently exhibits inhomogeneous distribution on the substrate, which makes it a challenge for growth of high‐quality perovskite film, resulting in undesired interfacial losses at buried interfaces. Moreover, flexible alkyl chains Me‐4PACz are not conducive to intermolecular interactions and hinder charge flow. Here, novel molecule with 4‐Methoxy‐N‐(4‐methoxyphenyl)‐N‐phenylaniline (TPA) carbazole backbone, named CzTPA is designed, constituted Co‐SAM Me‐4PACz. The two carboxyls end will act as an anchoring group cover inadequate coverage NiO x . methoxy TPA can passivation uncoordinated Pb 2+ interface by interaction Pb─O. Additionally, be restrained self‐aggregation interacting CzTPA. cooperation realizes more homogeneous , efficient transport, minimize defects. Accordingly, modification significantly enhance efficiency 1.54‐eV PSCs from 23.53% 25.66% sustain 91.4% its original after 1992 h under continuous illumination 65 °C. More importantly, 1.68 eV wide‐bandgap PSC achieved PCE 22.75% good photostability.
Language: Английский
Citations
2
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 16, 2025
Abstract Self‐assembled monolayers (SAMs), particularly those molecules composed of carbazole and phosphonic acid, are widely employed as effective hole‐selective layer (HSL) in inverted perovskite solar cells (PSCs). However, the insufficient chemical bond formation with metal oxides (ITO) self‐aggregation solvents acid SAM led to non‐uniform HSL, which turn affect power conversion efficiency (PCE) stability PSCs. Herein, a series benzoic materials (BAs), including p‐fluorobenzoic (FBA) p‐methylbenzoic (MBA), used post‐assembly effectively fill voids between [4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl]phosphonic (Me‐4PACz) form denser facilitates passivation buried interface. In addition, post‐assembled BAs different dipole moments can adjust work function Me‐4PACz facilitating transport extraction charge carriers. Consequently, PSCs based on Me‐4PACz/FBA HSL realize champion PCE 25.58%. Moreover, unencapsulated devices maintain 82% 94% after 800 h outdoor storage (RH≈60%) 2000 glove box, respectively. This technique enhances both device, blazing simple pathway for further development
Language: Английский
Citations
1
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 7, 2025
The power conversion efficiency (PCE) of inverted lead-halide perovskite solar cells (PSCs) via vapor deposition has undergone significant enhancement through the incorporation a self-assembled monolayer (SAM) serving as hole transport layer. To achieve high-performance PSCs, SAM layer needs to maintain dense and high-coverage configuration during fabrication process. Our investigation revealed that solid-vapor reaction, conditions high temperature low pressure can potentially lead migration molecules, particularly those adsorbed on surface but have not yet formed covalent bonds. In this study, overcome limitation, we developed an impregnation process for mixed molecules with (4-(7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (4PADCB) glycine hydrochloride (GH), which reduces agglomeration enhances their strong anchoring ability substrate, thereby maintaining extremely coverage rate even in high-temperature low-pressure environment reactions. Consequently, champion efficiencies 22.15% (0.16 cm2) 19.18% (5 cm × 5 module) are achieved, is highest record PSCs based deposition. Moreover, advantages reusability, good uniformity, cost, very broad commercial prospects.
Language: Английский
Citations
1
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 30, 2024
Abstract Self‐assembled monolayers (SAM) as hole transport layers have been widely used in high‐efficiency inverted perovskite solar cells (PSCs) exceeded 26 %. However, the poor coverage and non‐uniform distribution on substrate of SAM further restrict improvement device performance. Herein, we utilize mixed strategy via MeO‐2PACz along with perfluorotripropylamine (FC‐3283) to improve coverage, aiming accelerate carrier transport, promote growth, regulate surface energy levels suppress nonradiative recombination. The champion mixed‐SAM achieves an efficiency 25.70 % (certified 25.6 %) long‐term stability (maintained initial 90 after 1000 h 180 under ISOS‐L‐1 ISOS‐L‐2).
Language: Английский
Citations
7
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159788 - 159788
Published: Jan. 1, 2025
Language: Английский
Citations
1
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: April 2, 2025
The inhomogeneity of hole-selective self-assembled molecular layers (SAMLs) often arises from the insufficient bonding between anchors and metal oxide, particularly on textured silicon surfaces when fabricating monolithic perovskite/silicon tandem solar cells (P/S-TSCs) hydrophobic carbazole complicates fabrication high-quality perovskite films. To address this, we developed a novel bidentate-anchored superwetting aromatic SAM based an upside-down core as layer (HSL), denoted ((9H-carbazole-3,6-diyl)bis(4,1-phenylene))bis(phosphonic acid) (2PhPA-CzH). bisphosphonate-anchored exhibited enhanced adsorption capabilities efficient hole extraction/transport, reversely substituted ring contributed friendly super wetting underlayer that enabled films with minimized energetic mismatches, which 2PhPA-CzH played pivotal role in dual interfacial energy regulation. Through these advancements, optimized wide-bandgap (1.68 eV) PSCs demonstrated improved PCE 22.83% excellent stability T90 exceeding 1000 h under damp-heat conditions (ISOS-D-3, 85% RH, 85 °C), representing one best performances for SAMs HSL-based PSCs. Notably, 2PhPA-CzH-functionalized recombination extended to submicron-pyramid texture SHJ fabricate P/S-TSCs, achieving impressive efficiency 32.19% at active area 1 cm2 (certified 31.54%) while maintaining photostability. This work offers guidance designing multidentate-anchored realize record P/S-TSCs.
Language: Английский
Citations
1
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 6, 2024
Abstract The performance of perovskite solar cells (PSCs) is often constrained by significant open‐circuit voltage ( V OC ) losses attributed to non‐radiative recombination processes induced detrimental trap states. Surface treatments using passivating ligands typically involve single active binding sites on perovskite, posing challenges for effective passivation. Here, an aromatic donor‐acceptor (D‐A) configured phthalocyanine treatment proposed aim at dual‐site passivation uncoordinated lead ions and mitigation shallow deep‐level defects the surface. resulting benign p‐type surface facilitates a more favorable energy level alignment reduces energetic mismatches perovskite/Spiro‐OMeTAD interface. Pc‐BTBC, with its D‐A configuration, demonstrated compatibility various compositions. Optimized PSCs achieves power conversion efficiency (PCE) 25.15% deficit 0.379 V. Furthermore, encapsulated devices exhibited enhanced stability under damp‐heat conditions (ISOS‐D‐2, 50% RH, 65°C) T 92 1000 h maintained maximum point tracking continuous light in ambient air 65°C (ISOS‐L‐2). Notably, fabricated wide‐bandgap semitransparent (ST‐PSCs) achieved PCE 20.29%, while four‐terminal perovskite/silicon tandem (4T‐P/STSCs) 29.38%. This study provides insights into minimizing represents progress toward commercializing photovoltaics.
Language: Английский
Citations
5
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(36), P. 48607 - 48618
Published: Aug. 26, 2024
We report a facile interfacial assembly strategy for the preparation of flexible polyphenol-based films antibacterial and antiultraviolet applications. The free-standing can be instantaneously formed via spraying tannic acid (TA) at surface carboxymethyl chitosan (CMCS) solutions. Compared with traditional casting-evaporation procedure on solid substrates, liquid method construction is rapid facile, which prevents interface separation from substrates. thickness mechanical properties are well controlled by changing incubation time. low-field nuclear magnetic resonance was used to analyze water distributions inside distinguish cross-linked structure CMCS–TA different thicknesses, revealing dynamics film formation process. Importantly, exhibit outstanding properties, promising in applications wound dressings. This study provides new avenue multifunctionality low-cost fabrication
Language: Английский
Citations
4