Stabilized hole-selective layer for high-performance inverted p-i-n perovskite solar cells

Science, Год журнала: 2023, Номер 382(6668), С. 284 - 289

Опубликована: Окт. 19, 2023

P-i-n geometry perovskite solar cells (PSCs) offer simplified fabrication, greater amenability to charge extraction layers, and low-temperature processing over n-i-p counterparts. Self-assembled monolayers (SAMs) can enhance the performance of p-i-n PSCs but ultrathin SAMs be thermally unstable. We report a robust hole-selective layer comprised nickel oxide (NiOx) nanoparticle film with surface-anchored (4-(3,11-dimethoxy-7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (MeO-4PADBC) SAM that improve stabilize NiOx/perovskite interface. The energetic alignment favorable contact binding between NiOx/MeO-4PADBC reduced voltage deficit various compositions led strong interface toughening effects under thermal stress. resulting 1.53-electron-volt devices achieved 25.6% certified power conversion efficiency maintained >90% their initial after continuously operating at 65 degrees Celsius for 1200 hours 1-sun illumination.

Язык: Английский

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Highly efficient and stable perovskite solar cells via a multifunctional hole transporting material

Joule, Год журнала: 2024, Номер 8(6), С. 1691 - 1706

Опубликована: Март 15, 2024

Язык: Английский

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Buried interface molecular hybrid for inverted perovskite solar cells

Nature, Год журнала: 2024, Номер 632(8025), С. 536 - 542

Опубликована: Июнь 26, 2024

Язык: Английский

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Self‐Assembled Interlayer Enables High‐Performance Organic Photovoltaics with Power Conversion Efficiency Exceeding 20%

Advanced Materials, Год журнала: 2024, Номер 36(25)

Опубликована: Март 21, 2024

Interfacial layers (ILs) are prerequisites to form the selective charge transport for high-performance organic photovoltaics (OPVs) but mostly result in considerable parasitic absorption loss. Trimming ILs down a mono-molecular level via self-assembled monolayer is an effective strategy mitigate However, such suffers from inferior electrical contact with low surface coverage on rough surfaces and poor producibility. To address these issues, here, interlayer (SAI) developed, which involves thin layer of 2-6 nm full substrate both covalent van der Waals bonds by using molecule 2-(9H-carbazol-9-yl) (2PACz). Via facile spin coating without further rinsing annealing process, it not only optimizes optical properties OPVs, enables world-record efficiency 20.17% (19.79% certified) also simplifies tedious processing procedure. Moreover, SAI especially useful improving absorbing selectivity semi-transparent record light utilization 5.34%. This work provides optimize OPVs solar window applications.

Язык: Английский

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Homogenized NiO _x nanoparticles for improved hole transport in inverted perovskite solar cells

Science, Год журнала: 2023, Номер 382(6677), С. 1399 - 1404

Опубликована: Ноя. 23, 2023

The power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs) is still lagging behind that conventional PSCs, in part because inefficient carrier transport and poor morphology hole layers (HTLs). We optimized self-assembly [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) onto nickel oxide (NiOx) nanoparticles as an HTL through treatment with hydrogen peroxide, which created a more uniform dispersion high conductivity attributed to the formation Ni3+ well surface hydroxyl groups for bonding. A 25.2% certified PCE mask size 0.074 square centimeters was obtained. This device maintained 85.4% initial after 1000 hours stabilized output operation under 1 sun light irradiation at about 50°C 85.1% 500 accelerated aging 85°C. obtained 21.0% minimodule aperture area 14.65 centimeters.

Язык: Английский

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Low-loss contacts on textured substrates for inverted perovskite solar cells

Nature, Год журнала: 2023, Номер 624(7991), С. 289 - 294

Опубликована: Окт. 23, 2023

Язык: Английский

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Reinforcing self-assembly of hole transport molecules for stable inverted perovskite solar cells

Science, Год журнала: 2024, Номер 383(6688), С. 1236 - 1240

Опубликована: Март 14, 2024

Power conversion efficiencies (PCEs) of inverted perovskite solar cells (PSCs) have been improved by the use a self-assembled monolayer (SAM) hole transport layer. Long-term stability PSCs requires keeping SAM compact under layer during operation. We found that strong polar solvents in precursor desorb if it is anchored on substrates hydrogen-bonded, rather than covalently bonded, hydroxyl groups. used atomic-layer deposition to create an indium tin oxide substrate with fully covalent hydroxyl-covered surface for anchoring, as well trimethoxysilane group exhibited tridentate anchoring substrate. The resulting achieved PCEs 24.8 (certified 24.6) and 23.2% aperture areas 0.08 1.01 square centimeters, respectively. devices retained 98.9 98.2% initial PCE after 1000 hours damp-heat test operation maximum power point tracking at 85°C 1200 standard illumination,

Язык: Английский

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Compact Hole‐Selective Self‐Assembled Monolayers Enabled by Disassembling Micelles in Solution for Efficient Perovskite Solar Cells

Advanced Materials, Год журнала: 2023, Номер 35(46)

Опубликована: Июль 24, 2023

Self-assembled monolayers (SAMs) are widely employed as effective hole-selective layers (HSLs) in inverted perovskite solar cells (PSCs). However, most SAM molecules amphiphilic nature and tend to form micelles the commonly used alcoholic processing solvents. This introduces an extra energetic barrier disassemble during binding of on substrate surface, limiting formation a compact SAM. To alleviate this problem for achieving optimal growth, co-solvent strategy carbazole-based solution is developed. effectively increases critical micelle concentration be above enhances reactivity phosphonic acid anchoring group allow densely packed SAMs formed indium tin oxide. Consequently, PSCs derived from using MeO-2PACz, 2PACz, CbzNaph HSLs show universally improved performance, with SAM-derived device champion efficiency 24.98% stability.

Язык: Английский

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Stability of organic solar cells: toward commercial applications

Chemical Society Reviews, Год журнала: 2024, Номер 53(5), С. 2350 - 2387

Опубликована: Янв. 1, 2024

Organic solar cells (OSCs) have attracted a great deal of attention in the field clean energy due to their advantages transparency, flexibility, low cost and light weight. Introducing them market enables seamless integration into buildings windows, while also supporting wearable, portable electronics internet-of-things (IoT) devices. With development photovoltaic materials optimization fabrication technology, power conversion efficiencies (PCEs) OSCs rapidly improved now exceed 20%. However, there is significant lack focus on material stability device lifetime, causing severe hindrance commercial applications. In this review, we carefully review important strategies employed improve over past three years from perspectives design engineering. Furthermore, analyze discuss current progress terms air, light, thermal mechanical stability. Finally, propose future research directions overcome challenges achieving highly stable OSCs. We expect that will contribute solving problem OSCs, eventually paving way for applications near future.

Язык: Английский

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Co‐Self‐Assembled Monolayers Modified NiO_x for Stable Inverted Perovskite Solar Cells

Advanced Materials, Год журнала: 2024, Номер 36(16)

Опубликована: Янв. 11, 2024

Abstract [4‐(3,6‐dimethyl‐9H‐carbazol‐9yl)butyl]phosphonic acid (Me‐4PACz) self‐assembled molecules (SAM) are an effective method to solve the problem of buried interface NiO x in inverted perovskite solar cells (PSCs). However, Me‐4PACz end group (carbazole core) cannot forcefully passivate defects at bottom film. Here, a Co‐SAM strategy is employed modify PSCs. doped with phosphorylcholine chloride (PC) form improve monolayer coverage and reduce leakage current. The phosphate ions (Cl − ) PC can inhibit surface defects. Meantime, quaternary ammonium Cl fill organic cations halogen vacancies film enable passivation. Moreover, promote growth crystals, collaboratively defects, suppress nonradiative recombination, accelerate carrier transmission, relieve residual stress Consequently, modified devices show power conversion efficiencies as high 25.09% well excellent device stability 93% initial efficiency after 1000 h operation under one‐sun illumination. This work demonstrates novel approach for enhancing performance PSCs by modifying on .

Язык: Английский

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