Molecular engineering of contact interfaces for high-performance perovskite solar cells

Nature Reviews Materials, Год журнала: 2022, Номер 8(2), С. 89 - 108

Опубликована: Ноя. 4, 2022

Язык: Английский

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Advances in SnO₂ for Efficient and Stable n–i–p Perovskite Solar Cells

Advanced Materials, Год журнала: 2022, Номер 34(27)

Опубликована: Март 8, 2022

Perovskite solar cells (PSCs) based on the regular n-i-p device architecture have reached above 25% certified efficiency with continuously reported improvements in recent years. A key common factor for these breakthroughs is development of SnO2 as an effective electron transport layer devices. In this article, advances are reviewed, including various deposition approaches and surface treatment strategies, to enhance bulk interface properties highly efficient stable PSCs. addition, general materials chemistry associated along corresponding challenges improvement strategies discussed, focusing defects, intrinsic properties, impact characteristics. Finally, some implementations related scalable processes flexible devices highlighted, perspectives future large-scale perovskite modules also provided.

Язык: Английский

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Pre‐Buried Additive for Cross‐Layer Modification in Flexible Perovskite Solar Cells with Efficiency Exceeding 22%

Advanced Materials, Год журнала: 2022, Номер 34(21)

Опубликована: Апрель 5, 2022

Halide perovskites have shown superior potentials in flexible photovoltaics due to their soft and high power-to-weight nature. However, interfacial residual stress lattice mismatch the large deformation of substrates greatly limited performance perovskite solar cells (F-PSCs). Here, ammonium formate (HCOONH4 ) is used as a pre-buried additive electron transport layer (ETL) realize bottom-up infiltration process for an situ, integral modification ETL, layer, interface. The HCOONH4 treatment leads enhanced extraction relaxed strain micro-strain film, along with reduced defect densities within these layers. As result, top power conversion efficiency 22.37% certified 21.9% on F-PSCs are achieved, representing highest reported so far. This work links critical connection between multilayer mechanics/defect profiles ETL-perovskite structure device performance, thus providing meaningful scientific direction further narrowing gap rigid-substrate counterparts.

Язык: Английский

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Chlorobenzenesulfonic Potassium Salts as the Efficient Multifunctional Passivator for the Buried Interface in Regular Perovskite Solar Cells

Advanced Energy Materials, Год журнала: 2022, Номер 12(20)

Опубликована: Март 28, 2022

Abstract The interfacial properties for the buried junctions of perovskite solar cells (PSCs) play a crucial role further enhancement power conversion efficiency (PCE) and stability devices. Delicate manipulation interface such as defect density, energy alignment, film quality, etc., guarantees efficient extraction transport photogenerated carriers. Herein, chlorobenzenesulfonic potassium salts are presented novel multifunctional agent to modify tin oxide (SnO 2 )/perovskite regular PSCs. increasing number carbon‐chlorine bonds (CCl) in 2,4,5‐trichlorobenzenesulfonic (3Cl‐BSAK) exhibit interaction with uncoordinated Sn, effectively filling oxygen vacancies SnO surface. Importantly, synergistic effects functional group‐rich organic anions ion achieved reduced carrier recombination, hysteresis. A champion PCE 24.27% open‐circuit voltage ( V OC ) up 1.191 modified devices obtained. unencapsulated maintain 80% their initial after aging at 80 °C 800 h atmosphere 95% 100 d. With 3Cl‐BSAK decoration, high semitransparent PSC 12.83% an average visible light transmittance (AVT) over 27% is also

Язык: Английский

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Solution-processed perovskite thin-films: the journey from lab- to large-scale solar cells

Energy & Environmental Science, Год журнала: 2021, Номер 14(11), С. 5690 - 5722

Опубликована: Янв. 1, 2021

This review explores perovskite crystallization in scalable deposition techniques, including blade, slot-die, spray coating, and inkjet printing.

Язык: Английский

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Self-Assembled Monolayers for Interfacial Engineering in Solution-Processed Thin-Film Electronic Devices: Design, Fabrication, and Applications

Chemical Reviews, Год журнала: 2024, Номер 124(5), С. 2138 - 2204

Опубликована: Фев. 29, 2024

Interfacial engineering has long been a vital means of improving thin-film device performance, especially for organic electronics, perovskites, and hybrid devices. It greatly facilitates the fabrication performance solution-processed devices, including field effect transistors (OFETs), solar cells (OSCs), perovskite (PVSCs), light-emitting diodes (OLEDs). However, due to limitation traditional interfacial materials, further progress these devices is hampered particularly in terms stability, flexibility, sensitivity. The deadlock gradually broken through development self-assembled monolayers (SAMs), which possess distinct benefits transparency, diversity, sensitivity, selectivity, surface passivation ability. In this review, we first showed evolution SAMs, elucidating their working mechanisms structure–property relationships by assessing wide range SAM materials reported date. A comprehensive comparison various growth, fabrication, characterization methods was presented help readers interested applying works. Moreover, recent design applications mainstream electronic OFETs, OSCs, PVSCs OLEDs, summarized. Finally, an outlook prospects section summarizes major challenges SAMs used

Язык: Английский

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Pathways toward commercial perovskite/silicon tandem photovoltaics

Science, Год журнала: 2024, Номер 383(6679)

Опубликована: Янв. 11, 2024

Perovskite/silicon tandem solar cells offer a promising route to increase the power conversion efficiency of crystalline silicon (c-Si) beyond theoretical single-junction limitations at an affordable cost. In past decade, progress has been made toward fabrication highly efficient laboratory-scale tandems through range vacuum- and solution-based perovskite processing technologies onto various types c-Si bottom cells. However, become commercial reality, transition from laboratory industrial will require appropriate, scalable input materials manufacturing processes. addition, perovskite/silicon research needs increasingly focus on stability, reliability, throughput cell production characterization, cell-to-module integration, accurate field-performance prediction evaluation. This Review discusses these aspects in view contemporary manufacturing, offers insights into possible pathways photovoltaics, highlights opportunities realize this goal.

Язык: Английский

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Revealing Steric‐Hindrance‐Dependent Buried Interface Defect Passivation Mechanism in Efficient and Stable Perovskite Solar Cells with Mitigated Tensile Stress

Advanced Functional Materials, Год журнала: 2022, Номер 32(36)

Опубликована: Июнь 30, 2022

Abstract Interface engineering is one feasible and effective approach to minimize the interfacial nonradiative recombination stemming from defects, residual stress, energy level mismatch. Herein, a novel steric‐hindrance‐dependent buried interface defect passivation stress release strategy reported, which implemented by adopting series of adamantane derivative molecules functionalized with CO (i.e., 2‐adamantanone (AD), 1‐adamantane carboxylic acid (ADCA), 1‐adamantaneacetic (ADAA)) modify SnO 2 /perovskite interface. All modifiers play role in passivating mitigating strain, enhancing device performance. The steric hindrance chemical interaction between these perovskites as well determined distance bulky ring, gradually decreases AD, ADCA, ADAA. experimental theoretical evidences together confirmed effect strength. strength, effect, thus performance are negatively correlated hindrance. Consequently, ADAA‐modified achieves seductive efficiency up 23.18%. unencapsulated devices ADAA maintain 81% its initial after aging at 60 °C for 1000 h.

Язык: Английский

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A high-performance room temperature benzene gas sensor based on CoTiO3 covered TiO2 nanospheres decorated with Pd nanoparticles

Sensors and Actuators B Chemical, Год журнала: 2021, Номер 350, С. 130830 - 130830

Опубликована: Сен. 27, 2021

Язык: Английский

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Ligand-bridged charge extraction and enhanced quantum efficiency enable efficient n–i–p perovskite/silicon tandem solar cells

Energy & Environmental Science, Год журнала: 2021, Номер 14(8), С. 4377 - 4390

Опубликована: Янв. 1, 2021

27%-efficient perovskite/silicon tandem solar cells are achieved in n–i–p configuration by developing novel electron and hole selective contacts, which combine high broadband transparency with efficient charge extraction.

Язык: Английский

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