Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(16), P. 6003 - 6012
Published: Jan. 1, 2024
The trifluoroacetate pseudohalide anion, with dual functionalities, is introduced at the buried interface to promote orderly growth. This results in a power conversion efficiency of 25.60% and long-term stability under light exposure.
Language: Английский
Chemical Science, Journal Year: 2024, Volume and Issue: 15(8), P. 2778 - 2785
Published: Jan. 1, 2024
Self-assembled monolayers (SAMs) have been widely employed as the bottom-contact hole-selective layer (HSL) in inverted perovskite solar cells (PSCs). Besides manipulating electrical properties, molecularly engineering SAM provides an opportunity to modulate buried interface. Here, we successfully introduced Lewis-basic oxygen and sulfur heteroatoms through rational molecular design of asymmetric SAMs obtain two novel multifunctional SAMs, CbzBF CbzBT. Detailed characterization single-crystal structures device interfaces shows that enhanced packing, more effective ITO work function adjustment, interface passivation were achieved. Consequently, champion PSC employing CbzBT showed excellent power conversion efficiency (PCE) 24.0% with a high fill factor 84.41% improved stability. This demonstrates feasibility introducing defect-passivating heterocyclic groups into molecules help passivate interfacial defects PSCs. The insights gained from this strategy will accelerate development new HSLs for efficient
Language: Английский
Citations
51
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(35)
Published: June 27, 2024
Abstract Inverted perovskite solar cells (PSCs) have attracted considerable attention due to their distinct advantages, including minimal hysteresis, cost‐effectiveness, and suitability for tandem applications. Nevertheless, the solution processing low formation energy of perovskites inevitably lead numerous defects formed at both bulk interfaces layer. These can act as non‐radiative recombination centers, significantly impeding carrier transport posing a substantial obstacle stability further enhancing power conversion efficiency (PCE). This review delves into detailed discussion nature origin characterization techniques employed defect identification. Furthermore, it systematically summarizes methods detection approaches passivating interface within film in inverted PSCs. Finally, this offers perspective on employing upscaling passivation engineering modules. It is hoped provides insights PSCs
Language: Английский
Citations
48
Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(4)
Published: Dec. 15, 2023
Abstract Following the 3rd release of “Emerging PV reports” , best achievements in performance emerging photovoltaic (e‐PV) devices diverse e‐PV research subjects are summarized, as reported peer‐reviewed articles academic journals since August 2022. Updated graphs, tables, and analyses provided with several parameters, such power conversion efficiency, open‐circuit voltage, short‐circuit current density, fill factor, light utilization stability test energy yield. These parameters presented a function bandgap average visible transmittance for each technology application, put into perspective using, example, detailed balance efficiency limit. The 4th installment discusses “PV emergence” classification respect to generations” waves” highlights latest device progress multijunction flexible photovoltaics. Additionally, Dale‐Scarpulla's plots efficiency‐effort terms cumulative publication count also introduced.
Language: Английский
Citations
46
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7555 - 7564
Published: March 8, 2024
Constructing low-dimensional/three-dimensional (LD/3D) perovskite solar cells can improve efficiency and stability. However, the design selection of LD capping materials are incredibly scarce for inverted (PSCs) because layers often favor hole extraction impede electron extraction. Here, we develop a facile effective strategy to modify surface by passivating defects modulating electrical properties incorporating morpholine hydriodide (MORI) thiomorpholine (SMORI) on surface. Compared with PI treatment that previously developed, one-dimensional (1D) layer derived from is transformed into two-dimensional (2D) (with MORI or SMORI), achieving dimension regulation. It shown 2D SMORI induces more robust passivation stronger n–N homotype 2D/3D heterojunctions, p–i–n cell an 24.55%, which retains 87.6% its initial after 1500 h operation at maximum power point (MPP). Furthermore, 5 × cm2 mini-modules presented, active-area 22.28%. In addition, quantum well structure in increases moisture resistance, suppresses ion migration, improves PSCs' structural environmental
Language: Английский
Citations
43
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(8)
Published: Jan. 5, 2024
The instability of the buried interface poses a serious challenge for commercializing perovskite photovoltaic technology. Herein, we report polydentate ligand reinforced chelating strategy to strengthen stability by managing interfacial defects and stress. bis(2,2,2-trifluoroethyl) (methoxycarbonylmethyl)phosphonate (BTP) is employed manipulate interface. C=O, P=O two -CF
Language: Английский
Citations
40
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(38)
Published: July 26, 2024
The interface between the perovskite layer and electron transporting is a critical determinate for performance stability of solar cells (PSCs). heterogeneity critically affects carrier dynamics at buried interface. To address this, bridging molecule, (2-aminoethyl)phosphonic acid (AEP), introduced modification SnO
Language: Английский
Citations
40
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(14)
Published: Feb. 10, 2024
Abstract The main obstacles to promoting the commercialization of perovskite solar cells (PSCs) include their record power conversion efficiency (PCE), which still remains below Shockley–Queisser limit, and poor long‐term stability, attributable crystallographic defects in films open‐circuit voltage ( V oc ) loss devices. In this study, potassium (4‐tert‐butoxycarbonylpiperazin‐1‐yl) methyl trifluoroborate (PTFBK) was employed as a multifunctional additive target modulate bulk carrier dynamics PSCs. Apart from simultaneously passivating anionic cationic defects, PTFBK could also optimize energy‐level alignment devices weaken interaction between carriers longitudinal optical phonons, resulting lifetime greater than 3 μs. Furthermore, it inhibited non‐radiative recombination improved crystallization capacity film. Hence, rigid flexible p‐i‐n PSCs yielded champion PCEs 24.99 % 23.48 %, respectively. More importantly, due hydrogen bonding formamidinium fluorine, exhibited remarkable thermal, humidity, operational tracking at maximum point stabilities. reduced Young's modulus residual stress layer provided excellent bending stability for
Language: Английский
Citations
38
Energy Materials and Devices, Journal Year: 2024, Volume and Issue: 2(1), P. 9370018 - 9370018
Published: Feb. 2, 2024
Metal halide perovskite solar cells (PSCs) are one of the most promising photovoltaic devices. Over time, many strategies have been adopted to improve PSC efficiency, and certified efficiency has reached 26.1%. However, only a few research groups fabricated PSCs with an >25%, indicating that achieving this remains uncommon. To develop industry, outstanding talent must be reserved latest technologies. Herein, we summarize recent developments in high-efficiency (>25%) highlight their effective crystal regulation, interface passivation, component layer structural design. Finally, propose perspectives based on current further enhance promote commercialization process PSCs.
Language: Английский
Citations
30
Research, Journal Year: 2024, Volume and Issue: 7
Published: Jan. 1, 2024
Inverted perovskite solar cells based on weakly polarized hole-transporting layers suffer from the problem of polarity mismatch with precursor solution, resulting in a nonideal wetting surface. In addition to bottom-up growth polycrystalline halide perovskite, this will inevitably worse effects residual strain and heterogeneity at buried interface interfacial carrier transport localized compositional deficiency. Here, we propose multifunctional hybrid pre-embedding strategy improve substrate wettability address unfavorable heterogeneities. By exposing interface, it was found that films markedly reduced because presence organic polyelectrolyte imidazolium salt, which not only realized halogen compensation coordination Pb 2+ but also morphology defect recombination were well regulated. Benefitting above advantages, power conversion efficiency targeted inverted devices bandgap 1.62 eV 21.93% outstanding intrinsic stability. addition, coembedding can be extended 1.55 eV, champion device achieved 23.74%. optimized retained 91% their initial (960 h) when exposed an ambient relative humidity 20%, T80 680 h under heating aging 65 °C, exhibiting elevated durability.
Language: Английский
Citations
27
Nature Energy, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 16, 2024
Language: Английский
Citations
27