Physical Review Materials, Год журнала: 2024, Номер 8(9)
Опубликована: Сен. 16, 2024
Язык: Английский
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 16, 2025
Abstract Defect density on the perovskite film surface significantly exceeds that found in bulk, primarily due to presence of dangling bonds and excessive strain. Herein, a synergistic engineering is reported aimed at reducing defects films. This method involves subjecting thermally‐annealed films controlled cooling condition involving an ambient environment with regulated humidity, as opposed nitrogen environment, followed by phenethylammonium iodide (PEAI) passivation. The treated moisture (MC) exhibit enhanced radiative recombination, prolonged charge carrier lifetime, improved hole transport extraction when contact layer (HTL), alongside significant reduction Notably, passivation effect PEAI MC‐treated amplified compared subjected (NC) treatment, evidenced more uniform potential mapping markedly extended lifetime. may arise from higher ratio newly‐formed 2D phase PEA 2 FAPb I 7 PbI 4 film. Consequently, MC‐based solar cell (PSC) achieves champion power conversion efficiency (PCE) 25.28%, surpassing NC‐treated device, which exhibits PCE only 24.01%.
Язык: Английский
Процитировано
1
Materials Today Energy, Год журнала: 2025, Номер unknown, С. 101820 - 101820
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Results in Chemistry, Год журнала: 2025, Номер unknown, С. 102140 - 102140
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Март 4, 2025
Development of a reproducible technique to grow large area single crystalline perovskite wafers is an open research gap in the field solar cells. A graphite-based localized heating for growing methylammonium lead bromide (CH3NH3PbBr3; MAPBr) thin film (SCTF) on different buffer layers, such as glass/indium doped tin oxide (ITO), glass/ITO/poly(triaryl amine) (PTAA), and glancing angle deposition (GLAD) coated glass/ITO/TiO2 substrates reported, their charge transport properties are discussed. It observed that can confine supersaturation precursor mainly center substrate, leading restricted number nucleations within specific substrate. Here, 2-3 seed crystals obtained initially allowed larger size up 65 mm2. The X-ray diffraction (XRD) analysis indicated SCTF actual crystal not heterogeneous group small merged together with crystallinity index (CI) 92.60 ± 0.11% which was comparable bulk (97.74 0.47%). atomic force microscopy (AFM) image depicted smooth surface (R = 4.37 0.01 nm), wave-like pattern attributed substrate morphology, implying topography plays crucial role obtaining planar SCTF. XRD, UV-visible, photoluminescence (PL), Raman, FTIR spectra analyses revealed phase pure free residual impurities. injection characteristics SCTFs grown layers were investigated using PL emission (PLE) decay analyses. decrease PLE intensity PTAA TiO2 implied exciton quenching behavior, indicating photogenerated carriers into transfer (CTLs). fast component from τ1 4.77 0.18 ns glass 3.32 0.07 3.15 0.33 ascribed interfacial recombination charges accumulated at CTL/perovskite interface. These results propose be employed optoelectronic photovoltaic device applications.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 7, 2025
Abstract The application of vast kinds materials in functional layers flexible perovskite solar cells (FPSCs) renders a rapid improvement power conversion efficiency (PCE), yet such characteristic is still outcompeted by their nonflexible counterpart. To date, the key challenges FPSCs come from suboptimal film crystallinity and built‐up stress due to mismatch lattice constant between layers, making whole device prone mechanical vulnerability degradation optoelectronic performance. Among reported solutions for above issues, polymeric are particularly used as additives interfacial FPSCs, which promote crystallization perovskite, defect passivation, self‐healing, hence improving device's PCE long‐term stability. In this review progress polymers gone through, aiming present comprehensive overview how utilize further push envelope efficiency, its underlying mechanisms. Furthermore, study delved into contributions encapsulation large‐area manufacturing processes, critical facilitate lab‐to‐fab process FPSCs. Finally, forward‐looking insights that set requirements future material design selection presented, with hope constructing efficient, stable, environmentally friendly
Язык: Английский
Процитировано
0
Chemical Society Reviews, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
This review systematically analyses the recombination pathways in PSCs, unveils cutting-edge suppression strategies, and underscores potential of ML optimizing device performance expediting commercial integration.
Язык: Английский
Процитировано
0
Chemical Physics, Год журнала: 2025, Номер unknown, С. 112711 - 112711
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
ACS Materials Letters, Год журнала: 2025, Номер unknown, С. 1603 - 1611
Опубликована: Март 26, 2025
Язык: Английский
Процитировано
0
Royal Society Open Science, Год журнала: 2025, Номер 12(4)
Опубликована: Апрель 1, 2025
Halide double perovskites have various benefits over lead-based due to their suitable optical absorption efficiency, higher stability, tunable bandgap, large carrier mobility, easy availability and low cost. The structural, electrical, mechanical characteristics of the lead-free halide Cs2NaTlBr6-x Cl x (x = 0, 1, 2, 3, 4, 5 6) are investigated by utilizing first-principles density functional theory (DFT). structural properties were computed at equilibrium, revealing that crystals undergo phase transitions as doping concentration varies. However, crystal stability was confirmed through evaluation tolerance factor. Heyd-Scuseria-Ernzerhof (HSE06) is used correct bandgap underestimation generalized gradient approximation with Perdew-Burke-Ernzerhof (GGA-PBE). band edge profile electron states confirm direct-bandgap semiconducting nature compounds. increases approximately linearly incorporation, sharply tuned from 0.80 1.75 eV (GGA-PBE) 1.78 2.98 (HSE06), making them highly for photovoltaic optoelectronic applications. effective mass ranges 0.283 0.449 m0, mobility 83.913 305.485 cm2 V-1 s-1, respectively, suggesting excellent charge transport characteristics, essential high-performance solar cells photodetectors. considered NaTl-based strong in visible UV spectrum, enhanced conductivity content increases. Binding energy analysis confirms lattice values decreasing -3.193 (Br-rich) -3.559 (Cl-rich), indicating improved thermodynamic robustness Mechanical shows ductile behaviour perovskites, supported Poisson's ratio Pugh's modulus. rising bulk modulus Debye temperature incorporation enhance rigidity thermal stability. These insights advance anion-engineered design stable, high-efficiency, next-generation
Язык: Английский
Процитировано
0
Journal of Optics, Год журнала: 2025, Номер unknown
Опубликована: Май 15, 2025
Язык: Английский
Процитировано
0