Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163060 - 163060
Published: April 1, 2025
Language: Английский
Published: Jan. 1, 2025
Language: Английский
Citations
0
Science Advances, Journal Year: 2025, Volume and Issue: 11(11)
Published: March 14, 2025
Lead halide perovskites hold great promise for photovoltaics and optoelectronics, yet ion migration continues to challenge their long-term stability. Here, combining first-principles calculations machine learning molecular dynamics, we unravel the interplay between perovskite octahedral lattice dynamics energy barrier associated with migration. Our results show that B-site substitution, particularly alkaline-earth lanthanide elements, notably strengthens interactions, restrains oscillation, increases iodine-migration barriers, outperforming commonly used A-site X-site substitutions interstitial doping. Moreover, enhanced aligns geometric factor of μτ (tolerance-octahedral product), underlining superior effectiveness co- multiple-element doping in stabilization suppression. Experimental validation exemplary hysteresis-free Eu-Ca–doped single crystals demonstrates remarkable improvements ambient stability transport properties. These findings highlight engineering as an effective microstructural strategy controlling migration, important implications stable lead-reduced devices.
Language: Английский
Citations
0
Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111026 - 111026
Published: April 1, 2025
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 14, 2025
Abstract The nonradiative recombination losses at the buried interface, arising from interfacial defects, unfavorable energy level alignment, and residual strain, are main impediment for perovskite solar cells (PSCs) to achieve superior efficiency stability. To address this issue, a multifunctional dipolar molecular bridge, 1,4‐phenylenebis(1‐cyanoethene‐2,1‐diyl) bisphosphonic acid (CS‐103), is constructed by symmetric dual anchoring strategy, which can simultaneously interact with both sides interface of n‐i‐p PSCs. surface defects SnO 2 synchronously passivated, while alignment also well optimized due high potential large regional dipole moment CS‐103. Meanwhile, crystallization process be optimized, thus resulting in relatively crystallinity, few grain size, smooth surface. Furthermore, CS‐103 as chemically bonded strain effectively released. Accordingly, suppressed greatest extent, champion power conversion (PCE) 24.77%. unencapsulated PSCs maintain 91% initial PCE more than 1000 h according ISOS‐D‐1 protocol, presenting notable long‐term
Language: Английский
Citations
0
Materials Today Energy, Journal Year: 2025, Volume and Issue: 51, P. 101885 - 101885
Published: April 14, 2025
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162670 - 162670
Published: April 1, 2025
Language: Английский
Citations
0
Chemical Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Characterisation of the electronic properties halide perovskites is often a dilemma for researchers. Many data analysis methods most common techniques in semiconductor device physics have small validity window or are generally only applicable to classical doped semiconductors. As alternative approaches prohibitively complicated and require numerical simulations ionic charge carriers, performed qualitatively comparatively. The overarching idea that even if do not apply given sample, trend should still be maintained. However, this last statement may correct certain situations. Hence, present review provides summary canonical, frequently used characterise short explanation pitfalls applying method, as well opportunities arise from using these ways yet current literature.
Language: Английский
Citations
0
ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 14, 2025
Two-dimensional transition metal carbide Ti3C2Tx, with its large surface area, excellent conductivity, and abundant terminations (Tx), has found broad applications in optoelectronic devices. To address issues such as energy level misalignment, low defects at the HTL/perovskite interface inverted perovskite solar cells (p-i-n PSCs), this study proposes an passivation strategy based on MXene to regulate buried of NiOx/MeO-2PACz-based p-i-n PSCs. Experimental results show that when used layer, increases work function (WF) MeO-2PACz, facilitating alignment. The hydroxyl groups (−OH) Ti3C2Tx undergo continuous hybridization reactions P atoms, forming strong Ti–O–P covalent bonds provide effective pathway for hole transport, thereby reducing charge accumulation interface. Additionally, MXene-doped MeO-2PACz was a control group further reveal dual mechanism both underlying Ultimately, compared PSCs undoped HTLs, power conversion efficiency (PCE) increased by 6% HTL doping 10.7% passivation. This expands application HTLs provides use fabrication highly efficient stable
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163060 - 163060
Published: April 1, 2025
Language: Английский
Citations
0