Results 81 to 90 of about 3,584 (216)

Lattice Coherency‐Driven (111)‐Oriented Wide Bandgap Perovskite Films

Advanced Energy Materials, EarlyView.
Methylammonium lead chloride (MAPbCl3)‐derived seed templates regulate wide‐bandgap perovskite crystallization through coupled thermodynamic and kinetic effects. Lattice‐coherent templating lowers the energy cost for (111) epilayer growth, while growth retardation controls crystallization kinetics, ultimately producing highly crystalline face‐up (111 ...
Yu‐Na Lee, Hyo Jung Kim, Ji‐Sang Park, Wolfgang Tress, Yasemin Saygili, Hui‐Seon Kim   +5 more
wiley   +1 more source

Swelling-activated cation-selective channels in A6 epithelia are permeable to large cations [PDF]

, 1998
Effects of basolateral monovalent cation replacements (Na+ by Li+, K+, Cs+, methylammonium, and guanidinium) on permeability to86Rb of volume-sensitive cation channels (VSCC) in the basolateral membrane and on regulatory volume decrease (RVD), elicited ...
Jinqing Li, Jeannine Simaels, Willy Van Driessche, Patrick De Smet, Danny Jans   +4 more
core   +1 more source

Multiscale Perspectives on Perovskite Instability: From Atomistic Deformation to Device Degradation in Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee, Donghyeon Lee, Seoyoon Lee, Jin‐Wook Lee, Mansoo Choi, Min‐cheol Kim, Namyoung Ahn   +6 more
wiley   +1 more source

Mechanism of Pressure-Induced Phase Transitions, Amorphization, and Absorption-Edge Shift in Photovoltaic Methylammonium Lead Iodide [PDF]

, 2016
Our single-crystal X-ray diffraction study of methylammonium lead triiodide, MAPbI3, provides the first comprehensive structural information on the tetragonal phase II in the pressure range to 0.35 GPa, on the cubic phase IV stable between 0.35 and 2.5 ...
Andrzej Katrusiak (1233849), Marek Szafrański (1826527)   +1 more
core   +1 more source

Regulation of Crystallization Kinetics via Zwitterionic Additive for Efficient and Operationally Stable Formamidinium Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
This study introduces a zwitterionic additive, Cl‐PPS, to regulate crystallization kinetics and passivate defects in formamidinium‐based perovskite solar cells. Cl‐PPS promotes direct α‐phase formation, minimizes necessary MACl loading, and induces highly crystalline, vertically oriented grains.
Shuai Li, Bohong Chang, Jianqiu Gong, Xianglang Sun, Francesco Vanin, Chunlei Zhang, Zexin Yu, Ning Wang, Dong Zhang, Baoze Liu, Liangchen Qian, Xinhui Lu, Haipeng Lu, Mingjie Li, Danpeng Gao, Bo Li, Zonglong Zhu   +16 more
wiley   +1 more source

Sputtering Mechanism of an Unsintered Organic–Inorganic Sputtering Target for Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
An unsintered MAPbI3 sputtering target fabricated via a mechanochemical route enables large‐area vacuum deposition of perovskite absorber layers, while revealing an ion–photon coupled decomposition mechanism that governs target erosion and film composition under RF plasma exposure.
Doha Lim, Rira Kang, Yewon Lee, Hyun Hwi Lee, Mee‐Yi Ryu, Muntae Hwang, So‐Yeon Ju, Fang Luo, Byunghong Lee, Han‐Ki Kim   +9 more
wiley   +1 more source

Verification and Mitigation of Proton‐Induced Non‐Ionizing Damage in Perovskite Solar Cells for Space Applications

Advanced Energy Materials, EarlyView.
Metal‐halide perovskite solar cells offer high‐efficiency power for orbital missions but suffer from permanent proton‐induced degradation. This work identifies non‐ionizing energy loss (NIEL) as the primary driver of irreversible failure, inducing atomic displacements and microcracks in the high‐fluence regime. Through energy‐tuned mapping and scalable
Jangwon Byun, Sung‐Pil Yoon, Beomjun Park, Sung‐Jun Park, Dong Hoe Kim, Sunwoo Kim, Jin‐Wook Lee, Sangwook Lee, Hyun Suk Jung, Nam‐Gyu Park, Man‐Jong Lee   +10 more
wiley   +1 more source

Tuning the thermal conductivity of methylammonium lead halide by the molecular substructure [PDF]

, 2016
By using state-of-the-art atomistic methods we provide an accurate estimate of thermal conductivity of methylammonium lead halide as a function of sample size and temperature, in agreement with experimental works. We show that the thermal conductivity of
Saba, Maria Ilenia, FILIPPETTI, ALESSIO, Mattoni, Alessandro, MELIS, CLAUDIO, COLOMBO, LUCIANO, CADDEO, CLAUDIA   +5 more
core   +1 more source

2D Halide Perovskite Phase Formation Dynamics and Their Regulation by Co‐Additives for Efficient Solar Cells

Advanced Materials Interfaces
The incorporation of large organic ammonium ions renders the crystallization dynamics and layer formation process of halide perovskites complex, difficult to control, and leads to problems of suppressed charge transport with the formation of tiny‐sized ...
Min Liu, Daming Zheng, Tao Zhu, Karol Vegso, Peter Siffalovic, Thierry Pauporté   +5 more
doaj   +1 more source

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals

Advanced Materials Interfaces
Lattice distortion in perovskites (AMX3) significantly impacts their stability and power conversion efficiency, often in a trade‐off. The inherent lattice distortion is predominantly influenced by the size, orientation, and composition of the A‐site ...
Abdulazeez M. Ogunleye, Hakseon Lee, Adeshina Mohammad Awwal, GunWoo Kim, Hyunmin Kim, Yoonmi Choi, Jonghoo Park   +6 more
doaj   +1 more source