Results 91 to 100 of about 36,207 (216)

One‐step Centimeter‐Scale Growth of Sub‐100‐nm Perovskite Single‐Crystal Arrays in Ambient Air for Color Painting

Advanced Science
Halide perovskite single crystals have demonstrated enormous potential for next‐generation integrated optoelectronic devices. However, there is a lack of a facile method to realize the controllable growth of large‐scale, high‐quality, and high‐resolution
Guannan Zhang, Zhao Sun, Zhuofei Gan, Chuwei Liang, Liyang Chen, Hongbo Mo, Yuanzhi Jiang, Mingjian Yuan, Aleksandra B. Djurišić, Ji Tae Kim, Wen‐Di Li   +10 more
doaj   +1 more source

Band-width control in a perovskite-type 3d^1 correlated metal Ca_1-xSr_xVO_3. II. Optical spectroscopy investigation

, 1998
Optical conductivity spectra of single crystals of Ca_1-xSr_xVO_3 have been studied to elucidate how the electronic behavior depends on the strength of the electron correlation without changing the nominal number of electrons per vanadium atom.
A. Fukushima, A. Georges, A. Georges, B. C. Webb, B. L. Chamberland, D. A. Crandles, D. A. Crandles, D. A. Crandles, G. A. Thomas, G. A. Thomas, H. Makino, I. H. Inoue, I. H. Inoue, I. H. Inoue, I. H. Inoue, I. H. Inoue, I. Hase, J. W. Allen, J. Zaanen, K. Morikawa, M. Cardona, M. Couzi, M. J. Rozenberg, M. J. Rozenberg, M. J. Rozenberg, M. Kasuya, N. F. Mott, N. Shirakawa, S. Bouarab, S. Onari, T. Arima, T. Katsufuji, W. F. Brinkman, X. Y. Zhang, Y. Aiura, Y. Fujishima, Y. Okimoto, Y. Taguchi   +37 more
core   +1 more source

Critical Role of Polymer Gate Dielectrics on the Charge Carrier Transport in Perovskite Field‐Effect Transistors

Advanced Functional Materials, EarlyView.
Charge transport in 2D tin perovskite FETs is shown to be governed by dielectric interface behavior. Polar polymer dielectrics induce dipolar disorder that localizes carriers, whereas nonpolar polymers suppress trapping and enable superior charge transport, ensuring stable and reliable transistor operation. ABSTRACT Understanding the role of interfaces
Chongyao Li, Zhitian Ling, Pawel Czulkin, Paul W. M. Blom, Wojciech Pisula, Tomasz Marszalek   +5 more
wiley   +1 more source

Atomistic Mechanism of the Nucleation of Methylammonium Lead Iodide Perovskite from Solution

, 2019
In the ongoing intense quest to increase the photoconversion efficiencies of lead halide perovskites, it has become evident that optimizing the morphology of the material is essential to achieve high peformance.
Ahlawat, Paramvir, Graetzel, Michael, Parrinello, Michele, Piaggi, Pablo, Rothlisberger, Ursula   +4 more
core  

Multiple high-pressure phase transitions in BiFeO3

, 2011
We investigate the high-pressure phase transitions in BiFeO3 by single crystal and powder x-ray diffraction, as well as single crystal Raman spectroscopy. Six phase transitions are reported in the 0-60 GPa range.
Bouvier, Pierre, Chen, Grace S., Dkhil, Brahim, Garbarino, Gaston, Guennou, Mael, Haumont, Raphaël, Kreisel, Jens   +6 more
core   +3 more sources

Giant Intrinsic Chirality Amplification of Aqueous Lead Halide Perovskite Nanocrystals via H‐Bond Driven Self‐Assembly Superstructures

Advanced Functional Materials, EarlyView.
Water‐assisted monoclinic CsPbBr3 transformation strategy is applied for synthesizing aqueous CsPbBr3/CsPb2Br5 nanocrystals with superior water‐repellent and excellent optical property. Low temperature enhanced hydrogen bonding network self‐assembled CsPbBr3/CsPb2Br5 nanocrystals into asymmetric superstructures, which exhibit notable circularly ...
Mei Huang, Pengfei Liu, Zhihong Zhang, Ruijing Fu, Kar Wei Ng, Qingguang Zeng, Bo Wang, Shuangpeng Wang   +7 more
wiley   +1 more source

Deformation splittings in the spectra of LaAlO3: Ho3+, Pr3+, Tm3+ single crystals

EPJ Web of Conferences, 2017
The work is devoted to a high-resolution spectroscopy study of the perovskite-type single crystals of LaAlO3 doped with non-Kramers rare-earth ions of praseodymium, holmium and thulium.
Boldyrev K.N., Dereń P., Popova M.N.
doaj   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

Advanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin, Seo Hyun Nam, Jeehong Park, Dong Gyu Lee, Jeong Bin Cho, Tae Jung Kim, Yeonjin Yi, Joon Ik Jang   +7 more
wiley   +1 more source

Band-width control in a perovskite-type 3d^1 correlated metal Ca_{1-x}Sr_xVO_3. I. Evolution of the electronic properties and effective mass

, 1998
Single crystals of the perovskite-type $3d^{1}$ metallic alloy system Ca$_{1-x}$Sr$_x$VO$_3$ were synthesized in order to investigate metallic properties near the Mott transition.
A. Fujimori, A. Fujimori, A. Fukushima, A. Georges, A. Kampf, A. Yoshimori, B. Bucher, B. R. Watts, C. W. Greeff, D. A. Crandles, D. A. Crandles, D. A. MacLean, D. B. McWhan, D. H. Damon, E. Hashimoto, F. Iga, F. J. Ohkawa, F. Lichtenberg, G. Czyzek, H. Kontani, H. Makino, H. Makino, H. R. Glyde, H. Takagi, H. Takayama, I. H. Inoue, I. H. Inoue, I. H. Inoue, I. H. Inoue, J. A. Wilson, J. B. Torrance, J. C. Phillips, J. H. Van Vleck, J. J. Deisz, J. L. García-Muñoz, J. P. Pouget, J. Zaanen, J.-S. Zhou, K. Kadowaki, K. Morikawa, K. Takegahara, K. Wilson, M. Gurvitch, M. Ishikawa, M. Ishikawa, M. J. Rozenberg, M. Langer, M. Marezio, N. E. Hussey, N. F. Mott, N. G. Ptitsina, N. Shirakawa, O. Goto, P. C. Canfield, P. J. Cote, P. L. Tayler, P. Lombardo, P. Nozières, R. D. Shannon, R. E. Peierls, S. A. Carter, S. A. Carter, S. Hüfner, S. Koshino, S. Koshino, S. Ogawa, T. Arima, T. Hirano, T. Katsufuji, W. F. Brinkman, X. Granados, X. Obradors, Y. Okimoto, Y. Sekine, Y. Tokura, Y. Tokura, Yu. Kagan   +76 more
core   +1 more source

Cross‐Layer Molecular Design for Coherent Interface Passivation in Rigid and Flexible Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A cross‐layer passivation strategy employing molecularly designed thiazol‐5‐ylmethanamine hydrochloride (TMACl) enables coherent defect regulation at the SnO2/perovskite interface, stabilizes both layers, promotes phase‐pure α‐FAPbI3 formation, and enhances charge extraction, delivering PCEs of 26.44% in rigid and 24.72% in flexible perovskite solar ...
Fan Shen, Chenxu Zhao, Lianghui Li, Jia Xu, Jiale Chen, Xunhui Wang, Huijing Liu, Pengchen Zou, Xuewei Liu, Yao Fu, Huifang Han, Kun Lang, Yijun Wang, Yahan Wu, Xu Pan, Zhaofu Fei, Jianxi Yao   +16 more
wiley   +1 more source