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We screen a large chemical space of perovskite alloys for systems with the right properties to accommodate a morphotropic phase boundary (MPB) in their composition-temperature phase diagram, a crucial feature for high piezoelectric…

Materials Science · Physics 2015-06-17 Rickard Armiento , Boris Kozinsky , Geoffroy Hautier , Marco Fornari , Gerbrand Ceder

Understanding and controlling charge carrier recombination dynamics is essential for enhancing the performance of metal halide perovskite optoelectronic devices. In this study, we present a machine learning-assisted intensity-modulated…

Chemical Physics · Physics 2025-04-30 Qi Shi , Tönu Pullerits

Layered "mosaic" metal-halide perovskite materials display a wide-variety of microstructures that span the order-disorder spectrum and can be tuned via the composition of their constituent B-site octahedral species. Such materials are…

Materials Science · Physics 2025-11-25 Murray Skolnick , Salvatore Torquato

Halide perovskites have been extensively studied as materials of interest for optoelectronic applications. There is a major emphasis on ways to tailor the stability, defect behavior, electronic band structure, and optical absorption in…

Materials Science · Physics 2023-09-29 Jiaqi Yang , Arun Mannodi-Kanakkithodi

Chalcogenide material-based integrated photonic devices have garnered widespread attention due to their unique wideband transparency. Despite their recognized CMOS compatibility, the fabrication of these devices relies predominantly on…

Optics · Physics 2024-08-12 Zhen Hu , Yuru Li , Yan Li , Shunyu Yao , Hongfei Chen , Tao Zhang , Zhaohuan Ao , Zhaohui Li

Inorganic-organic perovskites semiconductors are becoming increasingly interesting due to their remarkable optical properties, such as a high photoluminescence quantum yield and the possibility to show optical gain in a broad range of…

Optics · Physics 2021-03-30 Michele Bellingeri , Francesco Scotognella

Optimizing selective contact layers in photovoltaics is necessary to yield high performing stable devices. However, this has been difficult for perovskites due to their complex interfacial defects that affect carrier concentrations in the…

Perovskite thin films hold great promise for optoelectronic applications, such as solar cells and light emitting diodes. A challenge is that defects are unavoidably formed in the material. Thorough understanding of the defect formation and…

Chemical Physics · Physics 2023-11-07 Qi Shi , Tönu Pullerits

Light-emitting diodes based on perovskite nanocrystals (PNCs-LEDs) have gained great interest for next-generation display and lighting technologies prized for their color purity, high brightness and luminous efficiency approaching the…

Metal halide perovskites (MHPs) have attracted significant attention owing to their simple manufacturing process and unique optoelectronic properties. Their reversible electrical or optical properties changes in response to oxidizing or…

Titanium based-perovskites have got surprising attraction due to their environmentfriendly photocatalysts behavior. The Rietveld refinement of X-ray diffraction (XRD) pattern authenticates the orthorhombic Pnma structure of Pr2MgTiO6 (PMT).…

Materials Science · Physics 2023-07-04 Moumin Rudra , T. K. Bhowmik , H. S. Tripathi , R. A. Kumar , R. Sutradhar , T. P. Sinha

Photonic integrated circuits are emerging as a key technology for compact and energy-efficient optical information processing. Yet, their practical implementation remains limited by the intrinsically weak optical nonlinearities of…

Halide perovskites are a versatile class of semiconductors employed for high performance emerging optoelectronic devices, including flexoelectric systems, yet the influence of their ionic nature on their mechanical behaviour is still to be…

Lead halide perovskites (LHPs) are promising materials for opto-electronics and photovoltaics, thanks to favorable characteristics and low manufacturing costs enabled by solution processing. In light of this, it is crucial to assess the…

Materials Science · Physics 2021-10-01 Giovanni Procida , Richard Schier , Ana M. Valencia , Caterina Cocchi

Perovskite photovoltaics (PV) have achieved rapid development in the past decade in terms of power conversion efficiency of small-area lab-scale devices; however, successful commercialization still requires further development of low-cost,…

Machine Learning · Computer Science 2022-02-08 Zhe Liu , Nicholas Rolston , Austin C. Flick , Thomas W. Colburn , Zekun Ren , Reinhold H. Dauskardt , Tonio Buonassisi

Epitaxial III-V semiconductor heterostructures are key components in modern microelectronics, electro-optics and optoelectronics. With superior semiconducting properties, halide perovskite materials are rising as promising candidates for…

Materials Science · Physics 2016-08-23 Yiping Wang , Zhizhong Chen , Felix Deschler , Xin Sun , Toh-Ming Lu , Esther Wertz , Jia-Mian Hu , Jian Shi

Halide perovskite-based photodiodes are promising for efficient detection across a broad spectral range. Perovskite absorber thin-films have a microcrystalline morphology, characterized by a high density of surface states and defects at…

Lithium niobate is one of the most sought-after materials for nanophotonic devices, including frequency converters, modulators, and quantum light sources. Integration of lithium niobate into optical devices, however, is hampered by…

Optics · Physics 2025-11-18 Rana Faryad Ali , Guillermo Aguilar

Metal halide perovskites are materials that show unique characteristics for photovoltaics and light emission. Amplified spontaneous emission and stimulated emission has been shown with these materials, together with electroluminescence in…

Optics · Physics 2022-07-28 Francesco Scotognella

Exciton-polaritons are unique quasiparticles with hybrid properties of an exciton and a photon, opening ways to realize ultrafast strongly nonlinear systems and inversion-free lasers based on Bose-Einstein polariton condensation. However,…