Results 71 to 80 of about 151,205 (298)

Metal Halide Perovskites

, 2022
Metal halide perovskites are semiconductors that hold great potential for a variety of different optoelectronic applications. By changing the ions that make up the perovskite lattice, the properties of these materials can be adjusted to fit specific applications, such as solar cells or light-emitting diodes.
Jin Zhong Zhang, Zhiguo Xia, Qi Pang
openaire   +3 more sources

High-performance hysteresis-free perovskite transistors through anion engineering

Nature Communications, 2022
Despite the impressive development of metal halide perovskites in diverse optoelectronics, progress on high-performance transistors employing state-of-the-art perovskite channels has been limited due to ion migration and large organic spacer isolation ...
Huihui Zhu, Ao Liu, Kyu In Shim, Haksoon Jung, Taoyu Zou, Youjin Reo, Hyunjun Kim, Jeong Woo Han, Yimu Chen, Hye Yong Chu, Jun Hyung Lim, Hyung-Jun Kim, Sai Bai, Yong-Young Noh   +13 more
doaj   +1 more source

Octahedral units in halide perovskites

Nature Reviews Chemistry
Metal halide perovskites, with an ABX3 crystal structure, possess excellent photophysical properties for (opto)electronic applications including photovoltaics, light-emitting diodes, photodetectors and transistors. To pave the pathway towards commercial applications, enormous efforts have been made to obtain high-performance perovskite-based devices ...
Wang, Yong, Wang, Yu, Doherty, Tiarnan AS, Stranks, Samuel D, Gao, Feng, Yang, Deren   +5 more
openaire   +3 more sources

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Automated design of hybrid halide perovskite monolayers for band gap engineering

npj Computational Materials
The recent experimental confirmation of perovskite monolayers has sparked ongoing efforts in their prediction and synthesis, showcasing their flexible tunable band gap and potential in advanced functional devices.
Jie Hu, Jianwei Wang, Haiyuan Chen, Xiaobin Niu   +3 more
doaj   +1 more source

Importance of Low Humidity and Selection of Halide Ions of Octylammonium Halide in 2D–3D Perovskite Solar Cells Fabricated in Air

Advanced Materials Interfaces, 2023
Air fabrication of efficient and stable perovskite solar cells with substantial reproducibility is of importance for commercialization of perovskite solar cells. There has been little consensus on which halide is the best selection for thin 2D perovskite
Su Yeon Kwon, Byungsoo Kang, Jong Hyeon Won, Chae Young Lee, Kahee Hwang, Hong Hee Kim, Donghee Park, Won Kook Choi, In Soo Kim, Gee Yeong Kim, Yoon Hee Jang, Phillip Lee, Sang Hyuk Im, Taehee Kim   +13 more
doaj   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

High temperature elastic anisotropy of the perovskite and post-perovskite polymorphs of Al2O3 [PDF]

, 2005
Finite temperature ab initio molecular dynamics calculations were performed to determine the high temperature elastic and seismic properties of the perovskite and post-perovskite phases of pure end-member Al2O3.
Price, GD, Brodholt, JP, Stackhouse, S
core  

Insulating‐Passivating Interfaces for Narrow‐Bandgap Tin‐Lead Perovskites Enable High‐Photovoltage in Single‐ and Double‐Junction Solar Cells

Advanced Functional Materials, EarlyView.
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar, Christ H. L. Weijtens, Laura Bellini, Nick R. M. Schipper, Isabella Taupitz, Maxim Simmonds, Johannes C. Lambooij, Anuja Vijayan, Lana M. Kessels, Simon V. Quiroz Monnens, Guus J. W. Aalbers, Willemijn H. M. Remmerswaal, Stefan C. J. Meskers, Shuaifeng Hu, Junke Wang, Martijn M. Wienk, Henry J. Snaith, Steve Albrecht, René A. J. Janssen   +18 more
wiley   +1 more source

Alkyl Additive‐Mediated Growth of Two‐Dimensional Tin Halide Perovskites for Efficient Charge Transport

Small Structures
Solution‐processed two‐dimensional (2D) tin (Sn2+)‐halide perovskites have achieved great milestones in (opto)electronic devices. The fabrication of high‐quality 2D Sn2+‐halide perovskite films has remained a difficult challenge due to the Lewis acidity ...
Youjin Reo, Taewan Roh, Taesu Choi, Geonwoong Park, Soohwan Yoo, Hyeyeon Jung, Ao Liu, Huihui Zhu, Yong‐Young Noh   +8 more
doaj   +1 more source