Results 41 to 50 of about 10,251 (258)

Room‐Temperature Synthesis of Strongly Confined Lead Halide Perovskite Quantum Dots

Advanced Functional Materials, EarlyView.
CsPbX3${\rm CsPbX}_3$ lead halide perovskite quantum dots (QDs) are synthesized in a room‐temperature, five‐minute synthesis, yielding size‐controlled QDs with bright, tunable emission governed by reaction conditions and halide composition. A strongly binding ligand, OD‐PEA, ensures months‐long stability under ambient conditions and facilitates their ...
Anna Abfalterer, Yuzhen J. Zhou, Roshini Jayabalan, Julian Holzinger, Lukas M. Rescher, Rik Hooijer, Aladin Ullrich, Nina A. Henke, Immanuel Plangger, Erkan Aydin, Bert Nickel, Anne K. Schütz, Wolfgang Brütting, Alexander S. Urban   +13 more
wiley   +1 more source

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

Advanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh, Woo Jin Mun, Kamran Dastafkan, Matyas Daboczi, Hongki Kim, Humza Bhatti, Eunyoung Hong, Minzhi Chen, Yongqi Huang, Jin Hyuk Kim, Nicola Gasparini, Jong Hak Kim, Salvador Eslava   +12 more
wiley   +1 more source

Halide Diffusion in Mixed-Halide Perovskites and Heterojunctions

Chemistry of Materials
Migration of halide defects guides ion transport in metal halide perovskites and controls the kinetics of halide mixing and phase separation. We study the diffusion of halide vacancies and interstitials in \ce{CsPb(I_{x}Br_{1-x})_{3}} and \ce{CsPbI_{3}}/\ce{CsPbBr_{3}} heterojunctions by molecular dynamics simulations using neural network potentials ...
Viren Tyagi, Mike Pols, Geert Brocks, Shuxia Tao   +3 more
openaire   +2 more sources

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

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

Reconstructing Quantum Dot Surfaces via Dual‐Functional Ligand Pairing Enables Efficient Shortwave Infrared Optoelectronics

Advanced Functional Materials, EarlyView.
This work presents a ligand‐pairing strategy that reconstructs lead sulfide quantum dot surfaces for efficient short‐wave infrared optoelectronics. A low‐reactivity thiourea precursor combined with hydrobromic acid enables monodisperse and fully passivated quantum dots.
Dongeon Kim, Minjung Yang, Yunjin Lee, Gaeun Cho, Min‐Jae Si, Jaewoo Jeong, Seoryeon Jeong, Sol‐Hee Kim, Taeho Han, Seungin Jee, Byeong‐Chan Kim, Woong Kim, Seungmin Lee, Jun Hong Noh, Han Seul Kim, Yujin Jung, Se‐Woong Baek   +16 more
wiley   +1 more source

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

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