Results 131 to 140 of about 26,119 (351)

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

Advanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee, Rafael R. Del Grande, Yeonjoo Lee, Jinkyoung Yoo, Azza Ben‐Akacha, Biwu Ma, Michael T. Pettes, David A. Strubbe   +7 more
wiley   +1 more source

SiO2-coated lead halide perovskites core–shell and their applications: a mini-review

Royal Society Open Science
Research on lead halide perovskites has demonstrated that they are one of the potential materials for optoelectronic and bio-related applications owing to their promising optical and electronic properties.
Cuc Kim Trinh, Zubair Ahmad
doaj   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

Ionic polarization-induced current–voltage hysteresis in CH3NH3PbX3 perovskite solar cells

Nature Communications, 2016
The origin of hysteresis remains an open question in lead-halide perovskite solar cells. Here, Meloni et al. investigate the causes of hysteresis using an experimental and computational approach, finding that the observed hysteresis is due to halide ion ...
Simone Meloni, Thomas Moehl, Wolfgang Tress, Marius Franckevičius, Michael Saliba, Yong Hui Lee, Peng Gao, Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Ursula Rothlisberger, Michael Graetzel   +10 more
doaj   +1 more source

Topological polarons in halide perovskites

Proceedings of the National Academy of Sciences
Halide perovskites emerged as a revolutionary family of high-quality semiconductors for solar energy harvesting and energy-efficient lighting. There is mounting evidence that the exceptional optoelectronic properties of these materials could stem from unconventional electron–phonon couplings, and it has been suggested that the formation of polarons and
Jon Lafuente-Bartolome, Chao Lian, Feliciano Giustino   +2 more
openaire   +3 more sources

Antisolvent controls the shape and size of anisotropic lead halide perovskite nanocrystals

Colloidal lead halide perovskite nanocrystals hold enormous potential for lighting applications due to their outstanding optical properties. Precise control of the nanocrystal dimensions and composition is a prerequisite for establishing practical ...
Benjamin, März, Alexander S., Urban, Bert, Nickel, Knut, Müller-Caspary, Carola, Lampe, Ann-Christin, Dippel, Kilian, Frank, Sylvio, Haas, Tizian, Lorenzen, Olof, Gutowski, Xiao, Sun, Nina A., Henke, Veronika, Mayer   +12 more
core   +1 more source

Controlling Film Formation in Inkjet‐printed MAPbBr3 Through Graphene Incorporation for Enhanced Photodetection

Advanced Materials Technologies, EarlyView.
This work highlights the impact of incorporating graphene nanoflakes into precursor inks of MAPbBr3 for inkjet‐printed optoelectronic device applications. A substantial modification of the crystallization dynamics is reported despite miniscule concentrations.
Kenneth Lobo, Javier Bartolomé, María Vila, Giovanni Vescio, Raúl I. Sánchez‐Alarcón, Junaid Khan, Júlia Marí Guaita, Francisco Palacio Bonet, Juan P. Martínez‐Pastor, Sergi Hernández, Blas Garrido, Carmen Coya, Albert Cirera   +12 more
wiley   +1 more source

Halide Perovskite Precursors Dope PEDOT:PSS

, 2021
International audienceHalide perovskite semiconductors find use in a broad range of optoelectronic applications including photovoltaic solar cells and light‐emitting diodes.
Claire Guyot, Guyot, Claire, Olivier Renault, Jean‐Paul Barnes, Wantz, Guillaume, Tony Maindron, Renault, Olivier, Hirsch, Lionel, Molenda, Zuzanna, Sandrez, Simon, Guillaume Wantz, Maindron, Tony, Barnes, Jean‐paul, Simon Sandrez, Zuzanna Molenda, Lionel Hirsch   +15 more
core   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source

Tuning Halide Perovskite Energy Levels

, 2020
The ability to control the energy levels in semiconductors is compelling for optoelectronic applications. In this study, we managed to tune the work function WF of halide perovskite semiconductors using self assembling monolayers of small molecules to ...
Vivo, P., Canil, Laura, Phung, Nga, Cramer, T., Neher, Dieter, Abate, Antonio, Singh, A., Unold, Thomas, Vivo, Paola, Neher, D., SINGH, Ajay, Cramer, Tobias, Unold, Thomas (Dr.), Abate, A., Wang, Qiong, Ricciarelli, Damiano, Rusu, Marin, Gagliardi, Alessio, Ricciarelli, D., Fraboni, B., Wolff, Christian Michael (Dr.), Phung, N., Liu, Maning, Wang, Q., Liu, M., Rusu, M., Wolff, Christian M., Meggiolaro, D., Wolff, C.M., De Angelis, F., Gagliardi, A., Canil, L., Unold, T., Fraboni, Beatrice, Meggiolaro, Daniele, De Angelis, Filippo, Neher, Dieter (Prof. Dr.), Nga Phung   +37 more
core   +2 more sources