Results 101 to 110 of about 34,337 (296)

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

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

Fabrication of silicon-on-reflector for Si-based resonant-cavity-enhanced photodetectors

, 2000
A novel silicon-on-reflector substrate for Si-based resonant-cavity-enhanced photodetectors has been fabricated by using Si-based sol-gel and smart-cut techniques.
Yang QQ, Li C, Li C Chinese Acad Sci Inst Semicond State Key Lab Integrated Optoelect POB 912 Beijing 100083 Peoples R China., Ou HY, Wang QM   +4 more
core  

Understanding Interfacial Photoswitching Mechanisms in Atomically‐Thin TMD‐Spiropyran Hybrids

Advanced Materials Technologies, EarlyView.
Photochromic molecules can effectively modulate the optoelectronic properties of atomically thin transition metal dichalcogenide semiconductors. Spiropyran that switches its chemical configuration upon alternating UV and visible irradiation enables light‐programmable optoelectronic devices.
Sewon Park, Jaehoon Ji, Michael Brophy, John Audi, Jean Rouillon, Carlos Benitez‐Martin, Joakim Andréasson, Jeong Ho You, Jong Hyun Choi   +8 more
wiley   +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

Long period grating for 3-5 mu m quantum-well infra-red photodetectors

, 1996
By considering all possible high order diffracted waves, the authors calculate the coupling efficiency of long period gratings for 3-5 mu m quantum-well infra-red photodetectors (QWIPs) on the basis of the modal expansion model (MEM).
Pan D CHINESE ACAD SCIINST SEMICONDBEIJING 100083PEOPLES R CHINA., Kong M, Pan D   +2 more
core  

Low-cost fully transparent ultraviolet photodetectors based on electrospun ZnO-SnO2 heterojunction nanofibers

, 2013
Electrospun ZnO-SnO2 heterojunction nanofibers are demonstrated to be promising candidates for easily assembled fully transparent high-performance ...
Zhai, T., Zhang, C., Tian, W., Li, S. L., Cai, X., Wang, X., Bando, Y., Liu, D., Tsukagoshi, K., Liu, F., Golberg, D.   +10 more
core   +1 more source

Large Faraday Rotation in Liquid Crystals With Embedded Paramagnetic Ions (Cu2+, VO2+) at Room Temperature

Advanced Optical Materials, EarlyView.
Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek, Adam Krówczyński, Mateusz Król, Nevill Gonzalez Szwacki, Paulina Rybak, Damian Pociecha, Paweł W. Majewski, Barbara Piętka, Jacek Szczytko   +8 more
wiley   +1 more source

Diamond ultra-violet photoreceivers

Технологія та конструювання в електронній апаратурі, 2007
Ultraviolet photodetectors based on natural type IIa diamond with different nitrogen concentrations have been fabricated and investigated. The feasibility of implementing both photoresistive and photodiode operation principles in diamond UV ...
A. A. Altukhov, A. Yu. Mityagin, E. V. Gorokhov, V. S. Feshchenko, N. Kh. Talipov   +4 more
doaj  

Processing and characterization of nanowire arrays for photodetectors

, 2014
We present a fabrication scheme of contacting arrays of vertically standing nanowires (NW) for LEDs (Duan et al. Nature 409:66–69, 2001), photodetectors (Wang et al. Science (NY) 293:1455–1457, 2001) or solar cell applications (Wallentin et al.
Heurlin, Magnus,, Jain, Vishal, Pettersson, Håkan,, L. Samuelson, Heurlin, M., Wallentin, Jesper,, Samuelson, Lars,, J. Wallentin, Borgström, Magnus T.,, Wallentin, J., Nowzari, A., Asoli, Damir,, Capasso, F., M. T. Borgström, Capasso, Federico,, Borgström, M. T., Pettersson, H., A. Nowzari, Nowzari, Ali,, F. Capasso, Vishal Jain, M. Heurlin, D. Asoli, Jain, Vishal,, Samuelson, L., Asoli, D., H. Pettersson   +26 more
core   +1 more source