Results 121 to 130 of about 542,204 (257)

Preparation of Ester-Crosslinked PI Membranes with Enhanced Gas Selectivity and Plasticization Resistance

open access: yesMembranes
Fabricating polyimide (PI) membranes with outstanding anti-plasticization ability and gas separation performance remains a challenge. In this study, two novel diamine monomers, DAMBO (methyl 3,5-diamino-4-methylbenzoate) and DAPGBO (3-hydroxypropyl 3,5 ...
Yu Li   +3 more
doaj   +1 more source

Distribution Behavior of B and P during Al-Si Melt Directional Solidification with Open-Ended Crucible

open access: yesHigh Temperature Materials and Processes, 2018
Distribution behavior of B and P during directional solidification of Al-20Si, Al-30Si and Al-40Si alloys has been investigated. Macrostructure of the Al-Si alloy ingots and concentration profile of elements B and P reveal that the elements segregate to ...
Bai Xiaolong   +4 more
doaj   +1 more source

The NASA Lewis Research Center program in space solar cell research and technology [PDF]

open access: yes
Progress in space solar cell research and technology is reported. An 18 percent-AMO-efficient silicon solar cell, reduction in the radiation damage suffered by silicon solar cells in space, and high efficiency wrap-around contact and thin (50 micrometer)
Brandhorst, H. W., Jr.
core   +1 more source

Enhancement of perovskite solar cells by plasmonic nanoparticles

open access: yes, 2016
Synthetic perovskites with photovoltaic properties open a new era in solar photovoltaics. Due to high optical absorption perovskite-based thin-film solar cells are usually considered as fully absorbing solar radiation on condition of ideal blooming ...
Makarov, Sergey   +3 more
core   +1 more source

Homogenous FACsPbI3 Perovskite Solar Cells Enabled by a Seed‐Facilitated Cation Exchange Strategy

open access: yesAdvanced Functional Materials, EarlyView.
A novel seed‐facilitated cation exchange strategy is designed for homogenous FACsPbI3 perovskites using the biomass‐derived solvent γ‐valerolactone. Pre‐deposited 0D Cs4PbI6 seeds induce rapid nucleation and efficient cation exchange, producing a uniform FA–Cs distribution and significantly reducing defect density, enabling high‐performance and stable ...
Meng Ren   +10 more
wiley   +1 more source

MXene-driven nanoscale field-effect junction for advanced 4-terminal perovskite/silicon tandem solar panels

open access: yesNature Communications
The commercialization of perovskite/silicon tandem solar cells hinges on achieving high efficiency and stability while maintaining scalability. This study demonstrates an original approach for inducing the formation of a field effect junction within the ...
Antonio Agresti   +17 more
doaj   +1 more source

Process Research on Polycrystalline Silicon Material (PROPSM) [PDF]

open access: yes
Results of hydrogen-passivated polycrystalline silicon solar cells are summarized. Very small grain or short minority-carrier diffusion length silicon was used.
Culik, J. S., Wrigley, C. Y.
core   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo   +10 more
wiley   +1 more source

Space solar cells: High efficiency and radiation damage [PDF]

open access: yes
The progress and status of efforts to increase the end-of-life efficiency of solar cells for space use is assessed. High efficiency silicon solar cells, silicon solar cell radiation damage, GaAs solar cell performance and radiation damage and 30 percent ...
Bernatowicz, D. T., Brandhorst, H., Jr.
core   +1 more source

Zener-regulated solar array/battery power system [PDF]

open access: yes, 1975
Zener diode limits solar cell voltage used to charge battery.
Eliason, J. T.
core   +1 more source

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