Results 11 to 20 of about 205,607 (326)

Narrowband Monolithic Perovskite–Perovskite Tandem Photodetectors [PDF]

open access: yesAdvanced Optical Materials, 2022
AbstractNarrowband photodetectors (PDs) are sought after for many applications requiring selective spectral response. The most common systems combine optical bandpass filters with broadband photodiodes. This work reports a method to obtain a narrowband response in a perovskite PD by the monolithic integration of a perovskite photoconductor and a ...
Lucía Martínez‐Goyeneche   +5 more
openaire   +2 more sources

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr 3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting [PDF]

open access: hybridAdvanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini   +9 more
openalex   +2 more sources

Layered Perovskites Enhanced Perovskite Photodiodes

open access: yesThe Journal of Physical Chemistry Letters, 2021
Recently, two-dimensional layered perovskites have emerged as effective additives for stabilizing conventional three-dimensional metal halide perovskites. With the addition of layered perovskites, the perovskite-based devices also exhibited enhanced optoelectronic properties, such as reduced nonradiative recombination and ionic migration, strengthened ...
Ruiming Li   +6 more
openaire   +3 more sources

Zwitterions in 3D Perovskites: Organosulfide-Halide Perovskites

open access: yesJournal of the American Chemical Society, 2022
Although sulfide perovskites usually require high-temperature syntheses, we demonstrate that organosulfides can be used in the milder syntheses of halide perovskites. The zwitterionic organosulfide, cysteamine (CYS; +NH3(CH2)2S-), serves as both the X- site and A+ site in the ABX3 halide perovskites, yielding the first examples of 3D organosulfide ...
Li, J   +10 more
openaire   +3 more sources

Hybrid Perovskite/Perovskite Heterojunction Solar Cells [PDF]

open access: yesACS Nano, 2016
Recently developed organic-inorganic hybrid perovskite solar cells combine low-cost fabrication and high power conversion efficiency. Advances in perovskite film optimization have led to an outstanding power conversion efficiency of more than 20%. Looking forward, shifting the focus toward new device architectures holds great potential to induce the ...
Hu Y   +7 more
openaire   +3 more sources

Organometallic Perovskite Metasurfaces [PDF]

open access: yesAdvanced Materials, 2017
Organometallic perovskites, solution-processable materials with outstanding optoelectronic properties and high index of refraction, provide a platform for all-dielectric metamaterials operating at visible frequencies. Perovskite metasurfaces with structural coloring tunable across visible frequencies are realized through subwavelength structuring ...
Gholipour B.   +6 more
openaire   +6 more sources

Ionic polarization-induced current-voltage hysteresis in ch3nh3pbx3 perovskite solar cells [PDF]

open access: yes, 2016
CH3NH3PbX3 (MAPbX3) perovskites have attracted considerable attention as absorber materials for solar light harvesting, reaching solar to power conversion efficiencies above 20%.
Franckeviius, Marius   +10 more
core   +5 more sources

Perovskite-perovskite tandem photovoltaics with optimized band gaps [PDF]

open access: yesScience, 2016
Tandem perovskite cells The ready processability of organic-inorganic perovskite materials for solar cells should enable the fabrication of tandem solar cells, in which the top layer is tuned to absorb shorter wavelengths and the lower layer to absorb the remaining longer-wavelength light.
Eperon, Giles E.   +26 more
openaire   +4 more sources

Prospects of Metal‐Free Perovskites for Piezoelectric Applications

open access: yesAdvanced Science, 2022
Metal‐halide perovskites have emerged as versatile materials for various electronic and optoelectronic devices such as diodes, solar cells, photodetectors, and sensors due to their interesting properties of high absorption coefficient in the visible ...
Han‐Song Wu   +4 more
doaj   +1 more source

Recent Progress in Electrochemiluminescence of Halide Perovskites

open access: yesFrontiers in Chemistry, 2021
Halide perovskites are a rapidly developing class of solution-processable semiconductors which, to date, have a huge impact across several scientific communities. The remarkable photophysical attributes of halide perovskites illustrate their considerable
Yue Cao, Jun-Jie Zhu
doaj   +1 more source

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