Results 81 to 90 of about 321,664 (276)
Excitonic States in Semiconducting Two-dimensional Perovskites
, 2018 Hybrid organic/inorganic perovskites have emerged as efficient semiconductor materials for applications in photovoltaic solar cells with conversion efficiency above 20 \%.
Molina-Sánchez, Alejandro
core +2 more sources
, 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
Static Disorder in Lead Halide Perovskites
The Journal of Physical Chemistry Letters, 2022 In crystalline and amorphous semiconductors, the temperature-dependent Urbach energy can be determined from the inverse slope of the logarithm of the absorption spectrum and reflects the static and dynamic energetic disorder. Using recent advances in the sensitivity of photocurrent spectroscopy methods, we elucidate the temperature-dependent Urbach ...
Stefan Zeiske +9 more
openaire +7 more sources
Polymer Network Modified Perovskite for High‐Performance Pure Blue Light‐Emitting Diodes
Advanced Functional Materials, EarlyView.A polymer network of poly(4‐vinylphenol) (PVPh) is introduced to improve pure blue perovskite light‐emitting diodes. PVPh effectively passivates defects, enhances film morphology, reduces lattice strain, and suppresses ion migration. These effects lead to record device performance, achieving 9.82% external quantum efficiency and stable blue emission at
Zhongkai Yu +11 more
wiley +1 more source
Recent advancements in batteries and photo-batteries using metal halide perovskites
APL Materials, 2022 Metal halide perovskites have gained significant interest for use in solar cells and light-emitting devices. Recently, this material has also gained significant interest for its potential in energy storage devices, particularly lithium-ion batteries and ...
Neha Tewari +3 more
doaj +1 more source
Halide perovskite photovoltaics
Contemporary Physics, 2022 Halide perovskites are a new class of materials that can be processed at low cost yet exhibit excellent optoelectronic properties – a combination rarely seen in semiconductors. This review highlights their exciting promise for inexpensive and efficient solar photovoltaic technologies.
openaire +2 more sources
Metallic surface doping of metal halide perovskites
Nature Communications, 2021 Intentional doping is the core of semiconductor technologies to tune electrical and optical properties of semiconductors for electronic devices, however, it has shown to be a grand challenge for halide perovskites.
Yuze Lin +10 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Charge transport in 2D tin perovskite FETs is shown to be governed by dielectric interface behavior. Polar polymer dielectrics induce dipolar disorder that localizes carriers, whereas nonpolar polymers suppress trapping and enable superior charge transport, ensuring stable and reliable transistor operation. ABSTRACT Understanding the role of interfaces
Chongyao Li +5 more
wiley +1 more source
, 2017 The local crystal structures of many perovskite-structured materials deviate from the average space group symmetry. We demonstrate, from lattice-dynamics calculations based on quantum chemical force constants, that all the caesium-lead and caesium-tin ...
da Silva, E. Lora +4 more
core +1 more source
Bright triplet excitons in caesium lead halide perovskites [PDF]
Nature, 2017 Nanostructured semiconductors emit light from electronic states known as excitons. For organic materials, Hund’s rules state that the lowest-energy exciton is a poorly emitting triplet state.
M. Becker +15 more
semanticscholar +1 more source