scholarly journals Solution Processed Polymer-ABX4 Perovskite-Like Microcavities

2019 ◽  
Vol 9 (23) ◽  
pp. 5203 ◽  
Author(s):  
Lova ◽  
Cortecchia ◽  
Soci ◽  
Comoretto
Keyword(s):  
Thin Films ◽  
Spectral Range ◽  
Broad Spectrum ◽  
Visible Spectral Range ◽  
Large Area ◽  
Solution Processed ◽  
Broad Emission ◽  
Hybrid Perovskite ◽  
2D Hybrid Perovskite ◽  
Commercial Polymers

Thanks to solution processability and broad emission in the visible spectral range, 2D hybrid perovskite-like materials are interesting for the realization of large area and flexible lighting devices. However, the deposition of these materials requires broad-spectrum solvents that can easily dissolve most of the commercial polymers and make perovskites incompatible with flexible photonics. Here, we demonstrated the integration of broadband-emitting (EDBE)PbCl4 (where EDBE = 2,2-(ethylenedioxy)bis(ethylammonium)) thin films with a solution-processed polymer planar microcavities, employing a sacrificial polymer multilayer. This approach allowed for spectral and angular redistribution of the perovskite-like material, photoluminescence, that can pave the way to all-solution-processed and flexible lightning devices that do not require complex and costly fabrication techniques.

scholarly journals Reshaping Hybrid Perovskites Emission with Flexible Polymer Microcavities

2020 ◽  
Vol 230 ◽  
pp. 00006
Author(s):  
Paola Lova ◽  
Paolo Giusto ◽  
Francesco Di Stasio ◽  
Giovanni Manfredi ◽  
Giuseppe M. Paternò ◽  
...  
Keyword(s):  
Thin Films ◽  
Photonic Crystals ◽  
Low Cost ◽  
Scale Production ◽  
Large Area ◽  
Light Emitting Devices ◽  
Flexible Polymer ◽  
Hybrid Perovskite ◽  
Wide Range ◽  
Solution Processable

Thanks to versatile optoelectronic properties solution processable perovskites have attracted increasing interest as active materials in photovoltaic and light emitting devices. However, the deposition of perovskite thin films necessitates wide range solvents that are incompatible with many other solution-processable media, including polymers that are usually dissolved by the perovskite solvents. In this work, we demonstrate that hybrid perovskite thin films can be coupled with all polymer planar photonic crystals with different approaches to achieve emission intensity enhancement and reshaping using different approaches. The possibility to control and modify the emission spectrum of a solution processable perovskite via a simple spun-cast polymer structure is indeed of great interest in optoelectronic applications requiring high color purity or emission directionality. Furthermore, thanks to the ease of fabrication and scalability of solution-processed photonic crystals, this approach could enable industrial scale production of low-cost, large area, lightweight and flexible polymer-perovskite lighting devices, which may be tuned without resorting to compositional engineering.

Chemical durability engineering of solution-processed oxide thin films and its application in chemically-robust patterned oxide thin-film transistors

2017 ◽  
Vol 5 (2) ◽  
pp. 339-349 ◽  
Author(s):  
Sung Woon Cho ◽  
Da Eun Kim ◽  
Won Jun Kang ◽  
Bora Kim ◽  
Dea Ho Yoon ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermal Treatment ◽  
Thin Film Transistors ◽  
Oxide Films ◽  
Chemical Durability ◽  
Oxide Thin Film ◽  
Large Area ◽  
Solution Processed ◽  
Circuit Integration

The chemical durability of solution-processed oxide films was engineered via Sn-incorporation and thermal-treatment, which was applied for large-area TFT circuit integration.

Hybrid perovskite solar cells: In situ investigation of solution-processed PbI2 reveals metastable precursors and a pathway to producing porous thin films

2017 ◽  
Vol 32 (10) ◽  
pp. 1899-1907 ◽  
Author(s):  
Dounya Barrit ◽  
Arif D. Sheikh ◽  
Rahim Munir ◽  
Jérémy M. Barbé ◽  
Ruipeng Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Processed ◽  
Porous Thin Films ◽  
Hybrid Perovskite ◽  
In Situ Investigation ◽  
Image Position

Abstract

Solution-Processed Epitaxial Growth of Arbitrary Surface Nanopatterns on Hybrid Perovskite Monocrystalline Thin Films

ACS Nano ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 11029-11039
Author(s):  
Jinshuai Zhang ◽  
Qin Guo ◽  
Xuan Li ◽  
Chao Li ◽  
Kan Wu ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Growth ◽  
Solution Processed ◽  
Hybrid Perovskite

The Optical Spectra of a-Si:H and a-SiC:H Thin Films Measured by the Absolute Photothermal Deflection Spectroscopy (PDS)

2014 ◽  
Vol 213 ◽  
pp. 19-28 ◽  
Author(s):  
Zdenek Remes ◽  
Ravi Vasudevan ◽  
Karol Jarolimek ◽  
Arno H.M. Smets ◽  
Miro Zeman
Keyword(s):  
Thin Films ◽  
Spectral Range ◽  
Near Infrared ◽  
Energy Gap ◽  
Chemical Vapor ◽  
Visible Spectral Range ◽  
Localized States ◽  
Rf Plasma ◽  
Detection Range ◽  
The Absolute

The new absolute PDS setup allows to measure simultaneously the absolute values of the optical transmittance T, reflectance R and absorptance A spectra in the spectral range 280 2000 nm with the typical spectral resolution 10 nm in ultraviolet and visible spectral range and 20 nm in the near infrared region. The PDS setup provides the dynamic detection range in the optical absorptance up to 4 orders of magnitude using non-toxic liquid perfluorohexane Fluorinert FC72. Here we demonstrate the usability of this setup on a series of intrinsic as well as doped a-Si:H and a-SiC:H thin films deposited on glass substrates by radio frequency (RF) plasma enhanced chemical vapor deposition (CVD) from hydrogen, silane and methane under various conditions. The increase of the Tauc gap with increasing carbon concentration in intrinsic a-SiC:H was observed. The defect-induced localized states in the energy gap were observed in doped a-Si:H as well as undoped a-SiC:H below the Urbach absorption edge.

scholarly journals Directing nucleation and growth kinetics in solution-processed hybrid perovskite thin-films

2017 ◽  
Vol 60 (7) ◽  
pp. 617-628 ◽  
Author(s):  
Alexander R. Pascoe ◽  
Qinying Gu ◽  
Mathias U. Rothmann ◽  
Wei Li ◽  
Yupeng Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Growth Kinetics ◽  
Nucleation And Growth ◽  
Solution Processed ◽  
Hybrid Perovskite
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