Results 11 to 20 of about 281,496 (245)

Preparation and performance optimization of bromine-based perovskite quantum dot light-emitting diodes

open access: yesShenzhen Daxue xuebao. Ligong ban, 2023
In order to investigate the effect of the thickness of the perovskite quantum dots light-emitting layer on the electro-optical conversion efficiency of perovskite quantum dot light-emitting diodes (PeLEDs), the cesium lead bromide (CsPbBr3) perovskite ...
CHEN Jiamin   +6 more
doaj   +1 more source

Substituted Polyfluorene-Based Hole Transport Layer with Tunable Solubility [PDF]

open access: yesThe Journal of Physical Chemistry C, 2010
We report on the synthesis and electrical characterization of polyfluorene-triarylamine-based hole transport layers (HTLs). The solubility of the HTL can be tuned by adjustment of the chemical structure without loss of the charge transport properties. Double-layer polymer light-emitting diodes are constructed with an HTL that is not soluble in toluene ...
Craciun, N.I.   +2 more
openaire   +3 more sources

Recent Advances in Hole-Transporting Layers for Organic Solar Cells [PDF]

open access: yesNanomaterials, 2022
Global energy demand is increasing; thus, emerging renewable energy sources, such as organic solar cells (OSCs), are fundamental to mitigate the negative effects of fuel consumption. Within OSC’s advancements, the development of efficient and stable interface materials is essential to achieve high performance, long-term stability, low costs, and ...
Cinthya Anrango-Camacho   +3 more
openaire   +3 more sources

High-Hole-Mobility Metal–Organic Framework as Dopant-Free Hole Transport Layer for Perovskite Solar Cells

open access: yesNanoscale Research Letters, 2022
A dopant-free hole transport layer with high mobility and a low-temperature process is desired for optoelectronic devices. Here, we study a metal–organic framework material with high hole mobility and strong hole extraction capability as an ideal hole ...
Ruonan Wang   +10 more
doaj   +1 more source

Polymer light‐emitting diodes with doped hole‐transport layers [PDF]

open access: yesphysica status solidi (a), 2011
AbstractWe demonstrate a solution processed bi‐layer PLED based on poly(p‐phenylene vinylene) derivatives using orthogonal solvents. To lower the voltage drop the hole transport layer (HTL) based on poly[2,5‐bis(2′‐ethylhexyloxy)‐co‐2,5‐bis(butoxy)‐1,4‐phenylenevinylene] (BEH/BB‐PPV (1:3)) is doped with tetracyano‐tetrafluoro‐quinodimethane (F4TCNQ ...
Lu, M.   +6 more
openaire   +2 more sources

High Power-Conversion Efficiency of Lead-Free Perovskite Solar Cells: A Theoretical Investigation

open access: yesMicromachines, 2022
Solar cells based on lead-free perovskite have demonstrated great potential for next-generation renewable energy. The SCAPS-1D simulation software was used in this study to perform novel device modelling of a lead-free perovskite solar cell of the ...
Ahmad Umar   +7 more
doaj   +1 more source

Theoretical Performance Analysis of Inverted P3HT: PCBM Based Bulk Hetero-Junction Organic Solar Cells through Simulation

open access: yesAdvances in Materials Science and Engineering, 2023
In this study, the role of active layer thickness, hole transport layer thickness, and electron mobility on the performance of P3HT: PCBM-based inverted organic solar cells has been investigated.
Murad Jemal Husen   +2 more
doaj   +1 more source

1,3-Diphenylethenylcarbazolyl-Based Monomer for Cross-Linked Hole Transporting Layers [PDF]

open access: yesMolecules, 2015
A new cross-linkable monomer containing 1,3-diphenylethenylcarbazolyl-based hole-transporting moieties and four reactive epoxy groups, was prepared by a multistep synthesis route from 1,3-bis(2,2-diphenylethenyl)-9H-carbazol-2-ol and its application for the in situ formation of cross-linked hole transporting layers was investigated.
Daškevičienė, Marytė   +6 more
openaire   +5 more sources

Optimization of PEDOT:PSS layers for hole transporting layers of organic photodetectors

open access: yesAdvances in Printing and Media Technology, 2022
The study focuses on the optimization of PEDOT:PSS ink for the preparation of a hole transport layer. The ink was developed for the spiral bar coating technique and for subsequent organic photodetector preparation. In this study, the effect of various variables such as secondary dopant, surfactant, PEDOT:PSS complex ratio, and ink composition on ...
Syrový, Tomáš   +7 more
openaire   +1 more source

In-Situ Characterisation of Charge Transport in Organic Light-Emitting Diode by Impedance Spectroscopy

open access: yesElectronic Materials, 2021
The article demonstrates an original, non-destructive technique that could be used to in situ monitor charge transport in organic light-emitting diodes.
Pavel Chulkin
doaj   +1 more source

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