Results 111 to 120 of about 7,765 (302)

Synthesis and Application of Organic Hole Transporting Materials for Perovskite Solar Cells at Doped-Free Condition [PDF]

open access: yesشیمی کاربردی روز
In recent years, numerous efforts have been made to synthesize new hole-transporting materials for perovskite solar cells with the aim of replacing spiro-OMeTAD. However, to improve the conductivity and mobility of these materials, chemical additives are
Esmaeil Sheibani   +2 more
doaj   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

open access: yesAdvanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv   +20 more
wiley   +1 more source

Efficient white organic light-emitting device based on a thin layer of hole-transporting host with rubrene dopant

open access: yes, 2005
A white organic light-emitting device (WOLED) in which a yellow fluorescent dye, rubrene (5,6,11,12-tetraphenylnaphthacene), is doped into a thin layer of traditional hole-transporting material NPB {4,4′-bis[N-(1-naphthyl)-N- phenylamino]biphenyl} is ...
Niu, Jinghua   +7 more
core   +1 more source

Synthesis and properties of a spirobifluorene-based hole-transporting material containingtert-butyl group

open access: yes上海师范大学学报. 自然科学版, 2016
A spirobifluorene-based compound SPF-BMO was developed as hole transporters for green phosphorescent organic light-emitting diodes(PhOLEDs).The synthesized material showed sufficient HOMO/LUMO bandgap and triplet energy for green emitting bis[2-(2 ...
DING Ning   +4 more
doaj   +1 more source

Unified Analytical Framework for Understanding the Operational Stability of Blue Phosphorescent OLEDs: Quantitative Insights Into Exciton Recycling and Bimolecular Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley   +1 more source

The study of organic solar cell featuring hole transporting layer with rubbing process

open access: yes, 2011
In organic solar cell, the surface characteristic plays an important role in the power conversion efficiency of solar cell device. According to the literatures, the increased roughness can increase the contact area at the interface between PEDOT:PSS and ...
Chen, Yu-Jyun
core  

Light Emitting Devices with Molecularly Doped Polymer Layers. A New Diamine as a Hole Transporting Molecule

open access: yes, 1997
In the present contribution a new hole transporting molecule belonging to the triphenyldiamine family (N,N'-diphenyl-N,N'-bis(4-metylphenyl)- 1, 1'-biphenyl-4,4'- diamine) in a polycarbonate matrix is studied as the hole transport layer in a two layer ...
J. Kalinowski   +7 more
core   +1 more source

Thermally Triggered Interface for Simplified Organic Solar Cells

open access: yesAdvanced Photonics Research
Organic photovoltaic (OPV) cells are commonly produced by successive printing of four layers on top of a transparent conducting electrode, with the active layer sandwiched in between interlayers followed by the top electrode.
Suwapat Kongsabay   +4 more
doaj   +1 more source

Design, synthesis and theoretical simulations of novel spiroindane-based enamines as p-type semiconductors

open access: yesRoyal Society Open Science
The search for novel classes of hole-transporting materials (HTMs) is a very important task in advancing the commercialization of various photovoltaic devices.
Sarune Daskeviciute-Geguziene   +7 more
doaj   +1 more source

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