Results 21 to 30 of about 4,035,475 (305)

Enhancing hole transports and generating hole traps by doping organic hole transport layers with p-type molecules of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane [PDF]

open access: yes, 2008
We investigated the relationship between the hole-transport and hole-trap characteristics of N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine (α-NPD) doped with p-type molecules of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F_4 ...
Matsushima, Toshinori, Adachi, Chihaya
core   +1 more source

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

Structure of a Bathtub Vortex : Importance of the Bottom Boundary Layer [PDF]

open access: yes, 2010
A bathtub vortex in a cylindrical tank rotating at a constant angular velocity [omega] is studied by meansof a laboratory experiment, a numerical experiment and a boundary layer theory.
Noguchi, Takashi   +4 more
core   +1 more source

Homogeneous doping of entire perovskite solar cellsviaalkali cation diffusion from the hole transport layer

open access: yes, 2021
Organic-inorganic hybrid perovskite materials have attracted enormous attention owing to their extraordinary progress in both power conversion efficiency and stability.
Chen, M   +7 more
core   +1 more source

Perovskite Light-Emitting Devices with Doped Hole Transporting Layer [PDF]

open access: yesMolecules, 2021
Perovskite quantum dots (PQDs) have drawn global attention in recent years and have been used in a range of semiconductor devices, especially for light-emitting diodes (LEDs). However, because of the nature of low-conductive ligands of PQDs and surface and bulk defects in the devices, charge injection and transport should be carefully managed in order ...
Zhiwei Peng, Yuhan Gao, Guohua Xie
openaire   +3 more sources

Vacuum-Free Quantum Dots Planar Hybrid Solar Cells: Improving Charge Transport Using Reduced Graphene Oxide and PEO as the Buffer Layer

open access: yesApplied Sciences, 2022
In this work, reduced graphene oxide (rGO) was synthesized using a modified Hummer method and its morphological and structural properties were investigated using transmission electron microscopy (TEM), high-resolution TEM (HR-TEM) and X-ray diffraction ...
Minsu Kim   +7 more
doaj   +1 more source

Dibenzo-Tetraphenyl Diindeno as Hole Transport Layer for Perovskite Solar Cells Fabrication [PDF]

open access: yes, 2020
Semi-transparent perovskite solar cells have the competitive edge of being employed for building integrated photovoltaics due to their aesthetic benefits as light harvesting windows / facades.
Samrana, Kazim   +6 more
core   +1 more source

Hole Transport Layer optimization for Methylammonium Lead Iodide Photovoltaic Cell [PDF]

open access: yes, 2020
The innovation of hybrid halide perovskite solar cells has gained a noticeable advancement in the domain of photovoltaics. Despite of this upsurge in performance and its low cost, the materials that constitute a solar cell have different stability issues
Khakurel, Nischal
core   +3 more sources

Harnessing the potential of lead-free BiFeO3-based perovskite solar cell architectures: a gateway to next-generation energy challenges [PDF]

open access: yesRSC Advances
An inorganic, lead-free n–i–p structured perovskite solar cell based on BiFeO3 (BFO) is employed and optimized using 3D COMSOL Multiphysics simulations to address the urgent shift from fossil fuels to renewable energy driven by environmental challenges ...
Kashif Ali   +8 more
doaj   +1 more source

Graphene oxide-molybdenum oxide composite with improved hole transport in bulk heterojunction solar cells

open access: yesAIP Advances, 2019
Solution processed hole transport layer based on graphene oxide (GO) and molybdenum oxide (MoO3) composite in bulk heterojunction organic solar cell (OSC) devices offer low cost, improved performance compared to conventional organic solar cells. Here, we
Md. Aatif   +9 more
doaj   +1 more source

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