Results 261 to 270 of about 46,804 (307)

Stability Improvement of Perovskite Solar Cells by the Moisture-Resistant PMMA:Spiro-OMeTAD Hole Transport Layer

Polymers, 2022
Perovskite solar cells (PSCs) based on the 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) hole transport layer have exhibited leading device performance.
Weidong Zhu, Dazheng Chen, Chunfu Zhang   +2 more
exaly   +2 more sources

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Hole Transport Layer in Photoelectrochemical Water Splitting

Solar RRL, 2023
Photoelectrochemical water splitting is a promising approach to produce green and renewable hydrogen fuel, alleviating the CO2 emissions, air pollution, and energy crisis. However, the efficiency is limited by the recombination of photogenerated carriers and the losses of holes, resulting in a mismatch between the rates of water oxidation and reduction
Jun Zhang, Tao Li, Jili Zheng, YanQiu Xiao, Xiaotian Li, Jun Song, Chuanxiao Cheng, Wei Yang, Gang Chen   +8 more
openaire   +1 more source

Hole transport layers deposited by magnetron sputtering

III SEVEN INTERNATIONAL MULTIDISCIPLINARY CONGRESS, 2023
Nickel oxide films have been widely studied as hole transport layers in perovskite solar cells because they present good chemical stability and nickel is abundant in nature. In this study, films were deposited using Magnetron Sputtering with a pulsed source.
Felippe de Oliveira Galindo, Lucas Pires Gomes Oliveira, José Roberto Ribeiro Bortoleto, Nilson C. da Cruz, Elidiane C. Rangel, Steven F. Durrant   +5 more
openaire   +1 more source

Enhanced hole transport in C60-doped hole transport layer

Applied Physics Letters, 2006
The carrier mobility of C60-doped hole transport layer was investigated according to the C60 content. The addition of C60 in the 1, 3, 5-tris (N, N-bis-(4, 5-methoxyphenyl)-aminophenyl) benzol (TDAPB) hole transport material resulted in the increase of hole mobility of TDAPB.
Jun Yeob Lee, Jang Hyuk Kwon
openaire   +1 more source

Ambipolar Charge Transport in “Traditional” Organic Hole Transport Layers

Advanced Materials, 2012
Organic semiconductors are often labeled as electron or hole transport materials due to the primary role they perform in devices. However, despite these labels we have shown using time-of-flight that two of the traditional "hole transport materials" TPD and NPB are actually excellent electron transporters the electron transport properties of which are ...
S, Khademi, J Y, Song, P B, Wyatt, T, Kreouzis, W P, Gillin   +4 more
openaire   +2 more sources

Organic light-emitting devices with a hole-blocking layer inserted between the hole-injection layer and hole-transporting layer

Applied Physics Letters, 2006
A hole-blocking layer (HBL), 2,9-dimethyl-4, 7-diphenylphenanthroline (BCP), was incorporated between the hole-transporting layer (HTL) and hole-injection layer for a tris-(8-hydroxyqunoline) aluminum-based organic light-emitting device. Such a structure helps to reduce the hole-leakage to the cathode resulting in improved current efficiency.
Y. Divayana, B. J. Chen, X. W. Sun, K. S. Sarma   +3 more
openaire   +1 more source

Degradation Effects Related to the Hole Transport Layer in Organic Solar Cells

Advanced Functional Materials, 2011
The influence of the hole transport layer on device stability in polymer:fullerene bulk-heterojunction solar cells is reported. Three different hole transport layers varying in composition, dispersion solvent, electrical conductivity, and work function ...
J C Nolasco, Josep Pallares, Lluís F Marsal   +2 more
exaly   +2 more sources

Effect of Hole Injection Layer/Hole Transport Layer Polymer and Device Structure on the Properties of White OLED

Journal of Nanoscience and Nanotechnology, 2008
Copolymers containing carbazole and aromatic amine unit were synthesized by using Pd-catalyzed polycondensation reaction. The polymers were characterized in terms of their molecular weight and thermal stability and their UV and PL properties in solution and film state.
Cho, Ho Young, Park, Eun Jung, Kim, Jin-hoo, Park, Lee Soon   +3 more
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Enhanced hole injection and transport in molybdenum-dioxide-doped organic hole-transporting layers

Journal of Applied Physics, 2008
We have found that molybdenum dioxide (MoO2) is an excellent dopant for enhancing electrical conductivities in organic hole-transporting layers. We fabricated hole-only devices with an alpha-sexithiophene (α-6T) layer doped with MoO2 at various concentrations to investigate how doping MoO2 into the α-6T layers influences the hole-injection and hole ...
Toshinori Matsushima, Chihaya Adachi
openaire   +1 more source

Atomic layer deposition of NiO hole-transporting layers for polymer solar cells

Nanotechnology, 2015
NiO is an attractive hole-transporting material for polymer solar cells (PSCs) owing to its excellent stability and electrical/optical properties. This study demonstrates, for the first time, fabrication of uniform, defect-free, and conformal NiO ultra-thin films for use as hole-transporting layers (HTLs) in PSCs by atomic layer deposition (ALD ...
Che-Chen, Hsu, Heng-Wei, Su, Cheng-Hung, Hou, Jing-Jong, Shyue, Feng-Yu, Tsai   +4 more
openaire   +2 more sources