On Abelian codes over $${\mathbb {Z}}_{m}$$ Z m

Tang, Yongsheng; Zhu, Shixin; Wang, Liqi

doi:10.1007/s12190-015-0869-7

Cited by 39 publications

(52 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hole mobility µ of the host–dopant layer is calculated by using space charge‐limited current (SCLC) model:

J = \frac{9 ε_{0} ε_{r} μ V^{2}}{8 L^{3}}

where J is the current density, ε 0 is the vacuum permittivity, ε r is the dielectric constant of the host–dopant organic semiconductor which is set to be 3.5,12,13 V is the applied voltage and L is the layer thickness. We have previously shown that, with an Ohmic contact at electrode/organic interface, SCLC model can be used reliably to determine carrier mobility 14. It is well‐known that the hole mobility in organic semiconductor is electrical field‐dependent, especially at relatively high electrical field 8,9,15–17.…”

Section: Summary Of the Ups Results And Fitted Physical Parameters Inmentioning

confidence: 99%

Charge‐Transport Processes in Host–Dopant Organic Semiconductors

2020

Adv Elect Materials

View full text Add to dashboard Cite

Host–dopant systems are the foundation for designing the light‐emission zones of organic light‐emitting diodes (OLEDs). An efficient OLED design has to consider the detailed charge transport processes in a host–dopant system in order to regulate charges for optimal distribution of excitons. It is reported that two charge transport pathways, Frenkel–Poole type transport via either host sites or dopant sites and charge hopping between host and dopant sites, are at play. The activation energy barrier in the hopping transport is identified as the energy level offset at the host–dopant interface, and is found consistent with the energy offset in the highest occupied molecular orbitals directly measured by ultraviolet photoemission spectroscopy. Dopant concentration and the host–dopant energy offset are identified as the key parameters dictating charge conduction path in the system. Practical equations are derived to calculate carrier mobility as a function of dopant concentration and dopant–host molecular energy offset.

show abstract

“…The hole mobility µ of the host–dopant layer is calculated by using space charge‐limited current (SCLC) model:

J = \frac{9 ε_{0} ε_{r} μ V^{2}}{8 L^{3}}

Section: Summary Of the Ups Results And Fitted Physical Parameters Inmentioning

confidence: 99%

Charge‐Transport Processes in Host–Dopant Organic Semiconductors

2020

Adv Elect Materials

View full text Add to dashboard Cite

show abstract

“…[50][51][52][53] Basically, three general strategies are most widely accepted: winnowing narrow band gap semiconductors with intrinsic visible light-driven photocatalysis; [48] tuning the band structure by introducing external atoms or defects; [47,50] and loading dyes, quantum dots, or noble metals to absorb/enhance the visible light absorption. [54,55] Problems of visible light absorption have been mostly solved. The next and big issue is the efficient utilization of the absorbed visible light.…”

Section: Visible-light-driven Photocatalysismentioning

confidence: 99%

Full‐Spectrum Solar‐Light‐Activated Photocatalysts for Light–Chemical Energy Conversion

Wang

Sang

et al. 2017

Advanced Energy Materials

242

116

View full text Add to dashboard Cite

photocatalysis based on semiconductors represents another route for light energy conversion. This route endows the direct conversion of light energy into oxidation and reduction energy via charge carriers (electrons and holes) generated in the semiconductors. For instance, the photocatalytic degradation of harmful and toxic organic substances, dyes, and chemicals has been considered to be a suitable candidate for removing organic pollution from water, [5][6][7][8] where photooxidation dominates the degradation of the organic molecules. The full process of photocatalytic water splitting into H 2 and O 2 is believed to be promising for generating renewable and green energy, [9,10] and the process includes the photoreduction and photooxidation of water, respectively. The photocatalytic reduction of CO 2 can convert solar energy into chemical energy, stored as CH 4 , CO, CH 3 OH, etc. [11][12][13] These processes can help reduce the pressure of the global warming crisis and supply usable renewable energy. Due to the precise control of photocatalytic reduction and oxidation, photocatalytic molecular synthesis has also attracted much interest, which provides a sustainable pathway for green synthesis. [14][15][16] For an efficient photocatalytic process, solar light harvesting and a redox process based on photogenerated charge carriers are essential steps. Solar light harvesting consists of light absorption and charge carrier excitation steps, which can be expressed as the light utilization efficiency. The efficiency determines the total energy converted from solar light and is mostly determined by the band structure of the semiconductor applied to the photocatalytic process.The photocatalytic process has been extensively studied by examining the response of photocatalysts to UV light, due to its relatively high photonic energy. As is well known, UV light energy amounts to no more than 5% of the solar light energy. Visible light and near-infrared (NIR) light contain approximately 90% of the solar light energy. To utilize solar light in order to solve the environmental and energy crisis, visible light and NIR-light-activated photocatalysts are essential. For decades, many studies have focused on expanding the range over which a photocatalyst can utilize the solar light spectrum. In addition, there are several good reviews summarizing recent progress on UV-vis-light-activated photocatalysts, as well as strategies to improve the photocatalytic efficiency. [17][18][19][20] As is well known, the photonic energy of visible light is low, and that of NIR light is even lower. Photoinduced redox requires an initial amount of energy to activate the process; however, NIR photonic energy may be too low to realize photoinduced The realization of light-chemical energy conversion using solar light is an ideal goal in renewable energy studies. Many reports are concerned with extracting energy from solar light and the use/storage of the converted energy. Due to the progress in solar light absorption with various photocatalysts, the vari...

show abstract

“…Therefore, Wang et al . pointedly synthesized 2‐arylbenzimidazoles ( 13 ) using Fe 3 O 4 nanoparticles functionalized by PEG‐400, under aqueous conditions in air at room temperature . About 74–96% of the product was obtained in 4–15 h (Scheme , Table , entry 1).…”

Section: Nano‐transition Metal Catalyzed Oxidative Coupling Of O‐phenmentioning

confidence: 99%

Recent Trends in the Synthesis of Benzimidazoles From o‐Phenylenediamine via Nanoparticles and Green Strategies Using Transition Metal Catalysts

Singhal

Khanna

Panda

et al. 2019

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

Benzimidazole is a heterocyclic moiety of immense importance as it acts as a primary “biolinker” in diverse synthetic routes to obtain bioactive compounds. Substituted benzimidazoles are known to possess a varied range of pharmacological applications, namely, anti‐cancer, anti‐diabetic, anti‐inflammatory, and antiviral like anti‐HIV and anti‐fungal. A number of reviews covering the important aspects of benzimidazoles such as pharmacological activities, SAR studies, and well‐known methods of synthesis have appeared in the literature. However, green synthetic methods particularly using transition metal (TM) catalysts and their nanoparticles, although being more viable and extensively applied by researchers in the present scenario, have not been exclusively and expansively reviewed. Besides this, the vital precursors required for knitting the skeleton of benzimidazole are mainly o‐aryldiamines. The conventional synthesis generally involved the condensation of these diamines with carbonyl/carboxylic acid derivatives either via high temperature heating or via adding strong acids, mostly resulting in poor yields or mixtures. However, recent trends are replacing these conditions by mild and green conditions through TM catalysts. Therefore, the current review emphasizes on the recent trends adopted in the synthesis of benzimidazoles using condensation reaction of o‐phenylenediamines and various aldehydes/ester/amide/alcohols with TM in a catalytic role in nanoform and under environmentally benign green conditions.

show abstract

On Abelian codes over $${\mathbb {Z}}_{m}$$ Z m

Cited by 39 publications

References 13 publications

Charge‐Transport Processes in Host–Dopant Organic Semiconductors

Charge‐Transport Processes in Host–Dopant Organic Semiconductors

Full‐Spectrum Solar‐Light‐Activated Photocatalysts for Light–Chemical Energy Conversion

Recent Trends in the Synthesis of Benzimidazoles From o‐Phenylenediamine via Nanoparticles and Green Strategies Using Transition Metal Catalysts

Contact Info

Product

Resources

About