Archive for 2011

Hot Articles: Pt-based dye-sensitized solar cells, self-rolling carbon microtubes, and preparing high-quality graphene

Graphical abstract: D–π–M–π–A structured platinum acetylide sensitizer for dye-sensitized solar cells

D–π–M–π–A structured platinum acetylide sensitizer for dye-sensitized solar cells: A platinum acetylide sensitizer for use in dye-sensitized solar cells has been developed by scientists at East China Normal University. The team used the sensitizer to create a device with a solar to electricity conversion efficiency of 3.28%, which they claim is higher than most solar cells using platinum complexes as dye sensitizers. Future work will focus on expanding the UV-Vis absorption spectrum of the Pt-complexes, extend electron lifetime and further improve the optical properties of devices by molecular structure design. (J. Mater. Chem., 2011, DOI: 10.1039/C1JM10942A, Advance Article)

Graphical abstract: Low-temperature rapid synthesis of high-quality pristine or boron-doped graphene via Wurtz-type reductive coupling reactionLow-temperature rapid synthesis of high-quality pristine or boron-doped graphene via Wurtz-type reductive coupling reaction: A rapid and low-temperature method to prepared high-quality graphene has been developed by Chinese scientists. The method doesn’t require any transition metal catalysts and it can be adapted to prepare boron-doped graphene by adding BBr3. The team claim the method provides a cost-effective route to prepare high-quality pristine or doped graphene for mass production. (J. Mater. Chem., 2011, DOI: 10.1039/C1JM11184A, Advance Article)

Graphical abstract: Fabrication of carbon microtubes from thin films of supramolecular assemblies via self-rolling approachFabrication of carbon microtubes from thin films of supramolecular assemblies via self-rolling approach: A novel self-rolling approach to create carbon and carbon/metal hybrid microtubes could lead to programmable fabrication of spirals, springs and rings say German scientists. The team that developed this approach claim that it could be extended to fabricate a range of carbon/metal hybrid microtubes with control of the inner and outer diameters. These microtubes are expected to have potential applications in areas such as microfluidic devices, catalysis, sensing devices, and waveguiding. (J. Mater. Chem., 2011, DOI: 10.1039/C1JM11258A, Advance Article)

Interested to know more? Read all the articles for free until the 19th July.

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.

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Themed Issue on Integrating Functionality into Metal-Organic Frameworks

Journal of Materials Chemistry is planning to produce a themed issue on Integrating Functionality into Metal-Organic Frameworks in 2012. Please e-mail the editorial office, materials-rsc@rsc.org, if you are interested in contributing an article.

The Guest Editors of the issue will be Professor Stefan Kaskel (Dresden, Germany) and Professor Roland Fischer (Bochum, Germany).

Porous Metal-Organic Frameworks (MOFs) have set records in recent years regarding specific surface area and pore volume. The field of MOFs has exploded moving from applications in adsorption towards more and more rational integration of specific functions revealing novel applications in drug delivery and sensing, including attractive mechanical and magnetic properties. Specific functionalization allows for the integration of chiral groups for enantioselective catalysis and separation. The search for very large pores and higher specific surface area remains a key challenge in the rapidly expanding field of MOFs, especially in catalysis and high pressure gas storage. High porosity enables anchoring of molecular catalysts, impregnation with catalyst precursors, or adsorption of larger drug molecules in MOFs for fine chemical transformation, nanoparticle formation, sensing, or drug delivery. Self assembly and thin film techniques are essential for device integration of such novel porous materials.

The deadline for the receipt of manuscripts for this themed issue is
November 1.
 

Manuscripts can be submitted using the RSC’s on-line submissions service. Please clearly mark that the manuscript is submitted for the themed issue on Integrating Functionality into Metal-Organic Frameworks (short: MOFs).

Please would you inform the editorial office by e-mail at materials-rsc@rsc.org as soon as possible if you plan to submit to the issue and whether your contribution will be original research or a review-type article. We would like to have a list of authors who intend to contribute as soon as possible.

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Journal of Materials Chemistry Issue 25

Front cover image for Journal of Materials Chemistry, Issue 25, 2011

The outside front cover showcases a Feature Article on Biosensors based on one-dimensional nanostructures by Ian Matthew Feigel, Harindra Vedala and Alexander Star. A paper by Xudong Wang and co-workers on Evolution of zinc oxide nanostructures through kinetics control is highlighted on the inside front cover.

Hot Articles in Issue 25:

Read the full issue here:

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.

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This week’s hot articles on red dopants for PLEDs and controlling the wetting on surface-modified textiles

Graphical abstract: Color tuning of Novel 2,1,3-Naphthothiadiazole and 2,1,3-Benzoselenadiazole based D-A-D′ Type dopants to realize highly efficient saturated red emission in non-polar solventsColor tuning of Novel 2,1,3-Naphthothiadiazole and 2,1,3-Benzoselenadiazole based D-A-D′ Type dopants to realize highly efficient saturated red emission in non-polar solvents: In an effort to developed brighter and more efficient flat panel displays Lixiang Wang and co-workers at Changchun Institute of Applied Chemistry, China, created a series of red dopants for polymer light emitting diodes. The red dopants have enhanced electron affinity, saturated red emission wavelength and high fluorescence efficiency which the team hope should make them suitable for use in devices. (J. Mater. Chem., 2011, DOI: 10.1039/C1JM11204J, Advance Article)

Graphical abstract: Controlling the wettability properties of polyester fibers using grafted functional nanomaterialsControlling the wettability properties of polyester fibers using grafted functional nanomaterials: A simple and effective method to control the wettability of textile fibres has been developed by scientists at Institute of Nanotechnology and Advanced Materials, Israel. The approach relies on the surface modification of PET fibers with functional nanomaterials. The team led by Jean-Paul Lellouche claims that the silica layer’s optical transparency, chemical stability, and nontoxicity, means that fabric modified with this method will not reduce the color and morphology of PET fabrics. (J. Mater. Chem., 2011,  DOI: 10.1039/C1JM10823A, Advance Article)

Read the articles for free until 12th July

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Journal of Materials Chemistry News on Twitter

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Journal of Materials Chemistry Lectureship winner

Liberato MannaWe are delighted to announce Liberato Manna has won the 2011 Journal of Materials Chemistry Lectureship.

Professor Manna is the second winner of the Journal of Materials Chemistry Lectureship. The Editorial Board chose Professor Manna in recognition of the contribution he has made to the materials chemistry field. Professor Manna will present the lectureship at 3 conferences (details will be announced shortly).

Liberato Manna received both his MSc (1996) and his PhD (2001) in Chemistry from the University of Bari, Italy. During his PhD and later as a postdoc, he worked at UC Berkeley. In 2003 he became researcher at the National Nanotechnology Lab in Lecce, Italy, and in 2009 he was appointed head of the Nanochemistry Department at the Italian Institute of Technology, Genova, Italy. Since 2010 he is also professor of Quantum Nanoscience at TU Delft, The Netherlands. His research interests are the synthesis, structural characterization and assembly of inorganic nanostructures for applications in energy, photonics and biology.

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.Journal of Materials Chemistry News on twitter

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Conference: 7th International Symposium on Stimuli-Responsive Materials

Announcing the 7th International Symposium on Stimuli-Responsive Materials (October 24-26th, 2011 in Hattiesburg, MS, USA). Leading scientists from a variety of disciplines will discuss recent advances in adaptive materials at the interfaces of chemistry, physics, biology, and engineering. This symposium will build on a successful six year history of assembling experts in the area of stimuli-responsive/smart materials to discuss issues related to fundamental science and real-world applicability.

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.

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Hot Article: Encoding & decoding with DNA-nanoparticle conjugates

A strategy for encoding & decoding DNA based on DNA–Au nanoparticle conjugates has been developed by South Korean scientists. The system uses amphiphilic polymer-protected DNA–Au nanoparticles. The DNA-encoded probes can be readily decoded using DNA–AuNP hybridization and dark-fieldbased AuNP scattering on microarrayed surface. Jwa-Min Nam and co-workers at Seoul National University say that the particles are stable in a wide range of salt concentrations, pH and temperatures and sustain their stability even after the addition of D,L-dithiothreitol. These particles could eventually find be used in artificial coding systems such forgery protection, forensics and multiplexing bioprobes.

 Graphical abstract: Highly stable, amphiphilic DNA-encoded nanoparticle conjugates for DNA encoding/decoding applications

Interested to know more? Read the full article for free until 8th July.

Highly stable, amphiphilic DNA-encoded nanoparticle conjugates for DNA encoding/decoding applications: Dong-Kwon Lim, Min-Hao Cui and Jwa-Min Nam, J. Mater. Chem., 2011, DOI: 10.1039/c1jm11150g (Advance Article)

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.

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Organic Optoelectronic Materials Themed Issue

Journal of Materials Chemistry will publish a themed issue on Organic Optoelectronic Materials in 2012. Please contact the editorial office if you would like to contribute an article.

The Guest Editors of the issue will be Professors Wenping Hu (ICCAS, China), Klaus Müllen (MPI-P Mainz, Germany) and Zhenan Bao (Stanford University). The themed issue is dedicated for the celebration of Prof. Daoben Zhu’s 70th birthday.

Organic Optoelectronic Materials with special functionalities stem from the increasing ability to manipulate and tune the optoelectronic properties of organic and polymeric materials. This was achieved through the systematic variation of their molecular components, to allow for molecular-level control of the solid-state structure via arrangement of the functional molecular components into a defined solid architecture.

With the development in materials, a number of applications have shown great promise for practical applications. Organic light-emitting diodes made the development of a superior flat-panel display technology possible. This display technology has been used in diverse applications ranging from cellular phones to large-area high-definition television screens. Organic solar cells now can reach quantum efficiency over 9%, which makes them attractive for delivering cheap solar power. Organic field-effect transistors have resulted in a revolution in developing fast and inexpensive integrated circuits based on organic semiconductor elements. When combined with the advantage of solution processability, organic semiconductors allow for the use of a variety of printing techniques, such as inkjet printing and stamping, to fabricate large area devices at low cost. The mechanical properties of organic semiconductors also allow for flexible electronics. However, the most distinguishing feature of organic semiconductors is their chemical versatility, which permits the incorporation of functionalities through molecular design. Organic integrated circuits have already been realized, which has accelerated the development of “plastic electronics” and “printed electronics”.

The aim of the themed issue focuses on organic and polymer materials with high electroluminescent efficiency for organic light-emitting diodes, with high quantum efficiency for organic solar cells, with high mobility for organic field-effect transistors, and so on. Certainly, it is a highly interdisciplinary science, the research and development of organic optoelectronic materials continually derives ideas, methods, and technologies from other research fields. Knowledge, results and techniques derived from chemistry, physics, materials science, semiconductors, electronics, nanotechnology and biology have been adopted in the design and development of organic optoelectronic materials. For example, the understanding of how the properties of materials impact their microstructure, and in turn how they affect device performance; modification and control of the interface between organic layers and organic/metal electrode; the understanding the processes that contribute to the operation of organic devices; and the integration of organic elements with existing silicon technology to realize high performance electronic devices and circuits, have all been crucial in the development of organic electronics and their corresponding applications.

Journal of Materials Chemistry wishes to publish original research that demonstrates novelty and advance, either in the chemistry used to produce materials or in the properties/applications of the materials produced. All manuscripts will be handled by the Journal of Materials Chemistry Editorial office and refereed in accordance to the standard procedures of the journal.

The deadline for the receipt of manuscripts for this themed issue is 3rd October 2011.

Manuscripts can be submitted using the RSC’s on-line submissions service. Please clearly mark that the manuscript is submitted for the themed issue on Organic Optoelectronic Materials. We very much hope that you will be able to contribute to this themed issue and look forward to hearing from you at your earliest convenience.

Professor Wenping Hu, Guest Editor
Professor Klaus Müllen, Guest Editor
Professor Zhenan Bao, Guest Editor
Dr Liz Davies, Editor, Journal of Materials Chemistry

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Conversion of carbon dioxide to few-layer graphene

Burning magnesium metal in dry ice forms nanosheets of graphene say US scientists. The exact mechanism for the formation of graphene is still under investigation but the team thinks that the rapid reaction kinetically favours graphene over graphite. The synthetic process is cost effective and can be used to produce few-layer graphene in large quantities.

 Graphical abstract: Conversion of carbon dioxide to few-layer graphene

Amartya Chakrabarti, Jun Lu, Jennifer C. Skrabutenas, Tao Xu, Zhili Xiao, John A. Maguire and Narayan S. Hosmane, J. Mater. Chem., 2011, DOI:10.1039/C1JM11227A (Advance Article)

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow Journal of Materials Chemistry on Twitter.

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Journal of Materials Chemistry, issue 24, 2011 is out now!

Journal of Materials Chemistry inside and outside front covers

Read the full issue here: 

The Highlight article on the front cover is Fabrication of quantum dot-based photonic materials from small to large via interfacial self-assembly by Ziyi Yu, Cai-Feng Wang and Su Chen at Nanjing University of Technology, China. The inside front cover features a paper on Electrospinning fabrication, structural and mechanical characterization of rod-like virus-based composite nanofibers by Xiaodong Li, Qian Wang and co-workers at the University of South Carolina and the Institute of Physics and Chemistry, Chinese Academy of Sciences.

6 articles in the issue were selected as hot articles:

  • Electrospinning fabrication, structural and mechanical characterization of rod-like virus-based composite nanofibers 
  • Efficient quantum cutting in hexagonal NaGdF4:Eu3+ nanorods
  • Hiearchical ZnO rod-in-tube nano-architecture arrays produced via a two-step hydrothermal and ultrasonication process
  • Preparation of multifunctional mesoporous silica particles: the use of an amphiphilic silica precursor with latent amine functionality in selective functionalization of the inner surface
  • Plasma functionalized PDMS microfluidic chips: towards point-of-care capture of circulating tumor cells
  • Towards controlled synthesis and better understanding of highly luminescent PbS/CdS core/shell quantum dots
  •  

    To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow the Journal of Materials Chemistry on Twitter.

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