Home  Guidelines for Reviewers About the Journal News Editorial Board Aims & Scope Subscription Contact us Announcement Peer Review Policy Content
Early Edition  //  Current Issue  //  Archives  //  Most Read
Cover Illustration
2021, Vol.7  No.2
The cover picture shows factors critical for the production of organic NIR photodetectors capable of detecting NIR light beyond 1000 nm. At the heart of the problem is the challenge of producing conjugated materials that effectively combine sufficiently low bandgaps (Eg< 1.1 eV), appropriate frontier orbital energies, suitable solubility, and good film formation properties. Although a wealth of polymers and small molecules have been reported and investigated, there are currently only nine materials that provide devices capable of detection beyond 1200 nm. The history, current progress, and future challenges of producing organic photodetectors able to access the deeper portion of the NIR spectrum is reviewed in this report. More details are discussed in the article by Rasmussenet al.on page 200019.
Online ISSN: 2414-3421
  About the Journal
    » About Journal
    » Editorial Board
    » Online Submission
    » Guidelines for Authors
    » Download Templates
    » Copyright Agreement
    » Guidelines for Reviewers
    » Online Peer Review
    » Online Editor Work
  Editorial Office
  Virtual Special Issues
  • Table of Content
      30 June 2021, Volume 7 Issue 2 Previous Issue    Next Issue
    For Selected: View Abstracts Toggle Thumbnails
    Contents: Gen. Chem. 2/2021
    General Chemistry. 2021, 7 (2): 0-0.  
    Abstract   PDF (333KB) ( )
    Related Articles | Metrics
    The Enigmas of Surfaces
    Abraham Marmur
    General Chemistry. 2021, 7 (2): 200021-200021.   DOI: 10.21127/yaoyigc20200021
    Abstract   PDF (565KB) ( )
    The properties of surfaces are crucial for many processes in a variety of areas in biology, industry, and daily life. Surprisingly, even though surface phenomena have been studied for more than 200 years by some of the greatest physicists, mathematicians, and engineers, there are still quite a few enigmas to be solved. This paper presents some fundamental enigmas related to the surface tensions of liquids and solids that were either partially solved or yet mostly unsolved.
    References | Related Articles | Metrics
    Meyer-Schuster Rearrangement—Convenient Synthesis of α,β-Unsaturated α-Iodinated Aldehydes and Ketones
    Juri M. Timonen, Petri A. Turhanen
    General Chemistry. 2021, 7 (2): 200023-200023.   DOI: 10.21127/yaoyigc20200023
    Abstract   PDF (596KB) ( )
    The Meyer-Schuster rearrangement reaction has been known for almost a hundred years. It has been used to prepare unsaturated aldehydes, ketones, and even esters from propargyl alcohols. Thirty years ago, the same reaction was found to produce also α-halogenated aldehydes and ketones under suitable conditions. In the last thirty years, several methods have been developed utilizing the Meyer-Schuster rearrangement in the synthesis of halogenated building blocks for use in synthetic chemistry. In this perspective, we describe the progress in the field.
    References | Related Articles | Metrics
    Organic NIR Photodetectors: Pushing Photodiodes Beyond 1000 nm
    Seth C. Rasmussen, Spencer J. Gilman, Evan W. Culver, and Wyatt D. Wilcox
    General Chemistry. 2021, 7 (2): 200019-200019.   DOI: 10.21127/yaoyigc20200039
    Abstract   PDF (998KB) ( )
    Advances in the synthesis of low bandgap (Eg < 1.5 eV) conjugated polymers has produced organic materials capable of absorbing near-infrared (NIR) light (800—2500 nm), with these materials first applied to photodiode NIR detectors in 2007 as an alternative to more traditional inorganic devices. Although the development of organic NIR photodetectors has continued to advance, their ability to effectively detect wavelengths in the low-energy portion of the NIR spectrum is still limited. Efforts to date concerning the production of photo-diode-based devices capable of detecting light beyond 1000 nm are reviewed.
    Related Articles | Metrics
    Fullerene in Carbon Nanoring: A Saturn-Like Supramolecular Complex
    Jie Zhang, Chunru Wang, and Taishan Wang
    General Chemistry. 2021, 7 (2): 200018-200018.   DOI: 10.21127/yaoyigc20200018
    Abstract   PDF (810KB) ( )
    Fullerenes have attracted much attention because of their unique electronic structure and spherical cage shape. Specially, fullerenes have been widely used as guest in supramolecular chemistry due to their spherical structures. Recently, the supramolecular complexes of fullerenes and several types of carbon nanorings have been constructed and investigated. The complex of fullerene in carbon nanoring is like a Saturn, and this unique kind of supramolecular complexes will have potential applications in chemical, material and physical fields. In this review, various complexes of fullerene in carbon nanoring and their special properties are described. We hope to expand the application of these supramolecular complexes in various fields.
    References | Related Articles | Metrics
    Binder-Free Monoliths of Graphene Dried Foam Films Covering Polyaniline for Supercapacitors Electrode
    Wufeng Chen, Junhao Chen, and Lifeng Yan
    General Chemistry. 2021, 7 (2): 200014-200014.   DOI: 10.21127/yaoyigc20200014
    Abstract   PDF (920KB) ( )
    Dried foam films (DFF) of graphene oxide (GO) has been prepared by dipping a titanium mesh in the solution of GO, and then it was reduced by electrochemical method. Next, the as-prepared water-containing reduced grapheme oxide (rGO) DFF film works as electrode for electrocpolymerization of aniline onto its surface for preparing a polyaniline/graphene monolith while the titanium mesh acts as the electron collector. The as-obtained composite film is binder-free and has highly surface area, conductivity, and can be used for supercapacitor electrode. Then network of plenty polyaniline nanoparticles formed on the surface of rGO film by electrochemical polymerization, which works as the material for pseudocapacitance. When the film is used as a supercapacitor electrode, the maximum specific capacitance is as high as 633.4 F g−1 and the specific capacitance retains 75% of the initial after constant charge discharge 5000 cycles at current density of 10 A g−1, indicating that the nanocomposite is a suitable active material for supercapacitors.
    References | Related Articles | Metrics
  News More  
» The special issue on Green Chemistry
» The special issue on Desalination
» The special issue on Organic Synthetic Methodology

  Journal Indexing   
Copyright © General Chemistry, All Rights Reserved.
Address: 425 East 76th Street, Apt 9E, New York, NY, 10021, United States