Directed self-assembly of viologen-based 2D semiconductors with intrinsic UV-SWIR photoresponse after photo/thermo activation.

Nature Communications
Xiao-Qing YuGuo-Cong Guo

Abstract

Extending photoresponse ranges of semiconductors to the entire ultraviolet-visible (UV)-shortwave near-infrared (SWIR) region (ca. 200-3000 nm) is highly desirable to reduce complexity and cost of photodetectors or to promote power conversion efficiency of solar cells. The observed up limit of photoresponse for organic-based semiconductors is about 1800 nm, far from covering the UV-SWIR region. Here we develop a cyanide-bridged layer-directed intercalation approach and obtain a series of two viologen-based 2D semiconductors with multispectral photoresponse. In these compounds, infinitely π-stacked redox-active N-methyl bipyridinium cations with near-planar structures are sandwiched by cyanide-bridged MnII-FeIII or ZnII-FeIII layers. Radical-π interactions among the infinitely π-stacked N-methyl bipyridinium components favor the extension of absorption range. Both semiconductors show light/thermo-induced color change with the formation of stable radicals. They have intrinsic photocurrent response in the range of at least 355-2400 nm, which exceeds all reported values for known single-component organic-based semiconductors.

References

Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Oct 31, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·David QuiñoneroPere M Deyà
Jan 13, 2010·Chemical Communications : Chem Comm·Ming-Sheng WangGuo-Cong Guo
Oct 20, 2012·Chemical Society Reviews·John R Swierk, Thomas E Mallouk
Jan 16, 2015·Journal of the American Chemical Society·Jeffrey A ChristiansPrashant V Kamat
Aug 19, 2015·Journal of the American Chemical Society·Li-Zhen CaiGuo-Cong Guo
Nov 2, 2016·Journal of the American Chemical Society·Lei SunMircea Dincă
Aug 11, 2017·Chemical Society Reviews·Huan Wang, Dong Ha Kim
Jan 24, 2018·Nature Materials·Jianhui HouFeng Gao
Feb 10, 2018·Journal of the American Chemical Society·Cai SunGuo-Cong Guo
Nov 24, 2018·Chemical Communications : Chem Comm·Yong-Qin WeiGuo-Cong Guo
Apr 24, 2019·Chemical Reviews·Jacqueline M ColeChristopher B Cooper
Jul 5, 2019·Nature·Markus EinzingerMarc A Baldo

❮ Previous
Next ❯

Citations

Sep 16, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Meng-Hua LiMei-Jin Lin
Aug 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Ming-Hua YouMei-Jin Lin
Oct 10, 2020·Chemical Communications : Chem Comm·Ting FuShuang-Quan Zang
Oct 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Ai-Ju LiuGuo-Ming Wang
Dec 23, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Song-De HanGuo-Ming Wang

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
electron spin resonance
ESR

Software Mentioned

SHELXTL TM
Gaussian
CASTEP

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Science Progress
J P ANDREWS
Journal of Physics. Condensed Matter : an Institute of Physics Journal
L C Lew Yan Voon, Kehwi Wu
Klinicheskaia meditsina
Ia ABRIKOSOV
© 2021 Meta ULC. All rights reserved