Organic Semiconducting Alloys with Tunable Energy Levels

Journal of the American Chemical Society
Jin-Hu DouJian Pei

Abstract

Continuous band structure tuning, e.g., doping with different atoms, is one of the most important features of inorganic semiconductors. However, this can hardly be realized in organic semicondutors. Here, we report the first example of fine-tuning organic semiconductor band structures by alloying structurally similar derivatives into one single phase. By incorporating halogen atoms on different positions of the backbone, BDOPV derivatives with complementary intramolecular or intermolecular charge distributions were obtained. To maximize the Coloumbic attractive interactions and minimize repulsive interactions, they form antiparallel cofacial stacking in monocomponent or in alloy single crystals, resulting in efficient π orbital overlap. Benefiting from self-assembly induced solid state "olefin metathesis" reaction, it was observed, for the first time, that three BDOPV derivatives cocrystallized in one single crystal. Molecules with different energy levels serve like the dopants in inorganic semiconductors. Consequently, as the total number of halogen atoms increased, highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of the alloy single crystals decreased monotonously in the range fr...Continue Reading

References

Sep 6, 2008·Journal of the American Chemical Society·Ingo SalzmannNorbert Koch
Jun 18, 2016·Science·Martin SchwarzeKarl Leo
Oct 5, 2016·Chemical Reviews·Björn LüssemKarl Leo
Feb 15, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Andreas Opitz
Feb 25, 2017·Advanced Materials·Jiake WuHanying Li
Apr 1, 2017·Journal of the American Chemical Society·Seth A SharberSamuel W Thomas Iii
Dec 1, 2017·Chemical Society Reviews·Chengliang WangWenping Hu
Feb 21, 2018·Nature Materials·Naresh B KotadiyaGert-Jan A H Wetzelaer

❮ Previous
Next ❯

Citations

Jan 8, 2021·The Journal of Organic Chemistry·Yirui CaoLei Fang
Mar 20, 2021·The Journal of Physical Chemistry Letters·Sajesh P ThomasBo B Iversen
Mar 25, 2021·Nature Communications·Dandan ZhangHongbing Fu
Apr 29, 2021·Journal of the American Chemical Society·Rebecca L LiWilliam R Dichtel
Jan 4, 2020·ACS Applied Materials & Interfaces·Miao LiZhishan Bo
Oct 23, 2019·Journal of the American Chemical Society·Yongxi LiStephen R Forrest

❮ Previous
Next ❯

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.