PMID: 15245130Jul 13, 2004Paper

Exciton regeneration at polymeric semiconductor heterojunctions

Physical Review Letters
A C MorteaniC Silva

Abstract

Control of the band-edge offsets at heterojunctions between organic semiconductors allows efficient operation of either photovoltaic or light-emitting diodes. We investigate systems where the exciton is marginally stable against charge separation and show via E-field-dependent time-resolved photoluminescence spectroscopy that excitons that have undergone charge separation at a heterojunction can be efficiently regenerated. This is because the charge transfer produces a geminate electron-hole pair (separation 2.2-3.1 nm) which may collapse into an exciplex and then endothermically (E(A)=100-200 meV) back transfer towards the exciton.

Citations

Sep 9, 2010·Proceedings of the National Academy of Sciences of the United States of America·C G ShuttleJ R Durrant
Dec 14, 2012·International Journal of Molecular Sciences·Krishna FeronPaul C Dastoor
May 19, 2007·The Journal of Chemical Physics·John Glenn S Ramon, Eric R Bittner
Jul 25, 2009·The Journal of Chemical Physics·Andrey PereverzevIrene Burghardt
Jun 17, 2008·The Journal of Chemical Physics·E V EmelianovaH Bässler
Sep 27, 2006·The Journal of Chemical Physics·Andrey Pereverzev, Eric R Bittner
Jun 25, 2005·The Journal of Chemical Physics·Eric R BittnerStoyan Karabunarliev
Jul 23, 2005·The Journal of Chemical Physics·Arne C MorteaniCarlos Silva
Aug 27, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lipeng ChenYang Zhao
Dec 20, 2015·The Journal of Physical Chemistry Letters·Roel TempelaarThomas L C Jansen
Mar 13, 2015·Nature Communications·Wendi ChangMarc A Baldo
Oct 11, 2016·Chemical Reviews·Oksana Ostroverkhova
May 5, 2017·Physical Chemistry Chemical Physics : PCCP·Tomomi Shimazaki, Takahito Nakajima
Oct 13, 2015·Physical Chemistry Chemical Physics : PCCP·Heinz Bässler, Anna Köhler
Apr 23, 2015·Physical Chemistry Chemical Physics : PCCP·Tomomi Shimazaki, Takahito Nakajima
Jul 2, 2014·Nature Communications·Françoise ProvencherSophia C Hayes
May 22, 2018·Physical Chemistry Chemical Physics : PCCP·Tomomi ShimazakiTakahito Nakajima
Feb 9, 2016·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Peng SongMengtao Sun
May 8, 2007·Small·Thomas KietzkeKatharina Landfester
Jun 1, 2007·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Norbert Koch
Dec 21, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·David Becker-KochYana Vaynzof
Apr 5, 2008·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Antoine Van VoorenJérôme Cornil
Aug 31, 2010·Advanced Materials·Carsten DeibelVladimir Dyakonov
Sep 28, 2010·Physical Chemistry Chemical Physics : PCCP·Ryan D PensackJohn B Asbury
Sep 2, 2006·Nature Materials·Gregory D Scholes, Garry Rumbles
Sep 2, 2005·Angewandte Chemie·John K GreyPaul F Barbara
Apr 5, 2019·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Loren G Kaake

❮ Previous
Next ❯

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.