scholarly journals Strong coupling between excitons in organic semiconductors and Bloch surface waves

2014 ◽  
Vol 104 (5) ◽  
pp. 051111 ◽  
Author(s):  
Stefano Pirotta ◽  
Maddalena Patrini ◽  
Marco Liscidini ◽  
Matteo Galli ◽  
Giacomo Dacarro ◽  
...  
Keyword(s):  
Surface Waves ◽  
Strong Coupling ◽  
Organic Semiconductors

scholarly journals Conductivity and Photoconductivity of a p-type Organic Semiconductor under Ultra-Strong Coupling

2020 ◽  
Author(s):  
Kalaivanan Nagarajan ◽  
Jino George ◽  
Anoop Thomas ◽  
Eloïse Devaux ◽  
Thibault Chervy ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Organic Semiconductors ◽  
Linear Response ◽  
Carrier Transport ◽  
Spectral Response ◽  
Electromagnetic Environment ◽  
Strongly Coupled ◽  
Type Semiconductor ◽  
P Type ◽  
First Time

It has been shown that light-matter strong coupling of materials can lead to modified and often improved properties which has stimulated considerable interest. While charge transport can be enhanced in n-type organic semiconductors by coupling the electronic transition and thereby splitting the conduction band into polaritonic states, it is not clear whether the same process can also influence carrier transport in the valence band of p-type semiconductors. Here we demonstrate for the first time that it is indeed possible to enhance both the conductivity and photoconductivity of a p-type semiconductor rr-P3HT that is ultra-strongly coupled to plasmonic modes. It is due to the hybrid light-matter character of the virtual polaritonic excitations affecting the linear-response of the material. Furthermore, in addition to being enhanced, the photoconductivity of rr-P3HT shows modified spectral response due to the formation of the hybrid polaritonic states. This illustrates the potential of engineering the vacuum electromagnetic environment to improve the opto-electronic properties of organic materials.

scholarly journals Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Raj Pandya ◽  
Richard Y. S. Chen ◽  
Qifei Gu ◽  
Jooyoung Sung ◽  
Christoph Schnedermann ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Organic Semiconductors ◽  
Free Exciton ◽  
External Cavity ◽  
Einstein Condensation ◽  
Strong Light ◽  
Exciton Polaritons ◽  
Organic Optoelectronic ◽  
Bose Einstein ◽  
New Generation

AbstractStrong-coupling between excitons and confined photonic modes can lead to the formation of new quasi-particles termed exciton-polaritons which can display a range of interesting properties such as super-fluidity, ultrafast transport and Bose-Einstein condensation. Strong-coupling typically occurs when an excitonic material is confided in a dielectric or plasmonic microcavity. Here, we show polaritons can form at room temperature in a range of chemically diverse, organic semiconductor thin films, despite the absence of an external cavity. We find evidence of strong light-matter coupling via angle-dependent peak splittings in the reflectivity spectra of the materials and emission from collective polariton states. We additionally show exciton-polaritons are the primary photoexcitation in these organic materials by directly imaging their ultrafast (5 × 106 m s−1), ultralong (~270 nm) transport. These results open-up new fundamental physics and could enable a new generation of organic optoelectronic and light harvesting devices based on cavity-free exciton-polaritons

scholarly journals Conductivity and Photoconductivity of a p-type Organic Semiconductor under Ultra-Strong Coupling

2020 ◽  
Author(s):  
Kalaivanan Nagarajan ◽  
Jino George ◽  
Anoop Thomas ◽  
Eloïse Devaux ◽  
Thibault Chervy ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Organic Semiconductors ◽  
Linear Response ◽  
Carrier Transport ◽  
Spectral Response ◽  
Electromagnetic Environment ◽  
Strongly Coupled ◽  
Type Semiconductor ◽  
P Type ◽  
First Time

It has been shown that light-matter strong coupling of materials can lead to modified and often improved properties which has stimulated considerable interest. While charge transport can be enhanced in n-type organic semiconductors by coupling the electronic transition and thereby splitting the conduction band into polaritonic states, it is not clear whether the same process can also influence carrier transport in the valence band of p-type semiconductors. Here we demonstrate for the first time that it is indeed possible to enhance both the conductivity and photoconductivity of a p-type semiconductor rr-P3HT that is ultra-strongly coupled to plasmonic modes. It is due to the hybrid light-matter character of the virtual polaritonic excitations affecting the linear-response of the material. Furthermore, in addition to being enhanced, the photoconductivity of rr-P3HT shows modified spectral response due to the formation of the hybrid polaritonic states. This illustrates the potential of engineering the vacuum electromagnetic environment to improve the opto-electronic properties of organic materials.

scholarly journals Strong coupling of Bloch surface waves and excitons in ZnO up to 430 K

2021 ◽  
Author(s):  
Sebastian Henn ◽  
Marius Grundmann ◽  
Chris Sturm
Keyword(s):  
Surface Waves ◽  
Strong Coupling

Surface waves on a strong-coupling superconductor

2002 ◽  
Author(s):  
Marina V. Glumova ◽  
Valeri Z. Lozovski ◽  
Dmitry V. Reznik
Keyword(s):  
Surface Waves ◽  
Strong Coupling ◽  
Strong Coupling Superconductor

scholarly journals Strong Coupling between Plasmons and Organic Semiconductors

Electronics ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 303-313 ◽  
Author(s):  
Joel Bellessa ◽  
Clementine Symonds ◽  
Julien Laverdant ◽  
Jean-Michel Benoit ◽  
Jean Claude Plenet ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Organic Semiconductors

scholarly journals Active tuning of longitudinal strong coupling between anisotropic borophene plasmons and Bloch surface waves

2021 ◽  
Author(s):  
Jinpeng Nong ◽  
Xin Xiao ◽  
Fu Feng ◽  
Bo Zhao ◽  
Changjun Min ◽  
...  
Keyword(s):  
Surface Waves ◽  
Strong Coupling
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