Abstract
Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degradation in ambient air, requirements of exotic materials or phases, or involvement of inherent energy loss processes. Here we experimentally demonstrate a mechanism of photon upconversion in a thin film, binary mixture of organic chromophores that provides a pathway to overcoming the aforementioned disadvantages. This singlet-based process, called Cooperative Energy Pooling (CEP), utilizes a sensitizer-acceptor design in which multiple photoexcited sensitizers resonantly and simultaneously transfer their energies to a higher-energy state on a single acceptor. Data from this proof-of-concept implementation is fit by a proposed model of the CEP process. Design guidelines are presented to facilitate further research and development of more optimized CEP systems.
| Original language | English |
|---|---|
| Article number | 14808 |
| Journal | Nature Communications |
| Volume | 8 |
| DOIs | |
| Publication status | Published - Mar 15 2017 |
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ASJC Scopus subject areas
- Chemistry(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Physics and Astronomy(all)
Cite this
Experimental demonstration of photon upconversion via cooperative energy pooling. / Weingarten, Daniel H.; Lacount, Michael D.; Van De Lagemaat, Jao; Rumbles, Gary; Lusk, Mark T.; Shaheen, Sean E.
In: Nature Communications, Vol. 8, 14808, 15.03.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental demonstration of photon upconversion via cooperative energy pooling
AU - Weingarten, Daniel H.
AU - Lacount, Michael D.
AU - Van De Lagemaat, Jao
AU - Rumbles, Gary
AU - Lusk, Mark T.
AU - Shaheen, Sean E.
PY - 2017/3/15
Y1 - 2017/3/15
N2 - Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degradation in ambient air, requirements of exotic materials or phases, or involvement of inherent energy loss processes. Here we experimentally demonstrate a mechanism of photon upconversion in a thin film, binary mixture of organic chromophores that provides a pathway to overcoming the aforementioned disadvantages. This singlet-based process, called Cooperative Energy Pooling (CEP), utilizes a sensitizer-acceptor design in which multiple photoexcited sensitizers resonantly and simultaneously transfer their energies to a higher-energy state on a single acceptor. Data from this proof-of-concept implementation is fit by a proposed model of the CEP process. Design guidelines are presented to facilitate further research and development of more optimized CEP systems.
AB - Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degradation in ambient air, requirements of exotic materials or phases, or involvement of inherent energy loss processes. Here we experimentally demonstrate a mechanism of photon upconversion in a thin film, binary mixture of organic chromophores that provides a pathway to overcoming the aforementioned disadvantages. This singlet-based process, called Cooperative Energy Pooling (CEP), utilizes a sensitizer-acceptor design in which multiple photoexcited sensitizers resonantly and simultaneously transfer their energies to a higher-energy state on a single acceptor. Data from this proof-of-concept implementation is fit by a proposed model of the CEP process. Design guidelines are presented to facilitate further research and development of more optimized CEP systems.
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U2 - 10.1038/ncomms14808
DO - 10.1038/ncomms14808
M3 - Article
VL - 8
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 14808
ER -