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ThforPV SIGNED

New Thermodynamic for Frequency Conversion and Photovoltaics

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

ThforPV project word cloud

Explore the words cloud of the ThforPV project. It provides you a very rough idea of what is the project "ThforPV" about.

otherwise emitters thermodynamic queisser fold below cell refrigeration experimental matches coherence orders shockley limit m prior si energetic innovation constraints near harness nlo ultra cells entropy 1 107 efficiencies junction magnitude harvesting match continue conversion theory emission light showing ir photons generate excitation efficient 6 validation disruptive 27 nonlinear radiation hot enhancement limits photovoltaics thermalization efficiency irrespective experimentally phonons optical sq pv internal splitting lower offers thermal accessible theoretical generates bulk photon lose coupling preliminary push ten event incoherent maximum total energy intensity optics heat opens pvs overcome photovoltaic solar lost fusing ideas 69 single temperature frequency inefficient 10 30 bandgap

Project "ThforPV" data sheet

The following table provides information about the project.

Coordinator	TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY Organization address address: SENATE BUILDING TECHNION CITY city: HAIFA postcode: 32000 website: www.technion.ac.il contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Israel [IL]
Project website	https://excitonics.net.technion.ac.il/
Total cost	1˙500˙000 €
EC max contribution	1˙500˙000 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2014-STG
Funding Scheme	ERC-STG
Starting year	2015
Duration (year-month-day)	from 2015-07-01 to 2020-06-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY Organization address address: SENATE BUILDING TECHNION CITY city: HAIFA postcode: 32000 website: www.technion.ac.il contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	IL (HAIFA)	coordinator	1˙500˙000.00

Map

Project objective

'The Shockley Queisser (SQ) limits the efficiency of single junction photovoltaic (PV) cells and sets the maximum efficiency for Si PV at about 30%. This is because of two constraints: i. The energy PV generates at each conversion event is set by its bandgap, irrespective of the photon’s energy. Thus, energetic photons lose most of their energy to heat. ii. PV cannot harness photons at lower energy than its bandgap. Therefore, splitting energetic photons, and fusing two photons each below the Si bandgap to generate one higher-energy photon that match the PV, push the potential efficiency above the Shockley Queisser limit. Nonlinear optics (NLO) offers efficient frequency conversion, yet it is inefficient at the intensity and the coherence level of solar and thermal radiation. Here I propose new thermodynamic concepts for frequency conversion of partially incoherent light aiming to overcome the SQ limit for single junction PVs. Specifically, I propose entropy driven up-conversion of low energy photons such as in thermal radiation to emission that matches Si PV cell. This concept is based on coupling 'hot phonons' to Near-IR emitters, while the bulk remains at low temperature. As preliminary results we experimentally demonstrate entropy-driven ten-fold up-conversion of 10.6ïm excitation to 1ïm at internal efficiency of 27% and total efficiency of 10%. This is more efficient by orders of magnitude from any prior art, and opens the way for efficient up-conversion of thermal radiation. We continue by applying similar thermodynamic ideas for harvesting the otherwise lost thermalization in single junction PVs and present the concept of 'optical refrigeration for ultra-efficient PV' with theoretical efficiencies as high as 69%. We support the theory by experimental validation, showing enhancement in photon energy of 107% and orders of magnitude enhancement in the number of accessible photons for high-bandgap PV. This opens the way for disruptive innovation in photovoltaics'

Publications

List of publications.
year	authors and title	journal	last update
2016	Dafna Granot, Nimrod Kruger, Assaf Manor, Carmel Rotschild Efficient 10-Fold Upconversion through Steady-State Non-Thermal-Equilibrium Excitation published pages: 174-178, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.5b00481	ACS Photonics 3/2	2019-05-29
2018	N Kruger, M Kurtulik, N Revivo, A Manor, T Sabapathy, C Rotschild Thermally enhanced photoluminescence for energy harvesting: from fundamentals to engineering optimization published pages: 54002, ISSN: 2040-8978, DOI: 10.1088/2040-8986/aab87c	Journal of Optics 20/5	2019-05-27
2016	Svetlana V Boriskina1, Martin A Green, Kylie Catchpole, Eli Yablonovitch4, Matthew C Beard, Yoshitaka Okada, Stephan Lany, Talia Gershon, Andriy Zakutayev, Mohammad H Tahersima, Volker J Sorger, Michael J Naughton, Krzysztof Kempa, Mario Dagenais, Yuan Yao, Lu Xu, Xing Sheng, Noah D Bronstein14, John A Rogers12,13, A Paul Alivisatos14,4,24, Ralph G Nuzzo, Jeffrey M Gordon, Di M Wu, Michael D Wisser, Alberto Salleo, Jennifer Dionne, Peter Bermel, Jean-Jacques Greffet, Ivan Celanovic, Marin Soljacic, Assaf Manor, Carmel Rotschild, Aaswath Raman, Linxiao Zhu, Shanhui Fan, and Gang Chen Roadmap on optical energy conversion published pages: 38-39, ISSN: 2040-8978, DOI: 10.1088/2040-8978/18/7/073004	Journal of Optics	2019-05-27
2015	A. Manor, Leopoldo Martin, and Carmel Rotschild Conservation of photon rate in endothermic photoluminescence and its transition to thermal emission published pages: 585-588, ISSN: 2041-1723, DOI: 10.1364/OPTICA.2.000585	Optica	2019-05-27
2016	Assaf Manor, Nimrod Kruger, Tamilarasan Sabapathy, Carmel Rotschild Thermally enhanced photoluminescence for heat harvesting in photovoltaics published pages: 13167, ISSN: 2041-1723, DOI: 10.1038/ncomms13167	Nature Communications 7	2019-05-27

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