Project detail

Molecular Energy Harvesting Materials: Towards Breaking the Limits

Duration: 01.01.2019 — 31.12.2021

Funding resources

Czech Science Foundation - Standardní projekty

- whole funder (2019-03-04 - 2021-12-31)

On the project

The main scientific goal of the project is to significantly broaden materials basis that exhibit singlet fission (SF) and as such can be used in solar cells breaking the Shockley-Queisser limit. We will focus on development of new chromophores that are air-stable, highly absorptive, solution processable and potentially inexpensive and thus can provide suitable chromophore for harvesting high-energy photons for solar cells exceeding efficiencies set by the limit for single-threshold device. The strategy will be based on development of new dyes and pigments exhibiting singlet fission via careful tuning of the chromophore energetics and intermolecular electron coupling. Our preliminary data show, that such modifications can be done for several stable pigments.

Keywords
Molecular materials; Singlet fission; Solar cells

Mark

GA19-22783S

Default language

English

People responsible

Vala Martin, prof. Mgr., Ph.D. - principal person responsible

Units

Materials Research Centre
- (2018-04-09 - not assigned)

Results

VALA, M.; RAIS, D.; KRAJČOVIČ, J.; WEITER, M. Triplet states in thin films of diketopyrrolopyrrole derivatives. 2019.
Detail

RAIS, D.; TOMAN, P.; ACHARYA, U.; PANTHI, Y.R.; MENŠÍK, M.; ZHIGUNOV, A.; THOTTAPPALI, M.A.; PFLEGER, J.; VALA, M.; MARKOVÁ, A.; STŘÍTESKÝ, S.; WEITER, M.; CIGÁNEK, M.; KRAJČOVIČ, J.; PAUK, K.; IMRAMOVSKÝ, A.; ZAYKOV, A.; MICHL, J. Singlet Fission in Thin Solid Films of Bis(thienyl)diketopyrrolopyrroles. ChemPlusChem, 2020, vol. 2020, no. 85, p. 2689-2703. ISSN: 2192-6506.
Detail

GEORGIEV, A.; YORDANOV, D.; ZHIVKOV, I.; DIMOV, D.; NAZAROVA, D.; WEITER, M.; . Azomethine phthalimides fluorescent E -> Z photoswitches. Journal of Photochemistry and Photobiology A:Chemistry, 2020, vol. 393, no. 112443, p. 1-14. ISSN: 1010-6030.
Detail

PAUK, K.; LUŇÁK, S.; RŮŽIČKA, A.; MARKOVÁ, A.; TEICHMANOVÁ, K.; MAUSOVÁ, A.; KRATOCHVÍL, M.; SMOLKA, R.; MIKYSEK, T.; WEITER, M.; IMRAMOVSKÝ, A.; VALA, M. Colour-tuneable solid-state fluorescence of crystalline powders formed from push-pull substituted 2,5-diphenyl-stilbenes. RSC Advances, 2022, vol. 54, no. December, p. 34797-34807. ISSN: 2046-2069.
Detail

VESELÝ, D.; YORDANOV, D.; VALA, M.; WEITER, M.; KRAJČOVIČ, J.; GEORGIEV, A. Acid-base fluorescence switching and aggregation induced emission (AIE) of phenylene-thienyl chalcones. Journal of Molecular Liquids, 2024, vol. 397, no. 1, p. 1-11. ISSN: 1873-3166.
Detail

Rastislav Smolka, Dancho Yordanov, Kosuke Nakashima , Martin Vala , Jozef Krajčovič , Martin Weiter , Anton Georgiev. Control over rotary motion and multicolour switching in 3-hydroxyphtha-limide fluorophores: An interplay between AIE and ESIPT. DYES AND PIGMENTS, 2023, vol. 215, no. 1, p. 111279-111292. ISSN: 0143-7208.
Detail

KRATOCHVÍL, M.; THOTTAPPALI, M. A.; LUŇÁK, S.; PAUK, K.; RAIS, D.; MARKOVÁ, A.; PFLEGER, J.; IMRAMOVSKÝ, A.; VALA, M. Solid-State Absorption, Luminescence, and Singlet Fission of Furanyl-Substituted Diketopyrrolopyrroles with Different π-Stacking Arrangements. ChemPhotoChem, 2023, vol. e202300201, no. October, ISSN: 2367-0932.
Detail

PAUK, K., LUŇÁK, S., MACHALICKÝ, O., PERDIH, F., VYŇUCHAL, J., ELIÁŠ, Z., IMRAMOVSKÝ, A. Four Slip-Stacked Arrangements, Three Types of Photophysics: Crystal Structure and Solid-State Fluorescence of 3,6-Diaryl Substituted Furo[3,4-c]furanone Polymorphs and Regioisomers. ChemPlusChem, 2023, vol. 88, no. 8, ISSN: 2192-6506.
Detail

YORDANOV, D.; SMOLKA, R.; NAKASHIMA, K.; HIRASHIMA, S.; MATSUSHIMA, Y.; VALA, M.; KRAJČOVIČ, J.; WEITER, M.; MIURA, T.; GEORGIEV, A. Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes. JOURNAL OF ORGANIC CHEMISTRY, 2023, vol. 88, no. 24, p. 17206-17214. ISSN: 0022-3263.
Detail

LUŇÁK, S.; WEITER, M.; VALA, M. Complete Set of Diketopyrrolopyrrole Centrosymmetrical Cofacial Stacked Pairs. CHEMPHYSCHEM, 2022, vol. 23, no. 21, ISSN: 1439-4235.
Detail

Responsibility: Vala Martin, prof. Mgr., Ph.D.