Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Designing protein-polymer phosphors for energy-related applications

Seminarium

Abstract:
Hybrid optoelectronics are heralded as the next generation of lighting and photovoltaic technologies in the frame of green photonics. In this context, our efforts encompass the development of sustainable materials for bio-hybrid lighting and photovoltaic applications (1,2). The latter are placed at the forefront of the EU efforts for low-cost production and efficient consumption of electricity, a critical issue for a sustainable development.

Among the most challenging approaches, the use of bio-molecules like fluorescent proteins (FPs) and enzymes as functional components in lighting and photovoltaic devices stands out. Under device fabrication and operation conditions, they quickly denature by light and temperature stress. However, their distinctive ecological features, such as unlimited low-cost production using bacteria and/or fully recyclable nature, strongly encourage their use as a model of sustainability.

Up to date, the state-of-the-art of bio-hybrid solar cells shows lifetimes of a few hours and moderate photocurrents (3), while bio-hybrid lighting has focused on using either protein bio-scaffolds for artificial emitters or DNA layers for charge injection/transport purposes (1). Both, immobilization and stabilization of operational bio-molecules in films, are the common bottlenecks (1-3).

Herein, we show an innovative and easy method to stabilize bio-compounds, i.e., enzymes, FPs, etc. in both elastomeric and rigid polymer films, preserving their bio-functionality over years and months under ambient and device operation conditions, respectively (2). The excellent stability and comfortable handling allowed us to integrate them as color down-converting and light-guiding filters. The so-called protein-polymer phosphors have, therefore, established new concepts for bio-hybrid white light-emitting diodes (4) and solar windows (2c).

We will show a comprehensive understanding about the stabilization concept and degradation mechanism under device operation in concert to both, polymer and FP designs. This has led to remarkable white lighting sources, in which rare-earth inorganic phosphors were replaced by FP-polymer phosphors, achieving efficiencies of 130 lm/W and stabilities over 150 days (4e,f). In addition, solar windows, in which Cd-based QD antennas are replaced by FPs, have also been prepared realazing photon-to-energy conversions close to 6% that are stable for several months (2c). Finally, we will show our first steps towards thin film lighting devices for bio-compatible applications and bio-reactors (2,5).

1) a) V. Fernandez-Luna, P.B. Coto, R.D. Costa*Angew. Chem., Int. Ed. 2018, 57, 8826; b) R.D. Costa* Adv. Funct. Mater. 2018, 28, 1802462; c) E. Fresta, V. Fernandez-Luna, P.B. Coto, R.D. Costa* Adv. Funct. Mater. 2018, 28, 1707011.

2) a) M.D. Weber, L. Niklaus, M. Praeschel, P.B. Coto, U. Sonnewald, R.D. Costa Rubber-like like material for the optimization proteins and its use in lighting, diagnosis, and biocatalysis WO2016203028A1, PCT/EP2016/064097, JP2018521125A, KR20180032568A, CN108028302A, US20180171032A1; b) C.F. Aguiño, R.D. Costa Long-living biohybrid light-emitting diodes EP17382840.1, PCT/EP2018/084356; c) A. Espasa, J.P. Fernández, R.D. Costa Stable high-power bio-hybrid energy-related uses (submitted asap).

3) H. Zhou, J. Xu, X. Liu, H. Zhang, D. Wang; Z. Chen, D. Zhang, T. Fan*, Adv. Funct. Mater., 2018, 13, 1705309

4) a) M.D. Weber, L. Niklaus, M. Pröschel, P.B. Coto, U. Sonnewald, R.D. Costa* Adv. Mater. 2015, 27, 5493; b) L. Niklaus, H. Dakhil, M. Kostrzewa, P.B. Coto, U. Sonnewald, A. Wierschem, R.D. Costa* Mater. Horizons 2016, 3, 340; c) L. Niklaus, S. Tansaz, H. Dakhil, K.T. Weber, M. Pröschel, M. Lang, M.Kostrzewa, P.B. Coto, R. Detsch, U. Sonnewald, A. Wierschem, A.R. Boccaccini,* R.D. Costa* Adv. Funct. Mater. 2017, 27, 1601792; d) C.F. Aguino, M. Lang, V. Fernandez-Luna, M. Pröschel, U. Sonnewald, P. B. Coto, R. D Costa* ACS Omega 2018, 3, 15829; e) V. Fernandez-Luna, D. Sanjuan, A. Cortajarena, P.B. Coto, R.D. Costa* Adv. Funct. Mater. 2019 (submitted); f) A. Espasa, C.F. Aguiño, D. Sanjuan, A. Cortajarena, P.B. Coto, R.D. Costa* Natur. Commun. 2019 (submitted).

5) a) R.D. Costa (Ed.) Light-Emitting Electrochemical Cells, ISBN 978-3-319-58612-0. Springer, 2017; b) E. Fresta, R.D. Costa* J. Mater. Chem. C 2017, 5, 5643.

Föreläsare: Rubén D. Costa, IMDEA Materials Institute, Spain https://materials.imdea.org/people/ruben-d-costa/

Datum: 2020-05-07

Tid: 12:00 - 13:00

Kategorier: Naturvetenskap

Plats: Campus Johanneberg, Kemihuset, sal KC

Kontaktperson: Alesia Tietze

Sidansvarig: |Sidan uppdaterades: 2012-01-02
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?

Denna text är utskriven från följande webbsida:
http://cmb.gu.se/Aktuellt/Kalendarium/Aktuellt_detalj/?eventId=70137051707
Utskriftsdatum: 2020-04-10