MICROCONCENTRATOR PEROVSKITE SOLAR CELLS FOR SPACE APPLICATIONS

Date

Jan 14, 2027

Time

1:00 PM - 2:00 PM

Speaker

Prof. Eugene A. Katz

Affiliation

Ben-Gurion University of the Negev

Language

en

Main Topic

Materialien

Host

Ines Firlle

Description

This study was motivated by our development of perovskite solar cells (PSCs) for space applications, which are expected to operate effectively under concentrated sunlight. PSCs could offer significant advantages for space applications, including resilience to cosmic radiation and the ease of fabricating micro-cells for ultra-compact micro-concentrators capable of high specific power. We present experimental results on the light-intensity dependence of PSC power conversion efficiency (PCE) over a wide range of solar concentrations. We have concluded that PCE under high light intensity is limited mostly by losses in short-circuit current, ISC, indicating considerable bimolecular combination in short-circuit conditions. By parallel measurement of voltage-dependent photocurrent and photoluminescence (PL) under both laser and concentrated sunlight illumination, we have confirmed considerable photoluminescence in short-circuited PSC. Possible mechanisms of the effect and pathways of its suppression are discussed. First results on such suppression are presented. In addition to the main part of the talk, two bonuses will be suggested:(1) observation of a similar sublinear dependence of ISC on light intensity was observed in outdoor studies of terrestrial perovskite cells and mini-modules; (2) my historical exploration of the discovery of mineral perovskite in the 19th century and the name we use today.

Links

• Seminars at the IFW

Last modified: Sep 27, 2026, 7:37:54 AM