Investigation of KBiFe2O5 as a Photovoltaic Absorber

Thomas Fix (1) , G. Schmerber (2) , J.-L. Rehspringer (2) , C. Leuvrey (2) , S. Roques (1) , M. Lenertz (3) , D. Muller (1) , H. Wang (4) , Abdelilah Slaoui (1)

1 ICube - Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie
2 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
3 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
4 Perdue University - Department of Computer Science

KBiFe 2 O 5 (KBFO) was grown by pulsed laser deposition (PLD) on SrTiO 3 (001) (STO), 1 at% Nb-SrTiO 3 (001) (Nb-STO) and MgAl 2 O 4 (001) (MAO). In the case of MAO substrate, epitaxial growth is obtained. As its bandgap is relatively low (1.6 eV in the bulk), KBFO is a promising candidate for oxide photovoltaics. In this work we examine the growth of KBFO by PLD by looking at its structure and composition and we investigate the optical properties of the films obtained. A photovoltaic architecture based on KBFO films is proposed and a solar cell behaviour based on KBFO absorber is obtained.

Keywords: thin film; oxide; pulsed laser deposition; solar cell; photovoltaics 2

Domains: Engineering Sciences [physics]; Materials; Engineering Sciences [physics]; Chemical and Process Engineering; Engineering Sciences [physics]; Electric power

Thomas Fix, G. Schmerber, J.-L. Rehspringer, C. Leuvrey, S. Roques, et al.. Investigation of KBiFe2O5 as a Photovoltaic Absorber. ACS Applied Energy Materials, 2019, 2 (11), pp.8039-8044. ⟨10.1021/acsaem.9b01509⟩. ⟨hal-02549953⟩