Title:	Novel Photovoltaic Devices Using Ferroelectric Material
Author(s):	R. Ndoukane, F. Balde, D. Kobor, N.C.Y. Fall, M. Tine, P.B. Himbane, L. Motte, J. Solard
Keywords:	Solar Cell, Thin Film (TF), Nanoparticles, Perovskite
Topic:	Perovskites and Other Non-Silicon Materials, MJs and Tandems
Subtopic:	Perovskites
Event:	37th European Photovoltaic Solar Energy Conference and Exhibition
Session:	3BV.1.9
Pages:	649 - 652
ISBN:	3-936338-73-6
Paper DOI:	10.4229/EUPVSEC20202020-3BV.1.9
Price:	0,00 EUR
Document(s):	paper, poster

Abstract/Summary:

---

The photoferroelectric device, in which a homogeneous ferroelectric material is used as a light absorbing layer, has been investigated during the past several decades with numerous ferroelectric oxides. Achieving high power conversion efficiencies in ferroelectric photovoltaics is a longstanding challenge. This work pursues to provide an efficient solar cell, which can be rapidly prepared in an efficient way, using readily available or low cost materials such as ferroelectric material, using a short manufacturing procedure, keeping the material costs and the material impact on the environment very low. Different parameters affect the performances of this new generation photovoltaic cells such as architecture, the type of material used for the active layer, the techniques of fabrication and preparation of different layers. PZN-4.5PT nanoparticles thin films were combined to an I-/I 3 - electrolyte solution, graphene or pentacene for photovoltaic application. The fabricated photovoltaic devices were characterized by using morphological characterization and electrical measurements. Optical images show a homogeneous, sparse and porous surface, showing greenish-yellow coloured non regular agglomerated grains with an average size of 30 nm. The overall power conversion efficiency of undoped samples were 0.304 % and 0.253 % for graphene and pentacene photovoltaic devices respectively and this is higher than a I- /I3 - photovoltaic device (0.014 %).