Numerical investigation of the effect of interface conditions in HTM-free and printable WOx based perovskite solar cells - Foton - Fonctions Optiques pour les Technologies de l'informatiON Accéder directement au contenu
Poster De Conférence Année : 2017

Numerical investigation of the effect of interface conditions in HTM-free and printable WOx based perovskite solar cells

Claudine Katan

Résumé

One of the remaining issues, impeding the commercialization of the low cost and high efficiency perovskite solar cells (PSCs) is whether the halide perovskite materials have sufficient stability. Two main instabilities are the light-induced degradation1 and the scandependent performance, namely the hysteresis effect2 . Following the observation and the atomic computation, the interfaces of perovskite/WOx and perovskite/Au are numerically investigated by reproducing the experimental current-voltage (J-V) and capacitance-voltage (CV) characteristics3 . As a result, the build in potential (Vbi) variation, open circuit voltage (VOC) loss and hysteresis effects are explained. The effect of mobile ions is additionally taken into account in the drift-diffusion model for the realistic modelling, including the ionic current, the dopant-like behavior and the polarization effect between ions and the other charges. The interaction between interface traps and mobile ions is assumed to lead the anomalous hysteresis. Furthermore, a new approach is proposed to the modelling of Kelvin Probe Force Microscopy (KPFM) of hetero-structures in dark and under illumination, aiming at estimating the surface states on the top of electron transport materials and understanding the carrier operation inside the cells.
Fichier principal
Vignette du fichier
Poster_JNPV2017_vf.pdf (1.35 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01660167 , version 1 (27-09-2022)

Identifiants

  • HAL Id : hal-01660167 , version 1

Citer

Yong Huang, Sigalit Aharon, Alexandre Gheno, Sylvain Vedraine, Laurent Pedesseau, et al.. Numerical investigation of the effect of interface conditions in HTM-free and printable WOx based perovskite solar cells. 7è Journées Nationales du PhotoVoltaïque (JNPV 2017), Dec 2017, Dourdan, France. . ⟨hal-01660167⟩
610 Consultations
45 Téléchargements

Partager

Gmail Facebook X LinkedIn More