Skip to Main content Skip to Navigation
Journal articles

Impact of Environmental Stresses Onto Transport Properties of Hybrid Perovskite Investigated by Steady State Photocarrier Grating and Steady State Photocurrent Techniques

Abstract : In this study, the transport properties of high quality double and triple cation perovskite are explored under different environmental stresses by Steady State Photocurrent (SSPC) and Steady State Photocarrier Grating (SSPG) measurements. SSPG allows a direct measurement of the ambipolar diffusion length that is significantly higher for the cesium containing perovskite (1.4 micron compared to 0.57 micron for a double cation compound). This positive effect is shown to be reversibly annihilated as the samples are put under vacuum, and to be accelerated with the increase of the temperature. The degradation of the material properties appears together with the activation of a defect trap level and a rise of the doping level in the material. This behavior is discussed considering the interaction between the iodine vacancies contained in the perovskite and oxygen which is known to lead to trap passivation.
Document type :
Journal articles
Complete list of metadatas

https://hal-centralesupelec.archives-ouvertes.fr/hal-01942541
Contributor : Christophe Longeaud <>
Submitted on : Monday, December 3, 2018 - 11:56:21 AM
Last modification on : Thursday, September 17, 2020 - 12:26:02 PM

Identifiers

Citation

Christophe Longeaud, Javier Ramos, Amelle Rebai, Jean Rousset. Impact of Environmental Stresses Onto Transport Properties of Hybrid Perovskite Investigated by Steady State Photocarrier Grating and Steady State Photocurrent Techniques. Solar RRL, Wiley, 2018, ⟨10.1002/solr.201800192⟩. ⟨hal-01942541⟩

Share

Metrics

Record views

81