@article{8a6ebb2f2a6b4899895cf774d61dfef9,
title = "Unveiling the nanoscale photocurrent behavior in perovskite films on photonic-structured TiO2",
abstract = "Understanding charge carrier dynamics at the nanoscale is pivotal for advancing hybrid perovskite materials for optoelectronic applications. In this study, we investigate the nanoscale photocurrent behavior of perovskite films deposited on photonic-structured TiO2, contrasting their performance with conventional mesoporous TiO2 (mp TiO2). By leveraging nanoscale photocurrent mapping, we reveal that photonic-structured TiO2 fosters stable and sustained photocurrent generation, attributed to enhanced charge retention and suppressed recombination. In contrast, perovskite films on mp TiO2 exhibit photocurrent degradation over time due to charge trapping and instability. These findings underscore the transformative role of photonic-structured TiO2 in modulating charge carrier dynamics, advancing our understanding of perovskite material behavior. Our findings establish a new framework for correlating nanoscale photocurrent patterns with structural engineering in perovskite devices, paving the way for future innovations in material design.",
author = "Jenny Boane and Shrabani Panigrahi and Tom{\'a}s Calmeiro and Edgar Coimbra and Santos, \{Ivan M.\} and Elvira Fortunato and Rodrigo Martins and Mendes, \{Manuel J.\} and Hugo {\'A}guas",
note = "info:eu-repo/grantAgreement/FCT/Concurso para Atribui{\c c}{\~a}o do Estatuto e Financiamento de Laborat{\'o}rios Associados (LA)/LA\%2FP\%2F0037\%2F2020/PT\# info:eu-repo/grantAgreement/FCT/Concurso de avalia{\c c}{\~a}o no {\^a}mbito do Programa Plurianual de Financiamento de Unidades de I\&D (2017\%2F2018) - Financiamento Program{\'a}tico/UIDP\%2F50025\%2F2020/PT\# info:eu-repo/grantAgreement/FCT/Concurso de avalia{\c c}{\~a}o no {\^a}mbito do Programa Plurianual de Financiamento de Unidades de I\&D (2017\%2F2018) - Financiamento Base/UIDB\%2F50025\%2F2020/PT\# info:eu-repo/grantAgreement/FCT/Concurso para Financiamento de Projetos de Investiga{\c c}{\~a}o Cient{\'i}fica e Desenvolvimento Tecnol{\'o}gico em Todos os Dom{\'i}nios Cient{\'i}ficos - 2020/PTDC\%2FCTM-REF\%2F1008\%2F2020/PT\# info:eu-repo/grantAgreement/FCT/Concurso de Projetos de I\&D em Todos os Dom{\'i}nios Cient{\'i}ficos - 2022/2022.01610.PTDC/PT\# info:eu-repo/grantAgreement/EC/H2020/787410/EU\# info:eu-repo/grantAgreement/FCT//2022.14557.BD/PT\# info:eu-repo/grantAgreement/FCT//2023.03929.BD/PT\# Funding Information: This work received funding from FCT (Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia, I. P.) under the projects LA/P/0037/2020, UIDP/50025/ 2020 and UIDB/50025/2020 of the Associate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication—i3N, and by the projects FlexSolar (PTDC/CTM-REF/1008/2020), X-STREAM (Horizon EU, ERC-2023-CoG, No 101124803) and SpaceFlex (2022.01610.PTDC, DOI: https://doi.org/10.54499/ 2022.01610.PTDC). The work was also supported by the project M-ECO2– Industrial cluster for advanced biofuel production, Ref. C644930471-00000041, co-financed by PRR– Recovery and Resilience Plan of the European Union (Next Generation EU). The authors also acknowledge funding from the European Union via the projects X-STREAM (Horizon EU, ERC-2023-CoG, No. 101124803) and JUMP INTO SPACE (HORIZON-EIC-2023PATHFINDERCHALLENGES-01, No. 101162377). Additional funding was provided by the European Community{\textquoteright}s H2020 program through the projects DIGISMART (grant agreement no. 787410, ERC-2018-AdG). Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. This research work is also funded by FCT-MCTES through the grant BD/14557/2022. I. M. Santos and E. Coimbra also acknowledge the fundingbyFCT, I. P. throughthegrant 2023.03929.BD (DOI: https://doi.org/10.54499/2023.03929.BD). Publisher Copyright: {\textcopyright} 2025 The Royal Society of Chemistry.",
year = "2025",
month = sep,
day = "22",
doi = "10.1039/d5nj02813b",
language = "English",
volume = "49",
pages = "16226--16234",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "RSC - Royal Society of Chemistry",
number = "37",
}