Facilitating the formation of SnO2 film via HfO2-modified FTO electrode for efficient perovskite solar cells
نویسندگان
چکیده
Fabricating a dense and crystalline SnO2 film has been an important step for efficient SnO2-based perovskite solar cells (PSCs). Herein, wide bandgap material, HfO2, was deposited on the surface of FTO to facilitate formation film. It found that HfO2 modification could significantly improve crystallization upper passivate trap states within layer. Moreover, high conduction band level can block backflow electrons suppress nonradiative recombination carriers. Eventually, best PSC with interlayer presented power conversion efficiency (PCE) 21.13% VOC 1.13 V, which are higher than those reference device. This study provides meaningful strategy ETL optimization further increase PSCs.
منابع مشابه
Perovskite solar cells: film formation and properties
Perovskite solar cells have received considerable attention in recent years as a promisingmaterial capable of developing high performance photovoltaic devices at a low cost. Their high absorption coefficient, tunable band gap, low temperature processing and abundant elemental constituents provide numerous advantages overmost thin film absorbermaterials. In this review, we discuss the current st...
متن کاملMgO Nanoparticle Modified Anode for Highly Efficient SnO2‐Based Planar Perovskite Solar Cells
Reducing the energy loss and retarding the carrier recombination at the interface are crucial to improve the performance of the perovskite solar cell (PSCs). However, little is known about the recombination mechanism at the interface of anode and SnO2 electron transfer layer (ETL). In this work, an ultrathin wide bandgap dielectric MgO nanolayer is incorporated between SnO2:F (FTO) electrode an...
متن کاملOrganic solvent vapor sensitive methylammonium lead trihalide film formation for efficient hybrid perovskite solar cells
The anisotropic electronic properties of the perovskite crystals originating from their non-cubic crystal structures can potentially give rise to the grain orientation correlated photovoltaic device performance. Here we report that an organic solvent vapor atmosphere introduced during the spin-coating and formation of perovskite films changes the orientation and size of perovskite grains. It wa...
متن کاملfacilitating lexical access for the fluent production of speech
the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...
15 صفحه اولElectrodeposition of SnO2 on FTO and its Application in Planar Heterojunction Perovskite Solar Cells as an Electron Transport Layer
We report the performance of perovskite solar cells (PSCs) with an electron transport layer (ETL) consisting of a SnO2 thin film obtained by electrochemical deposition. The surface morphology and thickness of the electrodeposited SnO2 films were closely related to electrochemical process conditions, i.e., the applied voltage, bath temperature, and deposition time. We investigated the performanc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2023
ISSN: ['1520-8842', '0003-6951', '1077-3118']
DOI: https://doi.org/10.1063/5.0151543