A5046890365- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- X-ray Diffraction in Crystallography
- Chalcogenide Semiconductor Thin Films
- Crystallization and Solubility Studies
- Carbon and Quantum Dots Applications
- Luminescence and Fluorescent Materials
- Fullerene Chemistry and Applications
- Organic Light-Emitting Diodes Research
- Nanocluster Synthesis and Applications
- Solid-state spectroscopy and crystallography
- Historical and Religious Studies of Rome
- Molecular Junctions and Nanostructures
- Organometallic Compounds Synthesis and Characterization
- Advanced battery technologies research
- Silicone and Siloxane Chemistry
- Crystallography and molecular interactions
- Advanced Battery Materials and Technologies
- Thermal Expansion and Ionic Conductivity
- Electrochemical sensors and biosensors
- Renaissance and Early Modern Studies
- Italian Fascism and Post-war Society
- Advanced biosensing and bioanalysis techniques
CIC biomaGUNE
2023-2024
University of the Basque Country
2015-2024
Polymat
2015-2024
University of Stuttgart
2023
Adolphe Merkle Institute
2023
ARC Centre of Excellence in Advanced Molecular Imaging
2023
Vrije Universiteit Amsterdam
2023
UNSW Sydney
2023
University of Oxford
2023
Faculty (United Kingdom)
2018-2020
This article highlights the most interesting discoveries concerning fullerenes in photovoltaics, which have contributed to advances this field.
The mechanism behind the magic: of light conversion in perovskite solar cells has been a matter debate since first highly efficient devices were published. A series articles indicate that these should be seen as "silicon-like" photovoltaic rather than excitonic cells.
The wide field of polymer chemistry has recently encountered the unique, promising perovskite solar cells (PSCs). Thanks to their chemical versatility, possible applications organic polymers within devices have been highly diversified as charge-transporting materials, either hole or electrons, additives, being these blended into designed layer used a buffer layer. use different additives demonstrated be beneficial for device performance and stability, thanks an improved morphology thin...
Formamidinium lead triiodide (FAPbI3) is the leading candidate for single-junction metal-halide perovskite photovoltaics, despite metastability of this phase. To enhance its ambient-phase stability and produce world-record photovoltaic efficiencies, methylenediammonium dichloride (MDACl2) has been used as an additive in FAPbI3. MDA2+ reported incorporated into lattice alongside Cl-. However, precise function role remain uncertain. Here, we grow FAPbI3 single crystals from a solution...
Abstract A variety of novel chemically modified fullerenes, showing different electron‐accepting capabilities, has been synthesized and used to prepare electron transport layer (ETL)‐free solar cells based on perovskite/fullerene blends. In particular, isoxazolino[60] fullerenes are proven be a good candidate for processing blend films with CH 3 NH PbI obtaining enhanced power conversion efficiency (PCE) ETL‐free perovskite (PSCs), improving the state‐of‐the‐art PCE (i.e., 14.3 %) this...
Abstract A series of [60]fullerenes covalently functionalized with the polymer poly(ethylene glycol) is presented. These new [60]fullerene‐based materials have been incorporated as additives in CH 3 NH PbI (MAPbI ), most common organic–inorganic perovskite used solar cells. The extensive photovoltaic study performed by using these shows several beneficial effects on performance cells, including a reduction hysteresis and an increased stability against moisture, whereby cells retain up to 97...
Abstract So far, single-junction flexible PSCs have been lacking in efficiency compared to rigid PSCs. Recently, > 23% reported. We therefore focus on understanding the differences between and substrates. One often neglected parameter is different surface roughness which directly affects perovskite film formation. Therefore, we adjust layer thickness of SnO 2 layers. Furthermore, introduce a PMMA hole transporting material (HTM), spiro-MeOTAD, mitigate shunting pathways. In addition,...
Abstract [70]Fullerene is presented as an efficient alternative electron‐selective contact (ESC) for regular‐architecture perovskite solar cells (PSCs). A smart and simple, well‐described solution processing protocol the preparation of [70]‐ [60]fullerene‐based cells, namely fullerene saturation approach (FSA), allowed us to obtain similar power conversion efficiencies both materials (i.e., 10.4 11.4 % devices, respectively). Importantly, despite low electron mobility significant...
A series of novel polymers (P1–P6) derived from the combination different units (including thiophene, triarylamine, and spirobifluorene) were successfully synthesized, completely characterized, used as hole-transporting materials (HTMs) for perovskite solar cells (PSCs). Solar with some these HTMs showed very good performances almost 13% (12.75% P4 12.38% P6) even without additives, devices based on new show relatively improved stability against temperature compared to those PTAA. The...
During the past few years, field of photovoltaics has been revolutioned through use perovskites as light‐harvesting materials. This led to studying a whole range organic structures fulfilling energetical requirements within typical architecture perovskite‐based solar cell. In this context, carbon nanoforms, with their interesting and versatile properties, are studied charge transporting materials, electrodes or additives perovskite material. The latest findings concerning exciting...
Abstract Here we report for the first time an efficient fullerene‐based compound, FU7 , able to act as hole‐transporting material (HTM) and electron blocking contact. It has been applied on perovskite solar cells (PSCs), obtaining 0.81 times efficiency of PSCs with standard HTM, spiro‐OMeTAD, additional advantage that this performance is reached without any additive introduced in HTM layer. Moreover, a proof concept, have described which both selective contacts are fullerene derivatives,...
Carbon nanodots, a family of carbon-based nanomaterials, have been synthesized through different methods from various resources, affecting the properties resulting product and their application. Herein, carbon nanodots (CNDs) were with green simple hydrothermal method sage leaves at 200 °C for 6 hours. The obtained CNDs are well dispersed in water negative surface charge (ζ-potential = -11 mV) an average particle size 3.6 nm. showed concentration-dependent anticancer activity toward liver...
Identification of perovskite–fullerene interactions explained the beneficial effects fullerene derivatisation for perovskite:fullerene films. Understanding these systems led to structurally optimised improved perovskite solar cells.
Abstract Multi‐branched molecules have recently demonstrated interesting behaviour as charge‐transporting materials within the fields of perovskite solar cells (PSCs). For this reason, extended triarylamine dendrons been grafted onto a pillar[5]arene core to generate dendrimer‐like compounds, which used hole‐transporting (HTMs) for PSCs. The performances containing these novel compounds extensively investigated. Interestingly, positive dendritic effect has evidenced hole transporting...
The incorporation of p-type functionalized carbon nanohorns (CNHs) in perovskite solar cells (PSCs) and their comparison with single- double-walled nanotubes (SWCNTs DWCNTs) are reported this study for the first time. These nanomaterial (CNM) derivatives were successfully synthesized by [2 + 1] cycloaddition reaction nitrenes formed from triphenylamine (TPA) 9-phenyl carbazole (Cz)-based azides, yielding CNHs-TPA, CNHs-Cz, SWCNTs-Cz, SWCNTs-TPA, DWCNTs-TPA, DWCNTs-Cz. six novel CNMs...
A cobalt-catalyzed cyclotrimerization of bis(aryl)alkyne is used as an innovative tool to obtain hole-transport materials (HTMs). The novel HTM containing six units oligotriarylamine (HAB1), characterized by UV–vis, cyclic voltammetry, DFT, and thermogravimetric analysis, confirms its suitability efficient in PSCs. PCE 17.5% was obtained HAB1-containing PSCs, a performance comparable that with spiro-OMeTAD slightly better thermal stability.
Naphthalene‐diimide (NDI)‐based molecules have shown an interesting behaviour within the field of perovskite solar cells, thanks to their promising application as electron transporting materials. In this paper, three novel NDI‐containing are synthesized and fully characterized, more specifically two polymers analogue small molecule. Each one NDI units contains amine, either tertiary or quaternary, which is a moiety known for improving conductivity. The newly compounds suitable use n‐type...
n-Type doping of perovskite solar cells is a very promising strategy to improve performance and stability these devices.
The role of graphitic and amorphous nitrogen-doped carbon dots (N-CDs) as additives for perovskite solar cells (PSCs) is investigated. A detailed study N-CDs: (PVSK) blends through X-ray diffraction, nuclear magnetic resonance, field emission scanning electron microscopy, UV-vis, photoluminescence spectroscopy reveals the existence interactions between N-CDs PVSK. or nature these nanoforms, well CDs PVSK, clearly determines photovoltaic outcome PSCs. Thus, a small amount (g-N-CDs) leads to...
Wie funktioniert der Wunderstoff? Der Mechanismus Umwandlung von Sonnenlicht in Elektrizität Perowskit-Solarzellen (PSCs) wurde seit den ersten Veröffentlichungen kontrovers diskutiert. Nach einer Reihe Studien zeigt sich nun, dass PSCs als „siliciumartige“ Photovoltaikelemente betrachtet werden sollten, nicht exzitonische Solarzellen.
Herein, we describe the synthesis of a hole transporting material based on partially planarised quart-<italic>p</italic>-phenylene core incorporating tetraketal and diphenylamine substituents that show optimal energy levels solubility for perovskite solar cell applications.
Abstract Invited for this month′s cover is the group of Juan‐Luis Delgado at University Basque Country. The image represents current competing scenario between fullerenes and TiO 2 as electron‐transport materials perovskite solar cells. Full Paper itself available 10.1002/cssc.201600051 .