Unravelling the origin of the photocarrier dynamics of fullerene-derivative passivation of SnO<sub>2</sub> electron transporters in perovskite solar cells

Huang, Sibo; Wang, Ying-Chiao; Ke, Wei Chen; Kao, Yu Ting; She, Nian Zu; Li, Jia Xing; Luo, Chih-Wei; Yabushita, Atsushi; Wang, Di Yan; Chang, Yuan Jay; Tsukagoshi, Kazuhito; Chen, Chun-Wei

doi:10.1039/d0ta08752a

Cited by 35 publications

(31 citation statements)

References 47 publications

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“…In the monolayer of SnO 2 , additive is employed to achieve this aim. Same as the TiO 2 , the additive using in SnO 2 includes metal ion (e.g., Li + , 422 Mg 2+ , 423,424 Eu 3+ , 397 Y 3+ , 425 Zr 4+ , 426 Nb 5+ 427,428 ), function material (e.g., TiCl 4 , 429 KCl, 430 RbF, 393 Eu‐WO x , 431 MXene, 394,432,433 NH 4 F, 403 CdS, 434 phosphoric acid, 435 , 435 g‐C 3 N 4 , 436 EDTA, 437 ionic liquid, 406 SPF, 438 PEG, 439 graphene, 440 carbon, 441,442 fullerene and its derivatives, 443–446 ) and plasma gas (e.g., N 2 , 447 Ar and O 2 448 ). For example, Park et al 422 demonstrated that Li + can enhance the conductivity and induce a downward shift of HOMO and LUMO of SnO 2 , which facilitated injection and transfer of electrons from t MAPbI 3 perovskite to SnO 2 .…”

Section: Carrier Engineeringmentioning

confidence: 99%

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Chen

et al. 2022

InfoMat

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In recent years, halide perovskite solar cells (HPSCs) have attracted a great attention due to their superior photoelectric performance and the low‐cost of processing their quality films. In order to commercialize HPSCs, the researchers are focusing on developing high‐performance HPSCs. Many strategies have been reported to increase the power conversion efficiency and the long‐term stability of HPSCs over the past decade. Herein, we review the latest efforts and the chemical‐physical principles for preparing high‐efficiency and long‐term stability HPSCs in particular, concentrating on the perovskite materials, technologies for perovskite films, charge transport materials and ferroelectric effect to reduce the carrier loss, and photon management via plasmonic and upconversion effects. Finally, the key issues for future researches of HPSCs are also discussed with regard to the requirements in practical application.

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Section: Carrier Engineeringmentioning

confidence: 99%

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Chen

et al. 2022

InfoMat

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“…New studies in this scope are insightful and welcome. The study of alternative electron collecting materials such as SnO 2 and fullerene‐passivated SnO 2 [ 148,154–158 ] or even the organic [6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) [ 159–162 ] are other possible ways in which further research can be carried out. They already presented the first results for PQDs [ 51 ] and are inevitable tendencies for research.…”

Section: Pqd Solar Cell Architecturesmentioning

confidence: 99%

Perovskite Quantum Dot Solar Cells: An Overview of the Current Advances and Future Perspectives

et al. 2021

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Perovskite quantum dots (PQDs) have revolutionized the field of perovskite solar cells in recent years. Using PQDs improves the operational stability of these devices, which is one of their main drawbacks for applications. This factor has motivated an intense search for new advances, from a fundamental aspect to improved performance in devices. Therefore, the developments obtained for PQD solar cells are discussed, presenting the challenges already overcome and the upcoming tendencies for research. Thus, the fundamental aspects of halide perovskite structures are first introduced. The advantages of their preparation as quantum dots are presented as well. The advances for post‐treatments (purification, passivation, and ligand exchange) are then discussed. Next, an in‐depth discussion of the PQD solar cell architectures is made, highlighting both the obsolete configurations and upcoming tendencies. A more specific view of the PQD compositions is then made, including lead‐free compositions and strategies for ionic substitution. Links of the photovoltaic performance are constructed with the devices’ architecture, post‐treatments, and perovskite composition, providing a wide‐ranging overview of these parameters for the devices’ efficiencies. Finally, the authors’ point of view about the future of PQD solar cell technology is presented, showing the main drawbacks, advantages, and opportunities for research.

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“…The spin-coated fullerene derivative film is widely used as an electron transport layer in perovskite solar cells. − Polar fullerene derivatives, such as [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM) and C 60 pyrrolidine tris-acid (CPTA), can be used for interface engineering in perovskite solar cells. ,, Because fullerene derivatives electrically couple with oxide surfaces to effectively modify the work function, they dramatically improved the efficiency of perovskite solar cells.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we describe our use of a CPTA spin-coating process and an EBL preset to realize a two-terminal nanoscale switching device. After the spin coating, the CPTA was vertically anchored to the bottom oxide substrate by their carboxylic acid groups, ,, to ensure that there were no horizontal connections between CPTA molecules. Thus, the initial CPTA film exhibited a highly resistivity in-plane conduction measurement.…”

Section: Introductionmentioning

confidence: 99%

Fullerene Nanostructure-Coated Channels Activated by Electron Beam Lithography for Resistance Switching

Takeuchi

Umeta

Suga

et al. 2022

ACS Appl. Nano Mater.

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Fullerenes, which are spherical molecules composed entirely of carbon, have attractive homogeneous shapes at subnanometer sizes and inherent physical and chemical properties that make them promising for use in nanoelectronics. In addition, fullerenes can be chemically functionalized with substitutional elements, which have been incorporated into devices to substantially improve their transport properties. The chemically functionalized fullerenes are known as fullerene derivatives. Using the chemically functionalized fullerene pyrrolidine tris-acid (CPTA), we developed a new device fabrication scheme for a fullerene resistance-switching element generated by the polymerization and depolymerization of C 60 polymer strings. To take advantage of the CPTA property, whereby it forms strong interactions with the surface of a substrate by strengthening the chemical bonds, a uniform thin CPTA film was spin-coated, and conductive fullerene polymerization was subsequently stimulated by a designed scan with an electron beam lithography (EBL) preset. The polymerized channel showed negative differential resistance in its current−voltage characteristics and performed twostate resistance switching, indicating that the polymerization and depolymerization of the C 60 polymer strings were alternatively controlled according to the external voltage input. EBL fabrication with solution-based nanomaterial coating has the potential of a bottom-up scheme for nanoelectronics, allowing for the design of intrinsic material properties.

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Unravelling the origin of the photocarrier dynamics of fullerene-derivative passivation of SnO₂ electron transporters in perovskite solar cells

Abstract: Fullerene-passivated SnO2 electron transport layers (ETLs) offer the route for continued boost in power conversion efficiencies (PCEs) of perovskite solar cells (PSCs). However, the detailed understanding on the photocarrier dynamics...

Cited by 35 publications

References 47 publications

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Perovskite Quantum Dot Solar Cells: An Overview of the Current Advances and Future Perspectives

Fullerene Nanostructure-Coated Channels Activated by Electron Beam Lithography for Resistance Switching

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Unravelling the origin of the photocarrier dynamics of fullerene-derivative passivation of SnO2 electron transporters in perovskite solar cells

Abstract: Fullerene-passivated SnO2 electron transport layers (ETLs) offer the route for continued boost in power conversion efficiencies (PCEs) of perovskite solar cells (PSCs). However, the detailed understanding on the photocarrier dynamics...

Cited by 35 publications

References 47 publications

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Perovskite Quantum Dot Solar Cells: An Overview of the Current Advances and Future Perspectives

Fullerene Nanostructure-Coated Channels Activated by Electron Beam Lithography for Resistance Switching

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Unravelling the origin of the photocarrier dynamics of fullerene-derivative passivation of SnO₂ electron transporters in perovskite solar cells