Effect of PbI2 passivation to grain boundary of perovskite film with cation and anion co-mixing on performance of photovoltaic devices

Zou, Xiaoping; Cheng, Jin; Bai, Xiaojun; Chen, Dan; Yao, Yujun; Chang, Chuangchuang; Yu, Xinge; Zhou, Zixiao; Wang, Junqi; Liu, Baoyu

doi:10.1016/j.matlet.2020.127979

Cited by 8 publications

(9 citation statements)

References 8 publications

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“…[48] The intense 2θ peaks around 14.1 , 20 , 23. The XRD pattern revealed no PbI 2 peaks at 12.4 , [49,50] indicating fabrication of pure perovskite black phase and evaporation of water content during IPL annealing of SnO 2 .…”

Section: Resultsmentioning

confidence: 97%

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

et al. 2021

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The rapid chemistry and processing development along with exploring underlying fundamentals [1,2] have increased the performance of perovskite solar cells (PSCs) to over 25%, [3] making them a potential candidate for nextgeneration photovoltaics (PVs). PSCs consist of a photoabsorber film sandwiched between n-type and p-type charge transport films, [4] all shown to be solution processable and thus, fabricable using scalable depositions such as slot die, [5,6] gravure, [7] spray, [8] and inkjet-printing systems [9,10] through automated manufacturing. The deposition of thin films from solutions has been shown for the SnO 2 electron transport layer (ETL), perovskite, and carbon electrodes. After deposition, these layers should undergo drying and possibly an annealing step; thus, the production of PSCs is suitable for automated manufacturing.To realize automated fabrication of PSCs with required control of the printing and IPL annealing processes, we integrated these processes into the "NeXus," a custom-designed system with robotics and motion control capabilities. The NeXus is a novel instrument for flexible multiscale manufacturing, implementing precision robotic assembly, additive manufacturing, and multiscale integration of miniature devices and systems. In addition to a commercial IPL annealing subsystem from Xenon Corporation, USA, the NeXus includes a deposition subsystem, a Pico Pulse Inkjet printhead from Nordson Corporation, USA. Samples move between these subsystems with the help of a custom 6 degree-of-freedom (DOF) robotic positioner, allowing not only fast transport of the samples between the processing tools, but also precise motion control during printing. The NeXus also integrates other manufacturing techniques, such as a dual-head fused deposition modeling (FDM) 3D printing, aerosol jetting, and microassembly. [11][12][13] Furthermore, a novel bonding process has been developed utilizing an ultrasonic vibration technique to embed metal wire in a polymer. [14,15] Slot-die coating is the most studied method for versatile and low-cost scalable deposition of thin-film PSCs, [6,16,17] whereas inkjet printing allows for the deposition of extremely high-resolution features with desired patterns. Inkjet-printing systems utilize thermal or piezoelectric drop-on-demand (DOD) technologies, where the latter produces more uniform size droplets and enables better distribution as a result of rapid

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Section: Resultsmentioning

confidence: 97%

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

et al. 2021

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“…We believe that Ba doping passivates the defect states associated with these grain boundaries, so that the effective carrier lifetime and thereby the diffusion length are increased. Similar passivation strategies based on the doping of grain boundaries have often been employed to maximize the performance of photovoltaic technologies based on perovskites, [33][34][35] Cu(In, Ga)Se 2 [36][37][38][39][40] (CIGS) and other materials.…”

Section: Discussionmentioning

confidence: 99%

Probing fundamental losses in nanostructured Ta₃N₅ photoanodes: design principles for efficient water oxidation

Nandal

Pihosh

Higashi

et al. 2021

Energy Environ. Sci.

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“…PbX 2 (X = Cl, Br, I) can act as a passivating agent on the grain boundaries of lead halide perovskites, which allowed for an increase in the V OC of perovskite solar cells (PSCs). − Currently, the formation of PbX 2 in a MHP layer can be achieved by annealing treatments, yet these can induce thermal decomposition . Alternatively, the addition of an excess of PbX 2 to the composition of the precursors has also been explored. , However, these techniques do not allow the selective location of PbX 2 on the MHP surface, which is crucial for the process, as the lead salts should concentrate on the MHP crystal boundaries rather than in their volume. A more advanced technique recently proposed uses moisture condensation control at low temperatures to distribute PbI 2 at the upper surface grain boundaries of MHP films.…”

Section: Introductionmentioning

confidence: 99%

“…39 Alternatively, the addition of an excess of PbX 2 to the composition of the precursors has also been explored. 40,41 However, these techniques do not allow the selective location of PbX 2 on the MHP surface, which is crucial for the process, as the lead salts should concentrate on the MHP crystal boundaries rather than in their volume. A more advanced technique recently proposed 42 uses moisture condensation control at low temperatures to distribute PbI 2 at the upper surface grain boundaries of MHP films.…”

Section: ■ Introductionmentioning

confidence: 99%

Boosting Photoluminescence in MAPbBr₃ Single Crystals through Laser-Based Surface Modification

Fernandez-Guillen,

Chirvony,

Kreĉmarová

et al. 2023

ACS Photonics

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Effect of PbI2 passivation to grain boundary of perovskite film with cation and anion co-mixing on performance of photovoltaic devices

Cited by 8 publications

References 8 publications

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

Probing fundamental losses in nanostructured Ta₃N₅ photoanodes: design principles for efficient water oxidation

Boosting Photoluminescence in MAPbBr₃ Single Crystals through Laser-Based Surface Modification

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Effect of PbI2 passivation to grain boundary of perovskite film with cation and anion co-mixing on performance of photovoltaic devices

Cited by 8 publications

References 8 publications

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

Automated Fabrication of Perovskite Photovoltaics Using Inkjet Printing and Intense Pulse Light Annealing

Probing fundamental losses in nanostructured Ta3N5 photoanodes: design principles for efficient water oxidation

Boosting Photoluminescence in MAPbBr3 Single Crystals through Laser-Based Surface Modification

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Probing fundamental losses in nanostructured Ta₃N₅ photoanodes: design principles for efficient water oxidation

Boosting Photoluminescence in MAPbBr₃ Single Crystals through Laser-Based Surface Modification