FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4231907515> ?p ?o ?g. }

• W4231907515 endingPage "626" @default.
• W4231907515 startingPage "626" @default.
• W4231907515 abstract "Lead halide perovskite solar cells (PSCs) are a promising alternative energy source that has received a considerable attention in recent year. Their certified power conversion efficiencies (PCEs) now exceed 20% and only a few challenges, such as long-term stability and cost of fabrication, remain before commercialization. PSCs in general have a structure in which a photo-active material and two charge-selective materials are sandwiched by a transparent bottom electrode and a metal top electrode. Typically, the metal electrodes are thermally evaporated in vacuum, which incur substantial increase in fabrication costs and material costs. Further, using these metal electrodes induces the ion-migration, which is detrimental to the long-term stability of the perovskite layer. Thus, it is crucial that we find an alternative to the metal electrodes to bring PSCs to the next level. Having high conductivity and facile processability, aerosol synthesized single-walled carbon nanotubes (CNTs) have showcased promising potential as the top electrode in PSCs. Using CNTs as the top electrode drastically improves the PSC stability by both removing the ion migration and functioning as an effective moisture barrier. Further, CNTs are mechanically and chemically robust which contribute to the durability of the PSCs. Moreover, the fact that CNTs are made up of earth-abundant carbon atoms only and the aerosol-synthesized CNT films are direct-transferable means the low-cost production. The only shortcoming of employing the CNTs as the top electrode in PSCs, this far, has been the limited PCE. This is because CNTs do not reflect light unlike metals and doping the CNT top electrodes without damaging the layers underneath is extremely difficult. Recently, we reported a vapor-assisted ex-situ doping method using trifluoromethanesulfonic acid (TFMS), to dope the CNT top electrode in PSCs with no damage to the materials underneath and reported the record-high PCE of 17.56%. However, the vapor doping was too weak as a long exposure to the TFMS vapor resulted in a reaction between TFMS and 4-tert-butylpyridine ( t -BP). Also, it was difficult to control the exposure time exactly everytime. Therefore, it is necessary to find a more controlled and effective doping technology. The key here is to develop a new doping method that leads to the minimal interaction with t -BP while demonstrating the maximum doping effect. Herein, we report CNT-laminated PSCs in which optimized concentration of TFMS dopant in an apolar solvent was applied by a drop-casting method to increase the conductivity of the CNTs while avoiding the reaction with t -BP and the perovskite layer underneath. The choice of apolar solvent was chlorobenzene which exhibited superior doping effect and stability compared with other solvents. Furthermore, higher concentration of spiro-MeOTAD was used in the CNT-laminated PSCs by exploiting the high mobility of the porous CNT network. The combination of those two led to a PCE of 18.5%, which is comparable to 18.3% of the metal electrode-based PSCs. The CNT-laminated devices demonstrated a stability time of more than 1000 operating hours, which is by far greater than that of the reference devices. Figure 1" @default.
• W4231907515 created "2022-05-12" @default.
• W4231907515 creator A5004309474 @default.
• W4231907515 creator A5021174253 @default.
• W4231907515 creator A5040691545 @default.
• W4231907515 creator A5052789010 @default.
• W4231907515 creator A5090592819 @default.
• W4231907515 date "2019-05-01" @default.
• W4231907515 modified "2023-10-14" @default.
• W4231907515 title "Carbon Nanotubes to Outperform Metal Using Dopant Engineering and Hole-Transporting Layer Control in Perovskite Solar Cells" @default.
• W4231907515 doi "https://doi.org/10.1149/ma2019-01/7/626" @default.
• W4231907515 hasPublicationYear "2019" @default.
• W4231907515 type Work @default.
• W4231907515 citedByCount "1" @default.
• W4231907515 countsByYear W42319075152021 @default.
• W4231907515 crossrefType "journal-article" @default.
• W4231907515 hasAuthorship W4231907515A5004309474 @default.
• W4231907515 hasAuthorship W4231907515A5021174253 @default.
• W4231907515 hasAuthorship W4231907515A5040691545 @default.
• W4231907515 hasAuthorship W4231907515A5052789010 @default.
• W4231907515 hasAuthorship W4231907515A5090592819 @default.
• W4231907515 hasConcept C104779481 @default.
• W4231907515 hasConcept C127413603 @default.
• W4231907515 hasConcept C136525101 @default.
• W4231907515 hasConcept C140205800 @default.
• W4231907515 hasConcept C142724271 @default.
• W4231907515 hasConcept C147789679 @default.
• W4231907515 hasConcept C155011858 @default.
• W4231907515 hasConcept C159985019 @default.
• W4231907515 hasConcept C171250308 @default.
• W4231907515 hasConcept C17525397 @default.
• W4231907515 hasConcept C185592680 @default.
• W4231907515 hasConcept C18903297 @default.
• W4231907515 hasConcept C191952053 @default.
• W4231907515 hasConcept C192562407 @default.
• W4231907515 hasConcept C204787440 @default.
• W4231907515 hasConcept C206991015 @default.
• W4231907515 hasConcept C2779227376 @default.
• W4231907515 hasConcept C41291067 @default.
• W4231907515 hasConcept C42360764 @default.
• W4231907515 hasConcept C49040817 @default.
• W4231907515 hasConcept C513720949 @default.
• W4231907515 hasConcept C57863236 @default.
• W4231907515 hasConcept C71924100 @default.
• W4231907515 hasConcept C86803240 @default.
• W4231907515 hasConceptScore W4231907515C104779481 @default.
• W4231907515 hasConceptScore W4231907515C127413603 @default.
• W4231907515 hasConceptScore W4231907515C136525101 @default.
• W4231907515 hasConceptScore W4231907515C140205800 @default.
• W4231907515 hasConceptScore W4231907515C142724271 @default.
• W4231907515 hasConceptScore W4231907515C147789679 @default.
• W4231907515 hasConceptScore W4231907515C155011858 @default.
• W4231907515 hasConceptScore W4231907515C159985019 @default.
• W4231907515 hasConceptScore W4231907515C171250308 @default.
• W4231907515 hasConceptScore W4231907515C17525397 @default.
• W4231907515 hasConceptScore W4231907515C185592680 @default.
• W4231907515 hasConceptScore W4231907515C18903297 @default.
• W4231907515 hasConceptScore W4231907515C191952053 @default.
• W4231907515 hasConceptScore W4231907515C192562407 @default.
• W4231907515 hasConceptScore W4231907515C204787440 @default.
• W4231907515 hasConceptScore W4231907515C206991015 @default.
• W4231907515 hasConceptScore W4231907515C2779227376 @default.
• W4231907515 hasConceptScore W4231907515C41291067 @default.
• W4231907515 hasConceptScore W4231907515C42360764 @default.
• W4231907515 hasConceptScore W4231907515C49040817 @default.
• W4231907515 hasConceptScore W4231907515C513720949 @default.
• W4231907515 hasConceptScore W4231907515C57863236 @default.
• W4231907515 hasConceptScore W4231907515C71924100 @default.
• W4231907515 hasConceptScore W4231907515C86803240 @default.
• W4231907515 hasIssue "7" @default.
• W4231907515 hasLocation W42319075151 @default.
• W4231907515 hasOpenAccess W4231907515 @default.
• W4231907515 hasPrimaryLocation W42319075151 @default.
• W4231907515 hasRelatedWork W2045028063 @default.
• W4231907515 hasRelatedWork W2083683896 @default.
• W4231907515 hasRelatedWork W2093214482 @default.
• W4231907515 hasRelatedWork W2139871202 @default.
• W4231907515 hasRelatedWork W2359950063 @default.
• W4231907515 hasRelatedWork W2381330788 @default.
• W4231907515 hasRelatedWork W2390856013 @default.
• W4231907515 hasRelatedWork W2504111928 @default.
• W4231907515 hasRelatedWork W2736102262 @default.
• W4231907515 hasRelatedWork W2892281031 @default.
• W4231907515 hasVolume "MA2019-01" @default.
• W4231907515 isParatext "false" @default.
• W4231907515 isRetracted "false" @default.
• W4231907515 workType "article" @default.