Matches in SemOpenAlex for { <https://semopenalex.org/work/W2792269418> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2792269418 abstract "Highly efficient solar cells using methylammonium lead iodide (MAPbI3) have been reported by many researchers. Recently, other metal halide perovskites have been developed which promise better stability. For example replacing the organic cation methylammonium with formamidinium (FA) has been shown to improve the power conversion efficiency and stability of perovskite thin-films under certain conditions such as thermal stress [1]. Additionally, FAPbI3 has a lower band-gap of 1.48eV, thus FAPbI3 based solar cells have a higher short circuit current than cells based on MAPbI3. Furthermore, mixed cation perovskites which alloy formamidinium, methylammonium and caesium have led to even greater improvements in stability and efficiency [2]. Until recently, thin films of perovskites with cations other than methylammonium have mainly be been fabricated using a solution processing route. Here we demonstrate vacuum deposition of formamidinium lead halide absorber thin films [3]. We deposited the films by co-evaporating FAI and PbI2. This vapour deposition method offers several advantages: the process takes place in vacuum, this reduces the influence of outside factors and increases the reproducibility; films can be vapour deposited on any substrate without the risk of solvent damage to the substrate layers; and finally, the resulting films are very uniform and pinhole-free over large areas. The good uniformity of this technique is particularly helpful for future upscaling of these solar cells. We characterised the FAPbI3 films, using methods such as X-ray diffraction, visible- and infrared-absorption spectroscopy, scanning electron microscopy and cross-sectional transmission electron microscopy. These measurements confirm the formation of the perovskite phase of FAPbI3. Furthermore, we processed these co-evaporated films into planar perovskite solar cells. These solar cells reached high power conversion efficiencies, comparable to the efficiencies of MAPbI3 control devices. As expected, the short circuit voltage was higher than for the MAPbI3 devices while the open circuit voltage was slightly lower. The successful fabrication of vapour deposited and very uniform formamidinium lead iodide films is necessary for exact optical material characterisation. This work represents an important step towards realising large-area vapour deposited mixed cation perovskite solar cells." @default.
- W2792269418 created "2018-03-29" @default.
- W2792269418 creator A5004903905 @default.
- W2792269418 creator A5006963604 @default.
- W2792269418 creator A5012802779 @default.
- W2792269418 creator A5015369410 @default.
- W2792269418 creator A5023130754 @default.
- W2792269418 creator A5035524346 @default.
- W2792269418 creator A5039957577 @default.
- W2792269418 creator A5045723260 @default.
- W2792269418 creator A5058472759 @default.
- W2792269418 date "2018-02-21" @default.
- W2792269418 modified "2023-09-22" @default.
- W2792269418 title "Co-evaporated Formamidinium Lead Iodide Solar Cells" @default.
- W2792269418 doi "https://doi.org/10.29363/nanoge.hopv.2018.028" @default.
- W2792269418 hasPublicationYear "2018" @default.
- W2792269418 type Work @default.
- W2792269418 sameAs 2792269418 @default.
- W2792269418 citedByCount "0" @default.
- W2792269418 crossrefType "proceedings-article" @default.
- W2792269418 hasAuthorship W2792269418A5004903905 @default.
- W2792269418 hasAuthorship W2792269418A5006963604 @default.
- W2792269418 hasAuthorship W2792269418A5012802779 @default.
- W2792269418 hasAuthorship W2792269418A5015369410 @default.
- W2792269418 hasAuthorship W2792269418A5023130754 @default.
- W2792269418 hasAuthorship W2792269418A5035524346 @default.
- W2792269418 hasAuthorship W2792269418A5039957577 @default.
- W2792269418 hasAuthorship W2792269418A5045723260 @default.
- W2792269418 hasAuthorship W2792269418A5058472759 @default.
- W2792269418 hasConcept C111368507 @default.
- W2792269418 hasConcept C127313418 @default.
- W2792269418 hasConcept C127413603 @default.
- W2792269418 hasConcept C155011858 @default.
- W2792269418 hasConcept C171250308 @default.
- W2792269418 hasConcept C171560689 @default.
- W2792269418 hasConcept C178790620 @default.
- W2792269418 hasConcept C179104552 @default.
- W2792269418 hasConcept C185592680 @default.
- W2792269418 hasConcept C19067145 @default.
- W2792269418 hasConcept C192562407 @default.
- W2792269418 hasConcept C2775959666 @default.
- W2792269418 hasConcept C2777289219 @default.
- W2792269418 hasConcept C42360764 @default.
- W2792269418 hasConcept C49040817 @default.
- W2792269418 hasConceptScore W2792269418C111368507 @default.
- W2792269418 hasConceptScore W2792269418C127313418 @default.
- W2792269418 hasConceptScore W2792269418C127413603 @default.
- W2792269418 hasConceptScore W2792269418C155011858 @default.
- W2792269418 hasConceptScore W2792269418C171250308 @default.
- W2792269418 hasConceptScore W2792269418C171560689 @default.
- W2792269418 hasConceptScore W2792269418C178790620 @default.
- W2792269418 hasConceptScore W2792269418C179104552 @default.
- W2792269418 hasConceptScore W2792269418C185592680 @default.
- W2792269418 hasConceptScore W2792269418C19067145 @default.
- W2792269418 hasConceptScore W2792269418C192562407 @default.
- W2792269418 hasConceptScore W2792269418C2775959666 @default.
- W2792269418 hasConceptScore W2792269418C2777289219 @default.
- W2792269418 hasConceptScore W2792269418C42360764 @default.
- W2792269418 hasConceptScore W2792269418C49040817 @default.
- W2792269418 hasLocation W27922694181 @default.
- W2792269418 hasOpenAccess W2792269418 @default.
- W2792269418 hasPrimaryLocation W27922694181 @default.
- W2792269418 hasRelatedWork W1970607945 @default.
- W2792269418 hasRelatedWork W2106706072 @default.
- W2792269418 hasRelatedWork W2155474837 @default.
- W2792269418 hasRelatedWork W2290607482 @default.
- W2792269418 hasRelatedWork W2519742113 @default.
- W2792269418 hasRelatedWork W2555799034 @default.
- W2792269418 hasRelatedWork W2612423238 @default.
- W2792269418 hasRelatedWork W2754701792 @default.
- W2792269418 hasRelatedWork W2768070091 @default.
- W2792269418 hasRelatedWork W2883821540 @default.
- W2792269418 hasRelatedWork W2898528118 @default.
- W2792269418 hasRelatedWork W2932733361 @default.
- W2792269418 hasRelatedWork W2954676985 @default.
- W2792269418 hasRelatedWork W2955075407 @default.
- W2792269418 hasRelatedWork W2963161663 @default.
- W2792269418 hasRelatedWork W2979316559 @default.
- W2792269418 hasRelatedWork W3022627256 @default.
- W2792269418 hasRelatedWork W3147229886 @default.
- W2792269418 hasRelatedWork W3185274090 @default.
- W2792269418 hasRelatedWork W3187903323 @default.
- W2792269418 isParatext "false" @default.
- W2792269418 isRetracted "false" @default.
- W2792269418 magId "2792269418" @default.
- W2792269418 workType "article" @default.