Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Peedikakkandy, Lekha; Bhargava, Parag

doi:10.1016/j.mssp.2015.01.023

Cited by 16 publications

(13 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[33,34] For example, this technique was used by Zhou et al [35] to compare the crystalline features of the MAPbI 3 perovskite in mesoporous and planar PSCs. Electron-diffraction patterns acquired in a selected area (SAED) are used to assure the crystalline nature of the perovskite, and lattice spacing can be measure from highresolution images.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…[34,40,41] Moreover, EDS patterns have been used as evidence of pore filling of TiO 2 and Al 2 O 3 mesoporous layers. In several studies, a I:Pb ratio of around 3 has been used to corroborate the presence of the MAPbI 3 perovskite, whereas higher or lower values are related to the presence of unreacted precursors such as PbI 2 or methylammonium iodide (MAI).…”

Section: Energy-dispersive X-ray Spectroscopymentioning

confidence: 99%

“…Therefore, the crystalline phase and orientation can be identified. [33,34] For example, this technique was used by Zhou et al [35] to compare the crystalline features of the MAPbI 3 perovskite in mesoporous and planar PSCs. It was demonstrated that MAPbI 3 within mesoporous TiO 2 scaffold has grains of size 10-20 nm, whereas, in the capping and the planar layers, grains can be larger than 100 nm and elongated ( Figure 2B).…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…In several studies, a I:Pb ratio of around 3 has been used to corroborate the presence of the MAPbI 3 perovskite, whereas higher or lower values are related to the presence of unreacted precursors such as PbI 2 or methylammonium iodide (MAI). [34,40,41] Moreover, EDS patterns have been used as evidence of pore filling of TiO 2 and Al 2 O 3 mesoporous layers. [42] In the same way, bulk EDS has demonstrated successfully doping of TiO 2 mesoporous layer.…”

Section: Energy-dispersive X-ray Spectroscopymentioning

confidence: 99%

See 3 more Smart Citations

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

Hidalgo

Castro‐Méndez

Correa‐Baena

2019

Advanced Energy Materials

View full text Add to dashboard Cite

define the perovskite structure, decreases below 0.8 and orthorhombic, rhombohedral, or tetragonal structures tend to form. For large A-cations, layered 2D [3] and 1D [4] chain structures can be formed, e.g., Ruddlesden-Popper, Aurivillius, and Dion-Jacobson phases. Both 3D and 2D perovskites have gained the attention of the solar cell community.Lead halide perovskites are outstanding semiconductors with impressive optoelectronic properties, such as high absorption coefficient, tunable band gap, and long charge carrier lifetimes. Despite having such impressive properties, there is still a need for deeper understanding of the degradation mechanisms of the perovskite materials in order to make PSCs viable for outdoor applications and commercialization. [5,6] Currently, a major challenge facing perovskites is their long-term stability, due to their sensitivity to temperature, moisture, oxygen, and ultraviolet (UV) light. [6] Furthermore, chemical and electronic stability, compositional, and crystal homogeneity in the absorber layer of PSCs are parameters that allow us to understand and ensure the maximum PCE and long-term durability of the devices.Imaging and mapping characterization techniques allow researchers to obtain insights of the nano-and microscale features related to their chemical and electronic properties, which in turn limit PSC performance and long-term durability. This review will focus on the progress of the imaging and mapping techniques that have been used understanding and designing perovskite materials. This comprehensive review will span from basic morphology characterization methods, such as scanning electron microscopy (SEM) to advanced, synchrotron-based characterization using X-ray microscopy, such as X-ray fluorescence for compositional mapping, and X-ray beam induced current (XBIC) for electric performance mapping. Different imaging and mapping tools allow for correlations of different physical, chemical, optical and electrical features in space and time. These characterization techniques have helped explain phenomena that govern perovskite materials, including chemical and electrical properties and how they relate to solar cell performance. The following table summarizes the different imaging and mapping characterization techniques and their use for PSCs research.Perovskite solar cells (PSCs) have attracted much attention as efficiencies have gone beyond 24%. To achieve these impressive numbers, the PSC scientific community is working to improve the perovskite optoelectronic properties. Imaging and mapping characterization techniques have been widely used to understand the fundamental properties that allow lead halide perovskites to achieve high performance. In this review, these techniques are evaluated, from simple tools, such as electron microscopy, to more complex systems that include atomic force microscopy, synchrotron-based X-ray mapping, and ultrafast and photoluminescence mapping. These tools have helped understand lead halide perovskites and their impressive optoelectronic prope...

show abstract

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Energy-dispersive X-ray Spectroscopymentioning

confidence: 99%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Energy-dispersive X-ray Spectroscopymentioning

confidence: 99%

See 2 more Smart Citations

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

Hidalgo

Castro‐Méndez

Correa‐Baena

2019

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…Furthermore, they reported on the degradation mechanisms of CsSnI 3 . 273 Their results showed that the material was stable in an inert atmosphere, but when exposed to air and moisture it first underwent a phase transition to a non-conductive, one-dimensional phase and then oxidation to Cs 2 SnI 6 .…”

Section: Inorganic Hole Transporting Materialsmentioning

confidence: 99%

The researcher's guide to solid-state dye-sensitized solar cells

2018

View full text Add to dashboard Cite

show abstract

The Influence of Spontaneous Oxidative Conversion on the Characteristics of Lead‐Free Halide Perovskite CsSn(I_xBr₁₋_x)₃ and on the Performance of Perovskite Light‐Emitting Diodes

Hong

Chiu

et al. 2021

Adv Materials Inter

View full text Add to dashboard Cite

In this study, lead‐free perovskite CsSn(IxBr1−x)3 films with photoluminescence emission wavelengths from 677 to 887 nm are prepared. The influence of air exposure on their characteristics is also investigated. It is found that CsSnI3 can be transformed to Cs2SnI6 upon increasing the air exposure time. The decomposition and oxidation mechanisms are confirmed by the X‐ray diffraction pattern due to the presence of CsI peak. It is observed that devices based on the CsSn(IxBr1−x)3 film with increased Br− ratio and the CsSnI3 film with prolonged air exposure time show inferior performance. These results are mainly attributed to the highest occupied molecular orbital levels of CsSn(IxBr1−x)3 and Cs2SnI6. Defect density of state and binding energy of these materials are also investigated and reported in this study.

show abstract

Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Cited by 16 publications

References 16 publications

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

The researcher's guide to solid-state dye-sensitized solar cells

The Influence of Spontaneous Oxidative Conversion on the Characteristics of Lead‐Free Halide Perovskite CsSn(I_xBr₁₋_x)₃ and on the Performance of Perovskite Light‐Emitting Diodes

Contact Info

Product

Resources

About

Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Cited by 16 publications

References 16 publications

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

Imaging and Mapping Characterization Tools for Perovskite Solar Cells

The researcher's guide to solid-state dye-sensitized solar cells

The Influence of Spontaneous Oxidative Conversion on the Characteristics of Lead‐Free Halide Perovskite CsSn(IxBr1−x)3 and on the Performance of Perovskite Light‐Emitting Diodes

Contact Info

Product

Resources

About

The Influence of Spontaneous Oxidative Conversion on the Characteristics of Lead‐Free Halide Perovskite CsSn(I_xBr₁₋_x)₃ and on the Performance of Perovskite Light‐Emitting Diodes