Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating

Heo, Jin Hyuck; Zhang, Fei; Xiao, Chuanxiao; Heo, Su Jeong; Park, Jin Kyoung; Berry, Joseph J.; Zhu, Kai; Im, Sang Hyuk

doi:10.1016/j.joule.2020.12.010

Cited by 97 publications

(90 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The deposition of composition-graded CsPbI 2 Br thin film through spray-coating represents one of the most recent examples of large-area inorganic-perovskite-based device. [94] The graded perovskite structure widens the absorption range and carrier lifetime and increases the efficiency of charge separation and collection. [94] By this technique, a monolithically integrated module is obtained, with PCE = 13.82% (112 cm 2 aperture area) and ≈9% degradation over 1000 h continuous 1 sun light soaking (Figure 10E,F).…”

Section: All-inorganic Perovskite Solar Modulesmentioning

confidence: 99%

“…[94] The graded perovskite structure widens the absorption range and carrier lifetime and increases the efficiency of charge separation and collection. [94] By this technique, a monolithically integrated module is obtained, with PCE = 13.82% (112 cm 2 aperture area) and ≈9% degradation over 1000 h continuous 1 sun light soaking (Figure 10E,F). [94] To summarize, Table 2 reports the most recent progresses in the field of all-inorganic Cs-based perovskite solar modules, showing the active layer material, the device structure, the optimization strategy, the deposition method, the device area, and the PCE achieved.…”

Section: All-inorganic Perovskite Solar Modulesmentioning

confidence: 99%

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

“…[72] Nevertheless, several promising results were achieved in 2020, with a record efficiency of 13.82% for a 112 cm 2 submodule. [94] In addition, several research groups are now focusing their efforts toward the realization of all-inorganic Cs-based PSCs with scalable techniques, thus achieving 19% PCE in 2020 via blade coating deposition. [44] When considering potential commercial applications, CsPbI 3 can be successfully employed in single junction solar cells, delivering moderately high efficiency (>19%) devices with good stability, despite much work has still to be done to reach the performances of common organic-inorganic hybrid perovskites-nowadays 25.6% [98] -and the stability standards imposed by the market.…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

mentioning

confidence: 99%

See 4 more Smart Citations

All‐Inorganic Cesium‐Based Hybrid Perovskites for Efficient and Stable Solar Cells and Modules

Montecucco

Quadrivi

Pò

et al. 2021

Advanced Energy Materials

View full text Add to dashboard Cite

high defect tolerance, long carrier diffusion length, and compatibility toward scalable manufacturing processes to name a few. [2][3][4][5][6][7] However, hybrid perovskites face severe degradation issues under operative conditions, which stem from the (photo) chemical instability when exposed to moisture, oxygen, UV light, and heat. [8][9][10][11][12] Among other reasons, the presence of the hydrophobic organic cation, e.g., methylammonium, can accelerate the degradation path. [12][13][14] For this reason, a greater focus has been devoted to exploring inorganic elements to replace the organic cations, for instance, using cesium to form CsPbX 3 all-inorganic perovskites. This system has been revealed of particular interest especially for the improved thermal stability of the material and, consequently, the enhanced device lifetime. [13] CsPbI 3 and CsPbBr 3 are the most studied materials within this class, with a rapid boost of their use for highly efficient solar cells, reaching 19.03% in 2019. [15] However, the PCE of CsPbX 3 -based devices are still lower than their organic-inorganic counterparts and far from the Shockley-Queisser limit calculated for their bandgap. [16] Therefore, major efforts are required to stabilize the CsPbI 3 structure and to fabricate high quality CsPbX 3 thin films, before upscaling the manufacturing toward marketable devices. In this work, we provide a compelling perspective on the most recent and innovative strategies to tackle this challenge. The structural and optoelectronic properties of CsPbX 3 materials are first sorted out, with a focus on the film morphology, crystal structure, and phase transitions of each system. Second, methods for improving the photovoltaic performances and the stability of CsPbX 3 -based devices are reported, focusing on the highest PCE and the longest device lifetimes reported up to date. Finally, we provide a perspective on the state of the art and future challenges for the upscaling of all-inorganic perovskite modules.

show abstract

Section: All-inorganic Perovskite Solar Modulesmentioning

confidence: 99%

Section: All-inorganic Perovskite Solar Modulesmentioning

confidence: 99%

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

All‐Inorganic Cesium‐Based Hybrid Perovskites for Efficient and Stable Solar Cells and Modules

Montecucco

Quadrivi

Pò

et al. 2021

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

Printable Processing Technologies for Perovskite Solar Cells

Mei

et al. 2023

Printable Mesoscopic Perovskite Solar Cells

View full text Add to dashboard Cite

Control over Light Soaking Effect in All‐Inorganic Perovskite Solar Cells

Qin

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Light soaking (LS) has been reported to positively influence the device performance of perovskite solar cells (PSCs), which, however, could be potentially harmful to the loaded devices due to the unstable output. There are very few reports on controls over the LS effect, especially in all‐inorganic PSCs. In this study, a remarkable LS induced performance enhancement of CsPb(I1−xBrx)3 based PSCs is presented. In situ grazing‐incidence wide‐angle X‐ray scattering measurements quantize the temperature increase under illumination and reveal a radiative heating‐induced lattice expansion. The device curing time is shortened with the increased Br/I ratio, evidently correlated with their distinct mobility and activation energy. It is suggested that LS could promote the migration of halide ions, giving rise to notable defect passivation and thus device improvements. Based on these understandings, an effective means is proposed to suppress the LS effect, which is to incorporate slightly over‐stochiometric PbI2 in precursor, and a champion PCE of 18.14% in all‐inorganic PSCs with significantly reduced device curing time is obtained.

show abstract

Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating

Cited by 97 publications

References 35 publications

All‐Inorganic Cesium‐Based Hybrid Perovskites for Efficient and Stable Solar Cells and Modules

All‐Inorganic Cesium‐Based Hybrid Perovskites for Efficient and Stable Solar Cells and Modules

Printable Processing Technologies for Perovskite Solar Cells

Control over Light Soaking Effect in All‐Inorganic Perovskite Solar Cells

Contact Info

Product

Resources

About