Tuning of the Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Record Efficiency Exceeding 21%

Wang, Pang; Li, Wei; Sandberg, Oskar J.; Guo, Chuanhang; Sun, Rui; Wang, Hui; Li, Donghui; Zhang, Huijun; Cheng, Shili; Liu, Dan; Min, Jie; Armin, Ardalan; Wang, Tao

doi:10.1021/acs.nanolett.1c02897

Cited by 43 publications

(58 citation statements)

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“…[104] Wang et al used this wide-bandgap CsPbI 2 Br semiconductor with narrow-bandgap PM6:Y6-BO blend to fabricate a perovskite/organic tandem solar cells to increase the utilization of solar wavelength region (Figure 8j). [13] This approach yielded an efficiency of 21.1% and a very small tandem open-circuit voltage loss of 0.06 V. This gives future direction for the use of this inorganic wide bandgap semiconductor in tandem solar cell application. In 2022, Hu et al exhibited enhanced domain growth due to strain relaxation by performing α → δ → α phase transition growth, which enabled them to achieve a remarkably high V oc of 1.36 V. [105] Table 3 lists the novelty, device architecture and yearly progress in efficiency of CsPbI 2 Br.…”

Section: Cspbi 2 Brmentioning

confidence: 81%

“…[12] Recently, Wang et al successfully utilized a wide-bandgap CsP-bI 2 Br semiconductor and an organic blend of narrow-bandgap PM6:Y6-BO to fabricate perovskite/organic tandem solar cells which yielded an efficiency of 21.1%. [13] Although thermally stable, CsPbI 3 faces the problem of moisture instability and high-temperature crystallization. This instability is attributed to the small ionic radii of Cs (167 pm) which result in a Goldschmidt tolerance value of 0.81.…”

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confidence: 99%

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Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Singh

Satapathi

2022

Adv Materials Inter

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path of perovskite solar cells (PSCs). [2] A major reason for perovskite instability is the presence of organic cation CH 3 NH 3 + (MA + ) and HC(NH 2 ) 2 (FA + ) which are hygroscopic and volatile. [3] An effective approach to fight the thermal instability is the replacement of an organic cation with an inorganic cation. Within the perovskite composition space, cesium (Cs + ) is the only inorganic cation that can successfully crystallize in the cubic perovskite phase. [4,5] Cahen with co-workers 2015 established that all-inorganic perovskites have the potential to work equally well as hybrid perovskites and can provide better stability. [6,7] An extensive work was hereafter done by researchers on CsPbX 3 leading to its emergence as a rising star of photovoltaics. Interestingly, CsPbX 3 perovskite exists in different phases depending on temperature, synthesizing conditions, and composition. [8,9] Among the different halogen counterparts of CsPbX 3 , the iodine counterpart exhibits the most suitable optical bandgap (1.7 eV) for solar cells per Shockley-Queisser (SQ) limit. Owing to the rigorous work including doping, alloying, and interface engineering, CsPbX 3 showed an outstanding enhancement in power conversion efficiency (PCE) from 5.72% in 2015 to 20.7% in 2021. [6,10] Also, the other halogen counterparts are studied for low-temperature crystallization and stabilization. Apart from single-junction solar cells, research in the next generation of PSCs is also focusing on the formation of tandem solar cells (TSCs). TSCs are utilizing wide-bandgap semiconductors as front cells and narrow-bandgap semiconductors as rear cells to absorb high and low-energy photons, respectively. The bandgap of CsPbX 3 is quite suitable to serve as the front cell in TSCs with another low-bandgap perovskite, silicon, organic semiconductor blends, and CIGS as the rear cell. [11] Cao et al. proposed using inorganic perovskites in conjunction with organic semiconductors. [12] Recently, Wang et al. successfully utilized a wide-bandgap CsP-bI 2 Br semiconductor and an organic blend of narrow-bandgap PM6:Y6-BO to fabricate perovskite/organic tandem solar cells which yielded an efficiency of 21.1%. [13] Although thermally stable, CsPbI 3 faces the problem of moisture instability and high-temperature crystallization. This instability is attributed to the small ionic radii of Cs (167 pm) which result in a Goldschmidt tolerance value of 0.81. [14] The all-inorganic CsPbX 3 (X-Cl, Br, I) perovskite has the potential to solve the practical issues of environmental instability due to the presence of hygroscopic organic cations in the hybrid organic-inorganic perovskites. The promising CsPbX 3 perovskite exists in different crystallographic phases depending upon the composition and processing conditions which potentially impact the film morphology, device efficiency, and stability. Stabilizing the black metastable phase at room temperature has substantially solved the problem of high crystallization temperature, which is the main roadblock in managi...

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Section: Cspbi 2 Brmentioning

confidence: 81%

mentioning

confidence: 99%

Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Singh

Satapathi

2022

Adv Materials Inter

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“…The OSCs usually employ absorbers with E g of 1.2-1.3 eV, match-ing well with CsPbI 2 Br perovskite (E g = 1.92 eV). [183][184][185][186][187] However, inorganic perovskites require a high-temperature annealing process, which is incompatible with flexible substrates and energy conservation. Turning to organic-inorganic hybrid perovskites, combining the preliminary explorations of perovskite/organic TSCs, [188][189][190] Chen et al established a semi-empirical model for perovskite/organic TSCs to assess the PCE limit of various combinations.…”

Section: Perovskite/organic Tscsmentioning

confidence: 99%

“…The OSCs usually employ absorbers with E g of 1.2–1.3 eV, matching well with CsPbI 2 Br perovskite ( E g = 1.92 eV). [ 183–187 ] However, inorganic perovskites require a high‐temperature annealing process, which is incompatible with flexible substrates and energy conservation.…”

Section: Applications Of Wbg Pscsmentioning

confidence: 99%

Wide‐Bandgap Organic–Inorganic Lead Halide Perovskite Solar Cells

et al. 2022

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Under the groundswell of calls for the industrialization of perovskite solar cells (PSCs), wide-bandgap (>1.7 eV) mixed halide perovskites are equally or more appealing in comparison with typical bandgap perovskites when the former's various potential applications are taken into account. In this review, the progress of wide-bandgap organic-inorganic hybrid PSCs-concentrating on the compositional space, optimization strategies, and device performance-are summarized and the issues of phase segregation and voltage loss are assessed. Then, the diverse applications of wide-bandgap PSCs in semitransparent devices, indoor photovoltaics, and various multijunction tandem devices are discussed and their challenges and perspectives are evaluated. Finally, the authors conclude with an outlook for the future development of wide-bandgap PSCs.

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“…Chen et al 37 reported a semi-empirical device model to optimize the PCEs of perovskite-organic tandem solar cells with a certified value of 19.5%. Xie et al, 38 Wang et al, 39 and Chen et al 40 demonstrated the potential of combining wide band gap inorganic perovskites with low band gap organic active layers in tandem devices. However, these devices have an active area of no more than 0.15 cm 2 .…”

Section: ■ Introductionmentioning

confidence: 99%

High-Performance 1 cm² Perovskite-Organic Tandem Solar Cells with a Solvent-Resistant and Thickness-Insensitive Interconnecting Layer

Zhang

Cueto

Ding

et al. 2022

ACS Appl. Mater. Interfaces

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Organic solar cells (OSCs) and perovskite solar cells (PVSCs) are promising candidates for next-generation thin film photovoltaic technologies. The integration of OSCs with PVSCs in tandem devices is now attracting significant attention due to their similar fabrication procedures and the potential to afford a higher device performance. Here, a thickness-insensitive and solvent-resistant interconnecting layer is developed to efficiently connect perovskite and organic subcells with low contact resistance. The resultant perovskite-organic tandem devices maintain high efficiencies over a wide thickness range of the interconnecting layer, from ∼20 nm to ∼50 nm, providing an easily fabricated, solvent-resistant platform to integrate perovskite and organic active layers with low-temperature solution processing techniques. The tandem devices containing an ultrathin PVSC and a typical non-fullerene OSC give a maximum efficiency of 19.2%, which is much higher than those of the single-junction devices. Moreover, highly reproducible 1 cm2 perovskite-organic tandem devices are achieved using the thickness-insensitive and solvent-resistant interconnecting layer, and an efficiency of 17.8% is realized. These 1 cm2 tandem solar cells are used successfully in solar-to-hydrogen systems to afford a solar-to-fuel conversion efficiency of 11.2%. Overall, these advances represent significant progress in the design of ultrathin and facile solution processed perovskite-organic tandem solar cells.

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Tuning of the Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Record Efficiency Exceeding 21%

Cited by 43 publications

References 50 publications

Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Wide‐Bandgap Organic–Inorganic Lead Halide Perovskite Solar Cells

High-Performance 1 cm² Perovskite-Organic Tandem Solar Cells with a Solvent-Resistant and Thickness-Insensitive Interconnecting Layer

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Tuning of the Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Record Efficiency Exceeding 21%

Cited by 43 publications

References 50 publications

Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Advances in Processing Kinetics for All‐Inorganic Halide Perovskite: Towards Efficient and Thermodynamic Stable Solar Cells

Wide‐Bandgap Organic–Inorganic Lead Halide Perovskite Solar Cells

High-Performance 1 cm2 Perovskite-Organic Tandem Solar Cells with a Solvent-Resistant and Thickness-Insensitive Interconnecting Layer

Contact Info

Product

Resources

About

High-Performance 1 cm² Perovskite-Organic Tandem Solar Cells with a Solvent-Resistant and Thickness-Insensitive Interconnecting Layer