Enhancement in lifespan of halide perovskite solar cells

Wang, Qiong; Phung, Nga; Girolamo, Diego Di; Vivo, Paola; Abate, Antonio

doi:10.1039/c8ee02852d

Cited by 159 publications

(135 citation statements)

References 182 publications

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“…However, UV‐induced damage specifically related to PDs is not very well documented in the literature. On the other hand, studies on the UV‐degradation of PSCs, and possible solution to enhance their lifespan, are widely available . It is worth highlighting that, both for PSCs and PDs, further studies to clarify the effects of reversible and irreversible UV‐induced degradation mechanisms under realistic experimental conditions are urgently needed .…”

Section: Optoelectronic Propertiesmentioning

confidence: 99%

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Liu

Zhang

Gedamu

et al. 2019

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Colloidal perovskite nanocrystals (PNCs) combine the outstanding optoelectronic properties of bulk perovskites with strong quantum confinement effects at the nanoscale. Their facile and low‐cost synthesis, together with superior photoluminescence quantum yields and exceptional optical versatility, make PNCs promising candidates for next‐generation optoelectronics. However, this field is still in its early infancy and not yet ready for commercialization due to several open challenges to be addressed, such as toxicity and stability. Here, the key synthesis strategies and the tunable optical properties of PNCs are discussed. The photophysical underpinnings of PNCs, in correlation with recent developments of PNC‐based optoelectronic devices, are especially highlighted. The final goal is to outline a theoretical scaffold for the design of high‐performance devices that can at the same time address the commercialization challenges of PNC‐based technology.

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Section: Optoelectronic Propertiesmentioning

confidence: 99%

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Liu

Zhang

Gedamu

et al. 2019

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“…The Goldschmidt tolerance factor ( t ) has played a pivotal role in development of perovskites and is now being used to engineer/synthesize new organic–inorganic stable perovskites structures by formulating the composition of perovskite. The tolerance factor can be tuned to the stable perovskite range by mixing distinct A/B cations and X anions in a particular composition …”

Section: Introductionmentioning

confidence: 99%

“…The tolerance factor can be tuned to the stable perovskite range by mixing distinct A/B cations and X anions in a particular composition. [14][15][16][17]…”

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confidence: 99%

Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review

Kour¹,

et al. 2019

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Lead halide perovskites have displayed the highest solar power conversion efficiencies of 23% but the toxicity issues of these materials need to be addressed. Lead‐free perovskites have emerged as viable candidates for potential use as light harvesters to ensure clean and green photovoltaic technology. The substitution of lead by Sn, Ge, Bi, Sb, Cu and other potential candidates have reported efficiencies of up to 9%, but there is still a dire need to enhance their efficiencies and stability within the air. A comprehensive review is given on potential substitutes for lead‐free perovskites and their characteristic features like energy bandgaps and optical absorption as well as photovoltaic parameters like open‐circuit voltage (VOC), fill factor, short‐circuit current density (J SC), and the device architecture for their efficient use. Lead‐free perovskites do possess a suitable bandgap but have low efficiency. The use of additives has a significant effect on their efficiency and stability. The incorporation of cations like diethylammonium, phenylethyl ammonium, phenylethyl ammonium iodide, etc., or mixed cations at different compositions at the A‐site is reported with engineered bandgaps having significant efficiency and stability. Recent work on the advancement of lead‐free perovskites is also reviewed.

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“…[3,[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Till today, lead halide perovskite is one of the materials which has shown the highest efficiency for light-emitting diodes (LEDs) and photovoltaic applications. [1,6,[21][22][23][24][25][26] These interesting properties of perovskites are mainly due to their peculiar crystal structures. [27,28] Thus, any alteration in the crystal structure can vary the optoelectronic properties of perovskites.…”

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confidence: 99%

Role of Capped Oleyl Amine in the Moisture‐Induced Structural Transformation of CsPbBr₃ Perovskite Nanocrystals

Sandeep

Gopika

Revathi

2019

Physica Rapid Research Ltrs

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The moisture‐induced structural decomposition of lead halide perovskites is the major challenge in solar cells and light‐emitting diodes based on perovskites as the active material. The presence of moisture results in the structural conversion of cubic 3D CsPbBr3 nanocrystals to 2D CsPb2Br5 nanosheets before its decomposition to PbBr2. The capping agent used, oleyl amine, plays a crucial role in this structural transformation. The presence of moisture converts the capping agent, oleyl amine, to its salt, which transforms the 3D CsPbBr3 perovskite nanocrystals to 2D CsPb2Br5 nanosheets. Further, these CsPb2Br5 nanosheets decompose to trigonal PbBr2, in the presence of higher amounts of water. Also, the amount of capping agent, oleyl amine, plays an important role in the rate of moisture‐induced structural transformations. The rate of decomposition increases with the amount of oleyl amine used as a result of the reaction of water with the excess ligands. By revealing the exact mechanism of the structural alterations in the presence of water, new design strategies can be used to prevent the decomposition of perovskites.

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Enhancement in lifespan of halide perovskite solar cells

Abstract: All inorganic perovskite solar cells lead to extended device lifespan in an accelerated ageing test.

Cited by 159 publications

References 182 publications

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review

Role of Capped Oleyl Amine in the Moisture‐Induced Structural Transformation of CsPbBr₃ Perovskite Nanocrystals

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Enhancement in lifespan of halide perovskite solar cells

Abstract: All inorganic perovskite solar cells lead to extended device lifespan in an accelerated ageing test.

Cited by 159 publications

References 182 publications

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review

Role of Capped Oleyl Amine in the Moisture‐Induced Structural Transformation of CsPbBr3 Perovskite Nanocrystals

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Role of Capped Oleyl Amine in the Moisture‐Induced Structural Transformation of CsPbBr₃ Perovskite Nanocrystals