Will organic–inorganic hybrid halide lead perovskites be eliminated from optoelectronic applications?

Yi, Zhaoxiang; Ladi, Najib Haji; Shai, Xuxia; Li, Hao; Shen, Yan; Wang, Mingkui

doi:10.1039/c8na00416a

Cited by 155 publications

(112 citation statements)

References 97 publications

Supporting

Mentioning

109

Contrasting

Unclassified

Order By: Relevance

“…The size of cation A must be larger than that of cation B. Ideally, perovskite crystal structure is described as a body centered cubic structure with monovalent cation A dodecahedrally (12‐fold) coordinated by X anions as shown in Figure . The volume occupied by A ions depends on the electronegativity and size of B and X ions, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The octahedral factor (μ) must lie in the range of 0.44–0.72 for B and X in order to form a stable BX 6 octahedron . The tolerance factor has an immense role to play in finding alternative lead halide perovskite materials as many different cations can be inserted in ABX 3 structure framework leading to development of varied materials with specific engineered properties …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Kour¹,

et al. 2019

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Kour¹,

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Notably, Sn‐based PSC devices have recently shown promising PCE approaching 10% . Nevertheless, the easy oxidization of Sn 2+ to Sn 4+ and Ge 2+ to Ge 4+ leads to the instability of PSC devices in ambient condition, which remains the biggest challenge in Sn‐ or Ge‐based PSCs . In addition to Sn or Ge, another candidate for the substitution of Pb 2+ is non‐toxic Bi 3+ and Sb 3+ in the V main group, but their corresponding 0D or 2D A 3 B 2 X 9 crystal structure tends to strongly bound excitons, leading to low charge mobility and inferior photovoltaic performance …”

Section: Introductionmentioning

confidence: 99%

Post‐Treatment Engineering of Vacuum‐Deposited Cs₂NaBiI₆ Double Perovskite Film for Enhanced Photovoltaic Performance

Gao

et al. 2019

Physica Status Solidi (a)

View full text Add to dashboard Cite

Lead‐free double perovskite materials have recently shown promising in optoelectronic application. However, the poor solubility of these materials makes them difficult to form a high‐quality thin film via the solution‐processible technology, which leads to the poor photovoltaic performance of a solar cell device. Herein, the vacuum‐evaporated Cs2NaBiI6 double perovskite film with high quality achieved by the post‐treatment engineering is demonstrated. It is found that soaking in isopropyl alcohol (IPA) followed by annealing in dimethyl formamide (DMF) atmosphere can enlarge the size of grains, lower trap‐state density, and remove side product of the Cs2NaBiI6 film. The resulting solar cell devices show a power conversion efficiency (PCE) of 0.21% (VOC = 0.70 V, JSC = 0.91 mA cm−2, and fill factor (FF) = 33%), which is tenfold higher than the control device without post‐treatment (PCE = 0.02%, VOC = 0.49 V, JSC = 0.19 mA cm−2, and FF = 24%). In addition, the device shows robust stability against moisture and oxygen in ambient condition. The vacuum deposition method accompanied with a post‐treatment strategy, in this work, provides an important research direction in improving the quality of a double perovskite film and the PCE of corresponding perovskite solar cells (PSCs).

show abstract

“…The Ni 2+ ‐passivated device maintained 90% of its initial PCE in an environment of AM 1.5G 1 sun and air equivalent irradiance (temperature ≈25 ° C, humidity ≈45 RH%) for 150 h. In addition, the experiment also found that MAPbI 3 (Ni 2+ ) has a maximum steady‐state output power at 0.95 V and a higher stability at the maximum steady‐state output power. Therefore, doping and passivation engineering hold great promising to improve the stability of MAPbI 3 to meet the criteria mentioned above …”

Section: Methods For Improving the Stability Of Oihp‐based Solar Cellsmentioning

confidence: 99%

Stability Issue of Perovskite Solar Cells under Real‐World Operating Conditions

Ladi

et al. 2019

Energy Tech

Self Cite

View full text Add to dashboard Cite

Organic–inorganic lead halide perovskites solar cells (PSCs) show great potential in the photovoltaic system, reaching overall power conversion efficiencies (PCE) up to 25.2%. The rapid increase of PCE in PSCs has made them the rising star of the photovoltaics world, with great interest to the academic community. Long‐term stability under working environments remains a significant challenge for the commercialization of PSCs, particularly those using inorganic–organic halide lead perovskite absorbers. In this regard, only the devices that can maintain long‐term stability under conditions of temperature, humidity, and UV irradiation can be called stable solar cells. This Review highlights the sources for the chemical instability problems in conventional CH3NH3PbI3‐based perovskite solar cells from humidity instability, phase instability, thermal instability, and ion migration. In pursuit of highly stable PSCs, this article also discusses the strategies to stabilize PSCs through both external and internal aspects without sacrificing the PCE, specifically including additive engineering with surface passivation and composition engineering.

show abstract

Will organic–inorganic hybrid halide lead perovskites be eliminated from optoelectronic applications?

Abstract: In the development of perovskite solar cells, a new version of Don Quixote is needed if scientists are to keep on seeking the most celebrated works of literature, according to the evaluation criterion of ‘THE FIRST’ and ‘THE BEST’.

Cited by 155 publications

References 97 publications

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

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

Post‐Treatment Engineering of Vacuum‐Deposited Cs₂NaBiI₆ Double Perovskite Film for Enhanced Photovoltaic Performance

Stability Issue of Perovskite Solar Cells under Real‐World Operating Conditions

Contact Info

Product

Resources

About

Will organic–inorganic hybrid halide lead perovskites be eliminated from optoelectronic applications?

Abstract: In the development of perovskite solar cells, a new version of Don Quixote is needed if scientists are to keep on seeking the most celebrated works of literature, according to the evaluation criterion of ‘THE FIRST’ and ‘THE BEST’.

Cited by 155 publications

References 97 publications

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

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

Post‐Treatment Engineering of Vacuum‐Deposited Cs2NaBiI6 Double Perovskite Film for Enhanced Photovoltaic Performance

Stability Issue of Perovskite Solar Cells under Real‐World Operating Conditions

Contact Info

Product

Resources

About

Post‐Treatment Engineering of Vacuum‐Deposited Cs₂NaBiI₆ Double Perovskite Film for Enhanced Photovoltaic Performance