Challenges, recent advances and improvements for enhancing the efficiencies of ABX3-based PeLEDs (perovskites light emitting diodes): A review

Tiwari, Ashish; Satpute, Nutan S.; Mehare, Chaitali M.; Dhoble, S.J.

doi:10.1016/j.jallcom.2020.156827

Cited by 30 publications

(16 citation statements)

References 127 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These inorganic materials need controlled crystal growth and high thermal budget, making the fabrication process expensive. There have been efforts to develop LEDs based on organic-inorganic hybrid perovskite materials, but their poor stability and hazardous-lead content remain a bottleneck in their commercialization [153][154][155][156] . Organic semiconductors offer solution processability, flexibility, transparency and excellent luminescent transport properties and making them a suitable choice for organic organic light emitting diodes (OLEDs) 157,158 .…”

Section: Light-emitting Diodesmentioning

confidence: 99%

Application of carotenoids in sustainable energy and green electronics

Singh

Mukherjee

2022

Mater. Adv.

View full text Add to dashboard Cite

show abstract

Section: Light-emitting Diodesmentioning

confidence: 99%

Application of carotenoids in sustainable energy and green electronics

Singh

Mukherjee

2022

Mater. Adv.

View full text Add to dashboard Cite

show abstract

“…Figure . 1 shows the XRD patterns of evaporation rate ratio of PbBr 2 to CsBr (1.14:1-4:1), the main diffraction peaks appear at 2θ = 21.5°and 34.2°, corresponding to the (110) and (210) crystal planes of the CsPbBr 3 phase (PDF#54-0752), The (110) crystal plane shows a higher diffraction intensity than the (210) crystal plane, showing a preferential crystal orientation of (110). At the same time, a diffraction peak appeared at 2θ = 29.8°corresponding to the (110) crystal plane of the CsBr phase [7] (PDF#05-0588).It is speculated that CsBr could not completely react with PbBr 2 to produce CsPbBr 3 due to the excessive amount of CsBr at this evaporation rate ratio, the excess CsBr displayed by the characteristic peak at 29.8° could easily lead to the high defect concentration of crystalline CsPbBr 3 [26] . This conjecture is further veri ed by EDS energy spectrum analysis.…”

Section: Control Of Evaporation Rate Ratiomentioning

confidence: 99%

“…Metal halide perovskites CsPbX 3 (X = Br, I, and Cl) have become a research hotspot in recent years due to their many advantages, such as excellent thermal stability [1] , extremely narrow emission bandwidth, tunable bandgap [2] , these unique characteristics make this material a promising candidate for a variety of optoelectronic devices [3] , especially light emitting diodes (LEDs) [4][5][6] , solar cells [7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Vacuum Evaporation of High Quality Cspbbr3 Thin Films for Efficient Light-Emitting Diodes

Bai

2022

Preprint

View full text Add to dashboard Cite

The all-inorganic lead halide perovskite has become a very promising optoelectronic material due to its excellent optical and electrical properties. Device performances are currently hindered by crystallinity of the film and environmental stability. Here, We adopted dual-source co-evaporation method to prepare CsPbBr3 films. By adjusting and controlling the co-evaporation ratio and substrate temperature, we obtained stable and large grains with uniform morphology CsPbBr3 films. Films with smooth surface and large grains exhibit efficient photon capture, fast carrier transport, and suppressed ion migration. Therefore, in this paper, by refining the annealing conditions, the effects of annealing temperature and time on the films were studied in detail. The CsPbBr3 films were annealed under suitable annealing temperature and time in ambient air, films with high quality and crystallinity, average grains size up to ~ 2.5 µm, films could maintain stability in ambient air for 130 days. The corresponding LED shows the full width at half-maximum (FWHM) of the green EL spectrum is as narrow as 18 nm, the devices have a low turn-on voltage VT ~ 3 V and can work continuously for 12 hours in ambient air.

show abstract

“…Perovskite semiconductors have attracted intensive research interest in recent years due to their versatile compositions and tunable electronic and optical properties. [1][2][3] As an important member in the perovskite family, lead (Pb) halide perovskites APbX3 (A + = CH3NH3 + , CH(NH2)2 + , Cs + ; X -= I -, Br -, Cl -) have achieved great success of applications in solar cells, 1 light-emitting diodes, 2 and photodetectors (Figure 1). 3 For example, the power conversion efficiency (PCE) of perovskite solar cells has been rapidly improved from 3.8% to 25.5% within only one decade.…”

Section: Introductionmentioning

confidence: 99%

“…Perovskite semiconductors have attracted intensive research interest in recent years due to their versatile compositions and tunable electronic and optical properties. − As an important member of the perovskite family, lead (Pb) halide perovskites APbX 3 (A + = CH 3 NH 3 + , CH(NH 2 ) 2 + , Cs + ; X – = I – , Br – , Cl – ) have achieved great success in the application of solar cells, light-emitting diodes, and photodetectors , because of their intriguing optoelectronic properties (see Figure ). For example, the power conversion efficiency (PCE) of perovskite solar cells has been rapidly improved from 3.8 to 25.5% within only one decade. , Despite the exciting progress, long-term instability and Pb toxicity are still key challenges hindering perovskite solar cells from practical applications …”

Section: Introductionmentioning

confidence: 99%

Structure–Composition–Property Relationships in Antiperovskite Nitrides: Guiding a Rational Alloy Design

Zhong

Feng

Wang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

ABX3 perovskites have attracted intensive research interest in recent years due to their versatile composition and superior optoelectronic properties. Their counterparts, antiperovskites (X3BA), can be viewed as electronically inverted perovskite derivatives, but they have not been extensively studied for solar applications. Therefore, understanding their composition-property relationships is crucial for future photovoltaic application. Here, taking six antiperovskite nitrides +2 3-3-3 X N A (X = Mg, Ca, Sr; A = P, As, Sb, Bi) as an example, we investigate the effect of X-and A-sites on the electronic, dielectric, and mechanical properties from the viewpoint of the first-principles calculations. Our calculation results show that the X-site dominates the conduction band, and the A-site has a non-negligible contribution to the band edge. These findings are completely different from traditional halide perovskites.Interestingly, when changing X-or A-site elements, a linear relationship between the tolerance factor and physical quantities, such as electronic parameters, dielectric constants, and Young's modulus, is observed. By designing the Mg3NAs1-xBix alloys, we further verify this power of the linear relationship, which provides a predictive guidance for experimental preparation of antiperovskite alloys. Finally, we make a comprehensive comparison between the antiperovskite nitrides and conventional halide perovskites for pointing out the future device applications.

show abstract

Challenges, recent advances and improvements for enhancing the efficiencies of ABX3-based PeLEDs (perovskites light emitting diodes): A review

Cited by 30 publications

References 127 publications

Application of carotenoids in sustainable energy and green electronics

Application of carotenoids in sustainable energy and green electronics

Vacuum Evaporation of High Quality Cspbbr3 Thin Films for Efficient Light-Emitting Diodes

Structure–Composition–Property Relationships in Antiperovskite Nitrides: Guiding a Rational Alloy Design

Contact Info

Product

Resources

About