18‐4: Converting Light Diffusing Polymer Powders into Stable Perovskite‐Based Tunable Downconverters

Zhang, Caicai; He, Jinwei; Chen, Hao; Tan, Guanjun; Zhou, Le; Sohn, Yongho; Dong, Yajie

doi:10.1002/sdtp.12529

Cited by 5 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water, heat, light, oxygen, or combing effects in the ambient air will all accelerate the decomposition of the perovskite nanoparticles and further lead to the luminescent quenching [44,45]. Therefore, strategies, such as using zwitterionic ligand, encapsulating PNCs into inert shells, and in-situ synthesis of perovskite nanoparticles in or on a polymer or inorganic matrix have been developed [26,[46][47][48][49][50]. Among them, in-situ fabrication becomes more and more predominant, since it holds great promise on the stabilization of the embedded PNCs in target device structures [51][52][53].…”

Section: Materials Development and Characterizationmentioning

confidence: 99%

Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays

Zhang

Dong

et al. 2019

Crystals

Self Cite

View full text Add to dashboard Cite

Recent advances in perovskite nanocrystals-enhanced solid-state lighting (SSL) and liquid-crystal displays (LCDs) are reviewed. We first discuss the development, optical properties, and stability issue of materials, and then we evaluate the performance of SSL and LCDs with perovskite downconverters adopted. In SSL performance evaluation, we investigate the fitting-curve effect in calculations and optimizations where simple Gaussian fitting and precise fitting are compared in detail, and we further optimize for highly efficient, good color-rendering, and human-healthy SSL sources. For LCD performance evaluation, we study the intrinsic tradeoffs between total light efficiency and color gamut coverage. Through optimizations using real line shapes, Rec. 2020 standard coverage as large as 92.8% can be achieved through hybrid integration. Finally, we briefly discuss two future challenges: materials development and device integration. We believe the emerging perovskite nanocrystals are highly promising for next-generation SSL and LCDs.

show abstract

Section: Materials Development and Characterizationmentioning

confidence: 99%

Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays

Zhang

Dong

et al. 2019

Crystals

Self Cite

View full text Add to dashboard Cite

show abstract

“…One promising solution is to synthesize these MHP nanocrystals in or on a polymer or inorganic matrix [ 30 , 31 ]. More interestingly, our group has developed stable, scattering, downconverting particles through anchoring the MHP nanocrystals on light-diffusing polymer particle matrices [ 32 ]. The simple process and very low-cost precursors and materials should enable their adoptions for these applications.…”

Section: Introductionmentioning

confidence: 99%

Perovskite Downconverters for Efficient, Excellent Color-Rendering, and Circadian Solid-State Lighting

Zhang

Chen

et al. 2019

Nanomaterials

Self Cite

View full text Add to dashboard Cite

Advances in materials, color rendering metrics and studies on biological effects promote the design for novel solid-state lighting sources that are highly energy efficient, excellent at color rendering and healthy for human circadian rhythms. Recently, perovskite nanocrystals have emerged as narrow-band, low-cost, color-tunable downconverters, elevating the design and development of solid-state lighting to a new level. Here, we perform a systematic optimization of using perovskite nanocrystals as downconverters to simultaneously optimize vision energy efficiency, color rendering quality and circadian action effect of lighting sources at both fixed and tunable color temperatures. Further analysis reveals the inherent differences in central wavelength and bandwidth preferences for different cases, providing a general guideline for designing circadian lighting. Through systematic optimization, highly efficient circadian lighting sources with excellent color rendering can be achieved.

show abstract

“…Herein, we report a one-step, general synthesis method that can convert commercial light-diffusing polymer microspheres into highly luminescent perovskite-based downconverters at an extremely low cost. Involving a quick anti-solvent-induced heterogeneous nucleation, this method creates welldispersed perovskite nanoparticles anchored onto polymer microspheres and the whole process takes only several seconds at room temperature without any complex experimental setups [7]. Significantly, the as-synthesized perovskite-on-polymer microspheres (PPMs) offer widely tunable, highly saturated colors, superior stability and light-diffusing capability.…”

Section: Introductionmentioning

confidence: 99%

Light diffusing, down-converting perovskite-on-polymer microspheres

Caicai

Chen

et al. 2019

J. Mater. Chem. C

Self Cite

View full text Add to dashboard Cite

show abstract

18‐4: Converting Light Diffusing Polymer Powders into Stable Perovskite‐Based Tunable Downconverters

Cited by 5 publications

References 7 publications

Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays

Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays

Perovskite Downconverters for Efficient, Excellent Color-Rendering, and Circadian Solid-State Lighting

Light diffusing, down-converting perovskite-on-polymer microspheres

Contact Info

Product

Resources

About