Intrinsic Broadband White‐Light Emission from Ultrastable, Cationic Lead Halide Layered Materials

Zhuang, Zewen; Peng, Chengzhong; Gao, Shan; Yang, Huimin; Yin, Jinlin; Fei, Honghan

doi:10.1002/anie.201706660

Cited by 130 publications

(129 citation statements)

References 55 publications

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“…4e,f). 69 These materials differ from standard 2D perovskites since the carboxylate is directly coordinated to the Pb 2+ centres through covalent bonds. In the fluoride compound the Pb 2+ is further coordinated with four fluorine atoms forming a distorted squareplanar geometry, while the chloride and bromide compounds form PbX 5 units which are analogous to half of the PbX 6 octahedra of typical 2D layered perovskites.…”

Section: S Z Zhuang Et Al Recently Synthetized a Series Of Rare Camentioning

confidence: 99%

“…This is further supported by the PL narrowing at low temperature, consistent with the coupling to vibrational modes of the inorganic lattice. 8,49,60,69,70 3.1 Intrinsic self-trapping and polaron formation in metal halide semiconductors. Similar to crystalline inorganic materials, when an electron is added to a ionic and highly polar crystal, 74 the strong Coulomb interactions between the excess charge and the lattice ions enhances the electron-phonon couplings.…”

Section: Origin Of Broadband Emissionmentioning

confidence: 99%

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White light emission in low-dimensional perovskites

et al. 2019

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Section: S Z Zhuang Et Al Recently Synthetized a Series Of Rare Camentioning

confidence: 99%

Section: Origin Of Broadband Emissionmentioning

confidence: 99%

White light emission in low-dimensional perovskites

et al. 2019

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“…Recently, broadband white‐light emission as an intrinsic property has been realized in ⟨110⟩‐oriented corrugated 2D or 1D organolead halide perovskites, which is attributed to the formation of self‐trapped excitons . This promising class of white‐light emitters is amenable to crystal engineering for further enhancing their photoluminescence properties . However, the intrinsic moisture instability of lead perovskites has not been fully addressed …”

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confidence: 99%

Intrinsic White‐Light‐Emitting Metal–Organic Frameworks with Structurally Deformable Secondary Building Units

et al. 2019

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The secondary building units in metal–organic frameworks (MOFs) are commonly well‐defined metal–oxo clusters or chains with very limited structural strain. Herein, the structurally deformable haloplumbate units that are often observed in organolead halide perovskites have been successfully incorporated into MOFs. The resultant materials are a rare class of isoreticular MOFs exhibiting large Stokes‐shifted broadband white‐light emission, which is probably induced by self‐trapped excitons from electron–phonon coupling in the deformable, zigzag [Pb2X3]+ (X=Cl, Br, or I) chains. In contrast, MOFs with highly symmetric, robust haloplumbate chains only exhibit narrow UV–blue photoemission. The designed MOF‐based intrinsic white‐light photoemitters have a number of advantages over hybrid inorganic–organic perovskites in terms of stability and tunability, including moisture resistance, facile functionalization of photoactive moieties onto the organic linkers, introduction of luminescent guests.

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“…[6][7][8][9][10][11][12] This promising class of white-light emitters is amenable to crystal engineering for further enhancing their photoluminescence properties. [13][14][15][16][17][18] However,the intrinsic moisture instability of lead perovskites has not been fully addressed. [19] Luminescent metal-organic frameworks (MOFs) are considered to be an ideal platform for single-phase white-light photoemitters,o wing to their capability to organize multiple photoemissive components into as ingle lattice.…”

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confidence: 99%