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US 12,464,937 B1Granted
Perovskite optoelectric devices and methods of producing perovskite optoelectric devices on flexible and elastic substrates
AssigneeWashington University
InventorsChuan Wang, Junyi Zhao
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Abstract
A flexible perovskite LED (PeLED) device that includes a flexible PDMS substrate, a PEO-modified PEDOT:PSS transparent anode, a (CH3NH3PbBr3)/PEO composite emissive layer, a PEI buffer layer, and an AgNW cathode is disclosed. Methods of producing the PeLED are disclosed that include printing all layers under atmospheric conditions using a printing device to pattern an anode ink, a perovskite ink, a buffer polymer ink, and a cathode ink, with each layer annealed on-site at temperatures sufficient to evaporate the solvents in each ink.
Claims6
A photoelectronic device, comprising:
- a. a substrate comprising any one of PDMS-coated glass, PDMS-coated PET, PDMS-coated paper, PDMS-coated textile, vinyl, latex, or metal foil;
- b. a first electrode comprising polyethylene oxide (PEO)-modified poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEO-modified PEDOT:PSS), wherein the PEO comprises up to about 70 wt % of the PEO-modified PEDOT:PSS;
- c. a photoactive layer comprising perovskite microcrystals embedded in a polymer matrix, wherein the perovskite microcrystals comprise MAPbBr3, MAPb(Cl1-xBrx)3, MAPb(BrxI1-x)3, quasi-2D BA2(MAPbl3)n-1 Pbl4, and any combination thereof and the polymer matrix comprises PEO, PS, PMMA, and any combination thereof;
- and
- d. a second electrode comprising a silver nanowire (AgNW) network.
2 more elements
Dependencies are inferred from the claim text.