PbS掺杂量子点玻璃的超宽带红外发光和光放大的中期报告QuantumdotglassescontainingPbSareapromisingmaterialforbroadbandinfraredlightemissionandopticalamplification.Inthismid-termreport,wepresentourprogressinthesynthesis,characterization,andoptimizationofthePbSquantumdotglassfortheseapplications.First,wesuccessfullysynthesizedPbSquantumdotswithanaveragesizeof5nmusingahot-injectionmethod.Thequantumdotsweredispersedintoaborosilicateglassmatrixusingamelt-quenchingapproach.Theresultingquantumdotglasshadahightransparencyinthenear-infraredregion.Next,wecharacterizedtheopticalpropertiesofthequantumdotglassusingspectroscopictechniques.Weobservedabroadphotoluminescence(PL)peakcenteredat1.8μm,whichcorrespondstothebandgapofthePbSquantumdots.ThePLsignalexhibitedafullwidthathalfmaximum(FWHM)of~400nm,indicatingabroademissionspectrum.Inaddition,weobservedastronglinearabsorptionofthequantumdotglassinthewavelengthrangeof1.4-2.0μm,indicatingahighgaincoefficient.WealsoinvestigatedtheeffectsofvaryingthePbSconcentrationintheglassmatrixontheopticalpropertiesofthequantumdotglass.WefoundthatincreasingthePbSconcentrationresultedinaredshiftofthePLpeakandanincreaseinPLintensity.However,theFWHMoftheemissionspectrumremainedrelativelyconstant,indicatingthatthequantumdotglassmaintaineditsbroademissionspectrum.Finally,weexploredthepotentialofthePbSquantumdotglassforopticalamplification.Weconductedanumericalsimulationusingarateequationmodeltocalculatethegaincoefficientofthequantumdotglass.Wefoundthatthequantumdotglasshasahighgaincoefficientinthe1.5-1.8μmwavelengthrange,whichmakesitapromisingmaterialforopticalamplification.Insummary,wehavemadesignificantprogressinthesynthesisandcharacterizationofPbSquantumdotglassesforbroadbandinfraredlightemissionandopticalamplification.OurfindingssuggestthatthePbSquantumdotglasshasgreatpotentialforvariousapplicationsinthefieldofinfraredphotonics.