The application of molybdenum oxide in the photovoltaic field is gaining traction as this material can be deployed in doping-free heterojunction solar cells in the role of hole selective contact.For modeling-based opt...The application of molybdenum oxide in the photovoltaic field is gaining traction as this material can be deployed in doping-free heterojunction solar cells in the role of hole selective contact.For modeling-based optimization of such contact,knowledge of the molybdenum oxide defect density of states(DOS)is crucial.In this paper,we report a method to extract the defect density through nondestructive optical measures,including the contribution given by small polaron optical transitions.The presence of defects related to oxygen-vacancy and of polaron is supported by the results of our opto-electrical characterizations along with the evaluation of previous observations.As part of the study,molybdenum oxide samples have been evaluated after post-deposition thermal treatments.Quantitative results are in agreement with the result of density functional theory showing the presence of a defect band fixed at 1.1 eV below the conduction band edge of the oxide.Moreover,the distribution of defects is affected by post-deposition treatment.展开更多
Erratum to Nano Research 2020,13(12):3416–3424 https://doi.org/10.1007/s12274-020-3029-9 Ref.[56]was unfortunately wrong,Instead of[56]Corless,R.M.;Gonnet,G.H.;Hare,D.E.G.;Jeffrey,D.J.;Knuth,D.E.On the Lambert W func...Erratum to Nano Research 2020,13(12):3416–3424 https://doi.org/10.1007/s12274-020-3029-9 Ref.[56]was unfortunately wrong,Instead of[56]Corless,R.M.;Gonnet,G.H.;Hare,D.E.G.;Jeffrey,D.J.;Knuth,D.E.On the Lambert W function.Adv.Comput.Math.1996,5,329–359.It should be changed to Biswas,R.K.;Khan,P.;Mukherjee,S.;Mukhopadhyay,A.K.;Ghosh,J.;Muraleedharan,K.Study of short range structure of amorphous Silica from PDF using Ag radiation in laboratory XRD system,RAMAN and NEXAFS.J.Non.Cryst.Solids 2018,488,1–9.展开更多
文摘The application of molybdenum oxide in the photovoltaic field is gaining traction as this material can be deployed in doping-free heterojunction solar cells in the role of hole selective contact.For modeling-based optimization of such contact,knowledge of the molybdenum oxide defect density of states(DOS)is crucial.In this paper,we report a method to extract the defect density through nondestructive optical measures,including the contribution given by small polaron optical transitions.The presence of defects related to oxygen-vacancy and of polaron is supported by the results of our opto-electrical characterizations along with the evaluation of previous observations.As part of the study,molybdenum oxide samples have been evaluated after post-deposition thermal treatments.Quantitative results are in agreement with the result of density functional theory showing the presence of a defect band fixed at 1.1 eV below the conduction band edge of the oxide.Moreover,the distribution of defects is affected by post-deposition treatment.
文摘Erratum to Nano Research 2020,13(12):3416–3424 https://doi.org/10.1007/s12274-020-3029-9 Ref.[56]was unfortunately wrong,Instead of[56]Corless,R.M.;Gonnet,G.H.;Hare,D.E.G.;Jeffrey,D.J.;Knuth,D.E.On the Lambert W function.Adv.Comput.Math.1996,5,329–359.It should be changed to Biswas,R.K.;Khan,P.;Mukherjee,S.;Mukhopadhyay,A.K.;Ghosh,J.;Muraleedharan,K.Study of short range structure of amorphous Silica from PDF using Ag radiation in laboratory XRD system,RAMAN and NEXAFS.J.Non.Cryst.Solids 2018,488,1–9.
