Ga Composition Dictates Macroscopic Photovoltaic and Nanoscopic Electrical Characteristics of Cu(In Ga )Se Thin Films via Grain-Boundary-Type Inversion


The photovoltaic performance of solar cells, based on a Cu(In $_{1-x}$Ga$_x$ )Se$_2$ (CIGS) absorber layer, is directly correlated with Ga composition. We have used scanning capacitance microscopy and conducting probe atomic force microscopy (CP-AFM) to provide microscopic electrical characterization of CIGS films with different Ga content. We found p- to n-type inversion at grain boundaries of the polycrystalline CIGS film, especially for Ga-poor compositions. The fraction of grain boundaries undergoing inversion dramatically decreased for Ga compositions above x = 0.32, the composition corresponding to a sharp efficiency drop of the complete cells. CP-AFM measurements showed a marked current drop at grain boundaries as the Ga composition rose above x = 0.32.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :Converged Network-Cloud Service Composition with End-to-End Performance Guarantee - 2018ABSTRACT:The crucial role of networking in cloud computing demand federated management of both computing and networking resources
PROJECT TITLE :Personalized and Diverse Task Composition in Crowdsourcing - 2018ABSTRACT:We have a tendency to study task composition in crowdsourcing and therefore the effect of personalization and diversity on performance. A
PROJECT TITLE : Mining Fashion Outfit Composition Using an End-to-End Deep Learning Approach on Set Data - 2017 ABSTRACT: Composing fashion outfits involves deep under-standing of fashion standards while incorporating creativity
PROJECT TITLE :Structural, Electrical, and UV Detection Properties of ZnO/Si Heterojunction DiodesABSTRACT:This paper reports the structural, electrical, and ultraviolet (UV) light-weight detection properties of n-ZnO/p-Si heterojunction
PROJECT TITLE: Data-Driven Composition for Service-Oriented Situational Web Applications - 2015 ABSTRACT: The convergence of Services Computing and Internet a pair of.0 gains a giant house of opportunities to compose “situational”

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry