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1、Literature Review name:xiang yuchun Anodic aluminum oxide nanograting for back light trapping in thin c-Si solar cellsIntroductionSimulation modelResults and discussionConclusionsContents1.Introduction thin Si solar cellssaved materials, low costsPhotoelectric conversion efficiency is lowSurface tex

2、turing, nanowires, using surface plasmon effect, producing a multilayer coupling structure is a common method for surface light trappingsubwavelength grating with metal reflectors photonic crystals structures the influence of AAOs geometrical parameters and parametertolerance on light trappingAAO na

3、nograting and Ag thin layer2.Simulation modelFig. 1. Simulation model: d is the thickness of AAO, a is the distance between the AAO holes and h is the height of Si active layer3.Results and discussion Relationship between Jscand AAO parameters in simulationFig. 2. Relationship between Jsc and AAO ge

4、ometrical parameters: (a), (b), (c), and (d) is for the period of 100, 200, 300 and 400 nm respectively.3.Results and discussion AAO parameter optimization based on simulationFig. 3. Relationship between duty circle and Jscenhancement (here we set AAOsthickness as 78.6 nm, period as 314.28 nm, the d

5、uty circle varies from 0 to 1)Fig. 4. Electric field distribution with different duty circles (here the period is 314.28 nm, the thickness is 78.6 nm): (a) is for the duty circle of 0.5 and (b) is for the duty circleof 0.75.3.Results and discussionFig. 5. Relationship between Jscenhancement and AAO

6、period (here AAOs duty circle is set as 0.75, AAOs thickness is set as 78.6 nm, and AAOs period varies from 290 to 480 nm).Fig. 6. Relationship between Jsc enhancement and AAO thickness (here AAOs period is set as 314.28 nm, AAOs duty circle is set as 0.75, and AAOs thickness varies from 25 to 175 nm).3.Results and discussionFig. 7. Absorption spectrum for a 1000 nm thick Si solar cell with different lighttrapping structures3.Results and discussionFig. 8. Influence of AAOs parameter to