This paper represents a comparison of theoretical efficiencies of three and four layer multijunction solar cell and the effects of varying the bottom layer material. Different types of solar cell models are mentioned here. ...

This paper presents a study on low cost solar powered wheelchair for disabled people of Bangladesh. The main components are: the wheelchair structure, the solar panels, the DC motors, the controlling circuits, microcontroller ...

This paper represents Theoretical Efficiency of AlAs/GaAs/GaAs0.9Bi0.085 based new multijunction solar cell and effects of solar radiation and sun concentration on it. A new solar cell configuration has been introduced in ...