In 1958, commercialization was
start by be used to Vanguard 1
satellite for power supply
In 1970, start enormous investment of commercialization and research
In 1977, development of amorphous solarcell
In 1991, invention of silicon solarcell mounted on the vehicle & start of the study about thinfilm pol
The GZO, MZO thinfilms were prepared on ZnO pre-sputtered glass substrate using RF Sputtering Technique. Morphological, Structural and Electrical properties of deposited films were investigated in comparison with pure ZnO Thinfilm by scanning electronic microscopy (SEM), Atomic force microscopy (AFM), X-ray diffraction (XRD), PL spectra and other electrical analytic method. SEM images showed al
cell experiment
Cell (Basic cell of the solarcell)
↓
Module (Form of assembling Cells)
↓
Array (Solar panel)
Hole moves toward
P type semiconductor
Electron moves toward
N type semiconductor
↓
Electrode formed
Current flows
↓
Solarcell generate
plastic film type solarcell
Prospect : Due to thinness and flexibleness, it is able to print. Cheap and variety u
Phosphor (Energy Converter)
Inorganic phosphor materials
“Classical” inorganic phosphors usually consist of a host lattice with activator ions doped into it in small concentrations, typically a few mole percent or less.
Host lattice & Activator ion
1st type : weak interaction (Ln3+)
2nd type: strong interaction ( Mn2+, Eu2+, Ce3+, Pb2+,Sb3+, Ce3+, MoO42-, NbO43-)
Activator (+ Sensit