where ΔR = 0.166 nm is the thickness of electron layer at the wall of free volume hole [24 26].
To explain this, in 1983 Stanford physicist Robert Laughlin proposed that quasi-particles form in the electron layer when the electrons team up with magnetic vortices, tiny whirlpools of magnetism.
To sieve these quasi-particles from the electron layer, they directed the charges toward a very narrow channel which allowed the one-third-charge quasi-particles through, while reflecting a small number of one-fifth-charge particles back.
The resulting electric field is directed toward the earth (the electron layer may correspond to the inverted V in the ionosphere); b an example of substorm onset.
Due to the four electrons in the outer electron layer (Fig. 1a, b), carbon atoms have a valence of four and can be linked via single, double or triple covalent bonds, or also with other elements.
For the gas of massless particles, rs does not depend on electron density and equals to rs = e2/εvF (effectively ε = (ε1 + ε2)/2 when 2D electron layer is surrounded by two dielectric half-spaces with permittivities ε1 and ε2).
In general, PSCs are made up of compact layer, electron transfer layer, perovskite absorber layer, and hole transfer layer (HTL).
Then various components, including the light harvesting layer, electron transporting layer (ETL), hole-transporting layer (HTL), and possible materials developed for each layer are discussed.
The roles of the PCBM film, CH3NH3PbI3 film, and PEDOT PSS film in the cell structure is electron transport layer, active layer, and hole transport layer, respectively.
