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Surface and bulk passivation of multicrystalline silicon solar cells by ...

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APPENDIX II<br />

PROGRAMS TO CALCULATE SRV USING SRH FORMALISM<br />

P-TYPE<br />

defsng a-z<br />

declare function nt(E)<br />

declare function pt(Ε)<br />

declare function Lx (smin, E)<br />

declare function LINT(smin)<br />

dim shared Qf, Dit, vth, Nac, Ndc, run, mup, p0, no, stepsize, ft<br />

dim shared phis(10000), ns(10000), ps(10000), fa(10000, 10000), fd(10000,<br />

10000)<br />

dim shared A (10000) , B(10000), E (10000) , F (10000) , Qi t (10000) ,<br />

Qsi(10000), Qo(10000)<br />

const q = 1. 602e-19<br />

const k = 1.381e-23<br />

const T = 300<br />

const beta = q / k / T<br />

const eo = 8.85e-14<br />

const eox = 3. 9<br />

const esi = 11.7<br />

const ni = 1.5e10<br />

const dE1 = -. 55<br />

const dΕ2 = .55<br />

const Ei = (dE1 + dΕ2) / 2<br />

const D= (2 * k * Τ * ni * eo * esi) .5<br />

const TOL = . 001<br />

180

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