--- /dev/null
+function Tl = ThDDGOXupdatelattice_temp(mesh,Dnodes,Tl,Tn,Tp,n,p,...
+ kappa,Egap,tn,tp,...
+ twn0,twp0,twn1,twp1,n0,p0)
+ %%
+ %% Tl = ThDDGOXupdatelattice_temp(mesh,Dnodes,Tl,Tn,Tp,n,p,...
+ %% kappa,Egap,tn,tp,...
+ %% twn0,twp0,twn1,twp1,n0,p0)
+
+ %% This file is part of
+ %%
+ %% SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
+ %% -------------------------------------------------------------------
+ %% Copyright (C) 2004-2006 Carlo de Falco
+ %%
+ %%
+ %%
+ %% SECS2D is free software; you can redistribute it and/or modify
+ %% it under the terms of the GNU General Public License as published by
+ %% the Free Software Foundation; either version 2 of the License, or
+ %% (at your option) any later version.
+ %%
+ %% SECS2D is distributed in the hope that it will be useful,
+ %% but WITHOUT ANY WARRANTY; without even the implied warranty of
+ %% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ %% GNU General Public License for more details.
+ %%
+ %% You should have received a copy of the GNU General Public License
+ %% along with SECS2D; If not, see <http://www.gnu.org/licenses/>.
+
+ Nnodes = columns(mesh.p);
+ Nelements = columns(mesh.t);
+ Varnodes = setdiff(1:Nnodes,Dnodes);
+
+ alpha = kappa*ones(Nelements,1);
+ gamma = Tl.^(-4/3);
+ eta = ones (Nnodes,1);
+
+ L = Uscharfettergummel3(mesh,alpha,gamma,eta,0);
+ MASS_LHSn = Ucompmass2(mesh,1.5*n./twn1,1./twn0);
+ MASS_LHSp = Ucompmass2(mesh,1.5*p./twp1,1./twp0);
+ LHS = L+MASS_LHSn+MASS_LHSp;
+
+
+ denom = (tp*(n+sqrt(n0.*p0))+tn*(p+sqrt(n0.*p0)));
+ U = (p.*n-p0.*n0)./denom;
+ RHS1 = Ucompconst(mesh,(Egap+1.5*(Tn + Tp)).*U,ones(Nelements,1));
+ RHS2n = Ucompconst(mesh,1.5*n.*Tn./twn1,1./twn0);
+ RHS2p = Ucompconst(mesh,1.5*p.*Tp./twp1,1./twp0);
+ RHS = RHS1 + RHS2n + RHS2p;
+
+ Tl(Varnodes) = LHS(Varnodes,Varnodes) \...
+ (RHS(Varnodes) - LHS(Varnodes,Dnodes)*Tl(Dnodes));