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50ohm-contents-dl/contents/drawings/857.tex
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% 2024 de DL9MJ
\begin{circuitikz}
\draw(0,0) -- ++(3,0);
\fill[DARCred!50] (3,-1) rectangle ++(1.5,2);
\fill[DARCgray] (4.5,-1) rectangle ++(0.5,2);
\fill[DARCblue!30](5.5,-1) rectangle ++(1.5,2);
\fill[DARCgray] (5,-1) rectangle ++(0.5,2);
\draw[DARCred, -Triangle] (4.5,0.75) -- (5.75,0.75);
\draw[DARCblue, -Triangle] (5.5,0.50) -- (4.25,0.5);
\draw[DARCorange, -Triangle] (5.5,-0.75) -- (4.5,-0.75);
\draw(5,1.5) node[](){\footnotesize Diffusion};
\draw(3,-1) rectangle ++(2,2);
\draw(5,-1) rectangle ++(2,2);
\draw(7,0) -- ++(3,0);
\draw (4,1.5) node[](){\Large P};
\draw (6,1.5) node[](){\Large N};
% Löcher
\draw[DARCred, very thick] (3.5, 0.5) circle (3pt);
\draw[DARCred, very thick] (4.0, 0.5) circle (3pt);
\draw[DARCred, very thick] (3.5, 0.0) circle (3pt);
\draw[DARCred, very thick] (4.0, 0.0) circle (3pt);
\draw[DARCred, very thick] (3.5,-0.5) circle (3pt);
\draw[DARCred, very thick] (4.0,-0.5) circle (3pt);
% Elektronen
\fill[DARCblue, very thick] (6.0, 0.5) circle (3pt);
\fill[DARCblue, very thick] (6.5, 0.5) circle (3pt);
\fill[DARCblue, very thick] (6.0, 0.0) circle (3pt);
\fill[DARCblue, very thick] (6.5, 0.0) circle (3pt);
\fill[DARCblue, very thick] (6.0,-0.5) circle (3pt);
\fill[DARCblue, very thick] (6.5,-0.5) circle (3pt);
% Ionen:
\draw[DARCred, very thick] (5.25,-0.0) node[](){\textcolor{DARCred}{$+$}};
\draw[DARCblue, very thick] (4.75,-0.0) node[](){\textcolor{DARCblue}{$-$}};
% E
\draw(5,-0.5) node[fill=DARCgray](){\textcolor{DARCorange}{$E$}};
%
\draw(4.0,-2) to [stroke diode] ++ (2,0);
\end{circuitikz}