diff --git a/src/14_doping_and_devices.md b/src/14_doping_and_devices.md
index ebeda3db2bdabcbd497e95d1e49e42dcb8935803..bae26b374d26111142f0114ad917c2ded79c714d 100644
--- a/src/14_doping_and_devices.md
+++ b/src/14_doping_and_devices.md
@@ -224,3 +224,13 @@ Conductance combines the contributions of electrons and holes, and allows to det
 A $pn$-junction has a **depletion layer** in its middle with the potential in a $pn$-junction having the following shape (where the transition region is made out of two parabolas):
 
 ![](figures/band_diagram_solution.svg)
+
+## Exercises
+
+### Exercise 1: Crossover between extrinsic and intrinsic regimes
+
+### Exercise 2: Donor ionization
+
+### Exercise 3: Performance of a diode
+
+### Exercise 4: Quantum well in detail
\ No newline at end of file