diff --git a/src/main.py b/src/main.py
index 92c1e46..c16b976 100644
--- a/src/main.py
+++ b/src/main.py
@@ -135,9 +135,15 @@ def make_nexus_schema_dictionary(substrate_object, layers):
                 "name": substrate_object.name,
                 "chemical_formula" : substrate_object.get_compound_formula(apikey),
                 "orientation" : substrate_object.orientation,
-                "miscut_angle" : substrate_object.miscut_angle,
+                "miscut_angle" : {
+                    "value": substrate_object.miscut_angle,
+                    "units": substrate_object.miscut_angle_unit
+                },
                 "miscut_direction" : substrate_object.miscut_direction,
-                "thickness" : substrate_object.thickness,
+                "thickness" : {
+                    "value": substrate_object.thickness,
+                    "units": substrate_object.thickness_unit,
+                },
                 "dimensions" : substrate_object.dimensions,
                 "surface_treatment" : substrate_object.surface_treatment,
                 "manufacturer" : substrate_object.manufacturer,
@@ -157,11 +163,14 @@ def make_nexus_schema_dictionary(substrate_object, layers):
             "description" : target_object.description,
             "shape" : target_object.shape,
             "dimensions" : target_object.dimensions,
-            "thickness" : target_object.thickness,
+            "thickness" : {
+                "value": target_object.thickness,
+                "units": target_object.thickness_unit,
+            },
             "solid_form" : target_object.solid_form,
             "manufacturer" : target_object.manufacturer,
+            "batch_id" : target_object.name,
             # TO-DO: currently not available:
-            # "batch_id" : target_object.batch_id,
         }
         multilayer[name] = {
             "target": target_dict,
@@ -169,17 +178,44 @@ def make_nexus_schema_dictionary(substrate_object, layers):
             "operator": layer.operator,
             "description": layer.description,
             "number_of_pulses": layer.number_of_pulses,
-            "deposition_time": layer.deposition_time,
-            "temperature": layer.temperature,
+            "deposition_time": {
+                "value": layer.deposition_time,
+                "units": layer.deposition_time_unit,
+            },
+            "temperature": {
+                "value": layer.temperature,
+                "units": layer.temperature_unit,
+            },
             "heating_method": layer.heating_method,
-            "layer_thickness": layer.layer_thickness,
+            "layer_thickness": {
+                "value": layer.layer_thickness,
+                "units": layer.layer_thickness_unit,
+            },
             "buffer_gas": layer.buffer_gas,
-            "process_pressure": layer.process_pressure,
-            "heater_target_distance": layer.heater_target_distance,
-            "repetition_rate": layer.repetition_rate,
-            "laser_fluence": layer.laser_fluence,
-            "laser_spot_area": layer.laser_spot_area,
-            "laser_energy": layer.laser_energy,
+            "process_pressure": {
+                "value": layer.process_pressure,
+                "units": layer.process_pressure_unit,
+            },
+            "heater_target_distance": {
+                "value": layer.heater_target_distance,
+                "units": layer.heater_target_distance_unit,
+            },
+            "repetition_rate": {
+                "value": layer.repetition_rate,
+                "units": layer.repetition_rate_unit,
+            },
+            "laser_fluence": {
+                "value": layer.laser_fluence,
+                "units": layer.laser_fluence_unit,
+            },
+            "laser_spot_area": {
+                "value": layer.laser_spot_area,
+                "units": layer.laser_spot_area_unit,
+            },
+            "laser_energy": {
+                "value": layer.laser_energy,
+                "units": layer.laser_energy_unit,
+            },
             "laser_rastering": {
                 "geometry": layer.laser_rastering_geometry,
                 "positions": layer.laser_rastering_positions,
@@ -187,15 +223,33 @@ def make_nexus_schema_dictionary(substrate_object, layers):
             },
             "pre_annealing": {
                 "ambient_gas": layer.pre_annealing_ambient_gas,
-                "pressure": layer.pre_annealing_pressure,
-                "temperature": layer.pre_annealing_temperature,
-                "duration": layer.pre_annealing_duration,
+                "pressure": {
+                    "value": layer.pre_annealing_pressure,
+                    "units": layer.pre_annealing_pressure_unit,
+                },
+                "temperature": {
+                    "value": layer.pre_annealing_temperature,
+                    "units": layer.pre_annealing_temperature_unit,
+                },
+                "duration": {
+                    "value": layer.pre_annealing_duration,
+                    "units": layer.pre_annealing_duration_unit,
+                },
             },
             "post_annealing": {
                 "ambient_gas": layer.post_annealing_ambient_gas,
-                "pressure": layer.post_annealing_pressure,
-                "temperature": layer.post_annealing_temperature,
-                "duration": layer.post_annealing_duration,
+                "pressure": {
+                    "value": layer.post_annealing_pressure,
+                    "units": layer.post_annealing_pressure_unit,
+                },
+                "temperature": {
+                    "value": layer.post_annealing_temperature,
+                    "units": layer.post_annealing_temperature_unit,
+                },
+                "duration": {
+                    "value": layer.post_annealing_duration,
+                    "units": layer.post_annealing_duration_unit,
+                },
             },
         }
     return pld_fabrication