73 
Anexos 
Anexo I. Medición de las características de salida  
Una vez que se ha montado el sistema de medición con la configuración 
recomendada de la sección 2.2.3, se utiliza la siguiente secuencia de programación 
en Test Script Builder para la obtención de las características de salida para 
diferentes valores de voltaje de puerta (Vg): 
--Se reinicia los instrumentos, la conexión TSP-Link,y se limpian los 
buffers. 
tsplink.initialize() 
reset() 
node[2].reset() 
state = tsplink.state 
if state ~= "online" then 
print("Error:\n-Revisar que los dispositivos tienen diferente numero de 
nodo") 
print("-Revisar que todos los dispositivos estan conectados 
correctamente\n") 
return 
end 
--Se programa el número de puntos de medición  
num = 51 
--############ Configuración (Drenador) SMU 1 ############# 
smu.source.func = smu.FUNC_DC_VOLTAGE 
smu.source.ilimit.level = 300e-3 
smu.source.autorange = smu.ON 
smu.measure.func = smu.FUNC_DC_CURRENT 
smu.measure.autorange = smu.ON 
smu.measure.terminals = smu.TERMINALS_FRONT 
--Se programa el rango del barrido del voltaje Vds 
smu.source.sweeplinear('MOSFET', -1, 1, num, 0.001) 
--############ configuración (Gate) SMU 2 ############# 
node[2].smu.source.func = node[2].smu.FUNC_DC_VOLTAGE 
node[2].smu.source.autorange = node[2].smu.ON 
node[2].smu.source.ilimit.level = 100e-3 
node[2].smu.measure.func = node[2].smu.FUNC_DC_CURRENT 
74 
node[2].smu.measure.autorange = node[2].smu.ON 
node[2].smu.measure.terminals = node[2].smu.TERMINALS_FRONT 
node[2].smu.source.output = node[2].smu.ON 
readings = {} 
sourcevalues = {} 
iteration = 0 
steppoints = 4 
--Se programan los valores de Vg (En este caso 0.2V, 0.3V, 0.4V y 0.5V) 
for i = 2, 5 do 
node[2].smu.source.level = i/10 
delay(0.01) 
trigger.model.initiate() 
waitcomplete() 
for j = 1, num do 
readings[j+iteration*num] = defbuffer1[j] 
sourcevalues[j+iteration*num] = defbuffer1.sourcevalues[j] 
end 
iteration = iteration+1 
end 
node[2].smu.source.output = node[2].smu.OFF 
if defbuffer1.n == 0 then 
print("\nNo readings in buffer\n") 
else 
for k=1,num do 
--Se imprimen los valore de Vds Vs Ids para cada valor de Vg aplicado 
print(string.format("%f\t%f\t\t%f\t%f\t\t%f\t%f\t\t%f\t%f", 
sourcevalues[k], 
readings[k], sourcevalues[k+num], readings[k+num], sourcevalues[k+num*2], 
readings[k+num*2], sourcevalues[k+num*3], readings[k+num*3])) 
end 
end 
Finalmente, se exportan los datos obtenidos al Excel y/o Origin para para su 
posterior procesamiento y análisis.
75 
 
Anexo II. Medición de las Caracteristicas de transferencia  
Una vez que se ha montado el sistema de medición en la configuración 
recomendada de la sección 2.2.3 se utiliza la siguiente secuencia en el programa 
KickStart para la obtención de las características de transferencia: 
- Se selecciona el instrumento MODEL 2450:1 (Es importante configurar al 
SMU 1 como nodo 1 y al SMU 2 como nodo 2 como paso previo). 
- Se selecciona el tipo de prueba o test en este caso Caracterización I-V. 
- Se programan los parámetros del SMU 1 que controlan el voltaje Vds que se 
aplica al transistor como sigue: 
 
- Se programan los parámetros del SMU 2 que controlan el voltaje Vg que se 
aplica al transistor como sigue: 
Vds Ids 
76 
 
 
- Se ejecuta la prueba. 
- Se exportan los datos obtenidos en Excel y/o Origin y se guardan para su 
posterior análisis. 
 
 
  
Barrido de Vg 
Vg 
En estas pestañas se muestran los datos de los parámetros 
seleccionados en tablas y gráficos respectivamente 
77 
 
Anexo III. Especificaciones técnicas del grafeno y los 
sustratos utilizados 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
78 
 
  
79 
 
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