def da_options():
from solcore.state import State
options = State()
wl = np.linspace(290, 700, 150) * 1e-9
options.T = np.random.uniform(250, 350)
options.wavelength = wl
options.light_source = da_light_source()
options.position = None
options.internal_voltages = np.linspace(-6, 4, 20)
options.da_mode = 'bvp'
return options
import numpy as np
from scipy.interpolate import interp1d
from scipy.integrate import solve_bvp, quad_vec
from functools import partial
from solcore.constants import kb, q
from solcore.science_tracker import science_reference
from solcore.state import State
from solcore.light_source import LightSource
da_options = State()
da_options.da_mode = 'bvp'
def identify_layers(junction):
# First we have to figure out if we are talking about a PN, NP, PIN or NIP junction
# We search for the emitter and check if it is n-type or p-type
idx = 0
pn_or_np = 'pn'
homojunction = True
for layer in junction:
if layer.role.lower() != 'emitter':
idx += 1
else:
Na = 0
Nd = 0
if hasattr(layer.material, 'Na'): Na = layer.material.Na
if hasattr(layer.material, 'Nd'): Nd = layer.material.Nd
if Na < Nd:
pn_or_np = "np"