Table 3 Fitted composition-dependence of the CL parameters (Eq. 3) in the position range of 0–8 mm (corresponding to \(x=0.0 \ldots 0.4\)) for each sample.

From: Micro-combinatorial sampling of the optical properties of hydrogenated amorphous \(\hbox {Si}_{1-x}\,\hbox {Ge}_{{x}}\) for the entire range of compositions towards a database for optoelectronics

Sample

\(p_H/p = 0\)

\(p_H/p = 0.05\)

\(p_H/p = 0.1\)

\(p_H/p = 0.2\)

From Ref.54

Parameter

\(\mathbf {(p_1,p_2,p_3)}\) parameters for \(\mathbf {y=p_1\cdot x^2+p_2\cdot x+p_3}\), \(\hbox {R}^2\)

A (eV)

(14.03,-37.7, 117.46), 0.97

(6.73, -11.69, 95.58), 0.98

(30.26, -44.89, 103.50), 0.97

(27.13, -46.89, 107.86), 0.99

(18.4, -42.5, 92.9), 0.74

\(\Gamma \) (eV)

(− 0.02, 0.53, 2.70), 0.99

(0.03, 0.40, 2.94), 0.99

(− 0.04, 0.52, 3.02), 0.99

(− 0.25, 0.92, 2.86), 0.99

(− 2.33, 2.26, 2.54), 0.97

\(\hbox {E}_0\) (eV)

(− 0.12, 0.33, 3.68), 0.99

(− 0.03, 9, 52*, 3.72), 0.84

(− 0.22, 0.30, 3.73), 0.96

(− 0.24, 0.41, 3.63), 0.98

\(\hbox {E}_g^{CL}\) (eV)

(0.06, − 0.14, 0.944), 0.85

(0.05, − 0.21, 1.15), 0.98

(− 0.03, − 0.15, 1.33), 0.99

(− 0.06, − 0.16, 1.43), 0.99

(0.08, − 1.09, 1.70), 0.99

\(\hbox {E}_p\) (eV)

(0.22, − 1.16, 1.99), 0.98

(0.13, − 0.49, 1.33), 0.99

(0.70, − 1.35, 1.61), 0.99

(0.63, − 1.39, 1.81), 0.99

(0.33, − 2.01, 1.35), 0.96

  1. Results from Ref.54 are also presented. The values marked by ‘*’ are multiplied by \(10^3\).