New Results in Optical Modelling of Quantum Well Solar Cells

<table>(a) Absorption coefficient of <svg height="16.450001" id="M34" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 80.800003 16.450001" width="80.800003" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.017,-0,0,-.017,23.438,12.162)"><path d="M692 302v-28q-45 -6 -54.5 -17t-9.5 -55v-86q0 -62 7 -95q-7 -2 -32 -7.5l-37 -8l-35.5 -7.5t-40.5 -7t-38.5 -4t-40.5 -2q-165 0 -266 93t-101 243q0 84 32 151t86 108t121.5 63t142.5 22q29 0 62.5 -4t52 -7.5t47.5 -10.5t31 -7l15 -156l-28 -6q-17 87 -66.5 121.5
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<g transform="matrix(.017,-0,0,-.017,63.025,12.162)"><use xlink:href="#x41"></use></g><g transform="matrix(.017,-0,0,-.017,74.499,12.162)"><path d="M319 325l-25 -7q-33 99 -103 99q-29 0 -47 -19.5t-18 -49.5t22 -49.5t62 -36.5q63 -26 95 -57t32 -79q0 -64 -50 -101t-115 -37q-35 0 -67.5 10.5t-46.5 23.5q-5 11 -11 51t-6 67l27 5q14 -53 46.5 -88.5t75.5 -35.5q29 0 50 19.5t21 50.5t-19.5 51.5t-59.5 39.5
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</svg> depending on wavelength; <svg height="7.9499998" id="M35" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.625 7.9499998" width="9.625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> is the curves parameter. (b) Absorption coefficient in GaAs crystal; the ternary compound Al<sub>0.5</sub>Ga<sub>0.5</sub>As is calculated using axes translation in MQW system.</table>

International Journal of Photoenergy

New Results in Optical Modelling of Quantum Well Solar Cells

Figure 6