What is Epitaxial Growth? Why do we care about Modeling Epitaxial Growth? Two Quantum Well System gateφ=φo modulationally doped layer (a (a) confined 70-00444 InP Electron(qubit) InGaAs InP 2DEG InGaAs InP conductor=φ1 >Epitaxial growth produces crystals of the highest quality which is important for making semi-conductor devices. >Many devices for opto-electronic application are multilayer structures grown by epitaxial growth.So theoretical understanding of epitaxial growth will help improve performance,and produce new structures. >However,modeling epitaxial growth is extremely challenging due to the wide range of length and time scales. Atomic Motion Time Scale~103 seconds Length Scale:Angstrom Island Growth Time Scale seconds Length Scale:Microns9750-00-444 (a) (a) (h) (f) (e) (b) (c) (i) (g) (d) What is Epitaxial Growth? Why do we care about Modeling Epitaxial Growth? Atomic Motion Time Scale ~ 10-13 seconds Length Scale: Angstrom Island Growth Time Scale ~ seconds Length Scale: Microns o ➢Epitaxial growth produces crystals of the highest quality which is important for making semi-conductor devices. ➢Many devices for opto-electronic application are multilayer structures grown by epitaxial growth. So theoretical understanding of epitaxial growth will help improve performance, and produce new structures. ➢However, modeling epitaxial growth is extremely challenging due to the wide range of length and time scales