Light absorption in coated ellipsoidal quantum lenses
In the framework of adiabatic approximation the energy states of electron and direct light absorption in coated ellipsoidal quantum lens is investigated. Analytical expressions for particle energy spectrum is obtained taking into account that electron effective masses are different in the coat and i...
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| Veröffentlicht in: | Journal of materials science. Materials in electronics 2009-06, Vol.20 (6), p.491-498 |
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| container_end_page | 498 |
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| container_issue | 6 |
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| container_title | Journal of materials science. Materials in electronics |
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| creator | Tshantshapanyan, Ani A. Dvoyan, Karen G. Kazaryan, Eduard M. |
| description | In the framework of adiabatic approximation the energy states of electron and direct light absorption in coated ellipsoidal quantum lens is investigated. Analytical expressions for particle energy spectrum is obtained taking into account that electron effective masses are different in the coat and in quantum lens. Obtained results were applied for the case of rectangular quantum well of finite height. The investigation of energy level dependence on geometrical parameters of quantum lens was performed. In particular, it has been shown, that the particle energy is equidistant for both ellipsoidal and spherical segment cases, and dependence of energy on geometrical parameters has root character. Influence of the presence of a coating at a quantum lens on direct light absorption is investigated. Dependence of edge of absorption on geometrical parameters of a quantum lens and coating is obtained. The selection rules as in case of presence so and at absence of a coating for both ellipsoidal and spherical segment cases were derived. |
| doi_str_mv | 10.1007/s10854-008-9753-7 |
| format | Article |
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Analytical expressions for particle energy spectrum is obtained taking into account that electron effective masses are different in the coat and in quantum lens. Obtained results were applied for the case of rectangular quantum well of finite height. The investigation of energy level dependence on geometrical parameters of quantum lens was performed. In particular, it has been shown, that the particle energy is equidistant for both ellipsoidal and spherical segment cases, and dependence of energy on geometrical parameters has root character. Influence of the presence of a coating at a quantum lens on direct light absorption is investigated. Dependence of edge of absorption on geometrical parameters of a quantum lens and coating is obtained. 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Materials in electronics</title><addtitle>J Mater Sci: Mater Electron</addtitle><description>In the framework of adiabatic approximation the energy states of electron and direct light absorption in coated ellipsoidal quantum lens is investigated. Analytical expressions for particle energy spectrum is obtained taking into account that electron effective masses are different in the coat and in quantum lens. Obtained results were applied for the case of rectangular quantum well of finite height. The investigation of energy level dependence on geometrical parameters of quantum lens was performed. In particular, it has been shown, that the particle energy is equidistant for both ellipsoidal and spherical segment cases, and dependence of energy on geometrical parameters has root character. Influence of the presence of a coating at a quantum lens on direct light absorption is investigated. Dependence of edge of absorption on geometrical parameters of a quantum lens and coating is obtained. The selection rules as in case of presence so and at absence of a coating for both ellipsoidal and spherical segment cases were derived.</description><subject>Applied sciences</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Compound structure devices</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Investigations</subject><subject>Materials Science</subject><subject>Metals. Metallurgy</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Optical and Electronic Materials</subject><subject>Physics</subject><subject>Production techniques</subject><subject>Quantum dots</subject><subject>Quantum wells</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. 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| subjects | Applied sciences Characterization and Evaluation of Materials Chemistry and Materials Science Compound structure devices Cross-disciplinary physics: materials science rheology Electronics Exact sciences and technology Investigations Materials Science Metals. Metallurgy Nanoscale materials and structures: fabrication and characterization Optical and Electronic Materials Physics Production techniques Quantum dots Quantum wells Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Surface treatment |
| title | Light absorption in coated ellipsoidal quantum lenses |
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