Abstract
This chapter treats nanowire FETs as applied to the green energy. The discussion is carried out from two perspectives, namely the renewable energy and the efficiency of energy consumption. In this context, the nanowire tunneling field effect transistor (NTFET) is considered as the low power device and its ON and OFF states are elaborated, based upon the voltage controlled energy band. Moreover, the operation of NTFETs is analyzed in terms of the size and shape of the nanowire, doping, multi-junction structure, and the materials used. In addition, nanowire solar cell is elaborated based upon the photo-generation, separation, and collection of e-h pairs. In particular, the enhanced absorption of solar radiation is highlighted via decreased reflectance, light trapping, and the resonance effect. Additional, the collection efficiency of photo-generated e-h pairs in nanowires is discussed based upon the cell structure, decoupling of the absorption and collection processes, and the types of junctions. Finally the process flows for producing vertical nanowires are presented, together with the fabrication of the nanowire photo-cells therein.
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Abbreviations
- CMOS:
-
Complementary MOS
- FET:
-
Field-effect transistor
- SS:
-
Subthreshold swing
- IMOS:
-
Impact-ionization MOS
- TFET:
-
Tunneling field-effect transistor
- SOI:
-
Silicon-on-insulator
- SON:
-
Silicon-on-nothing
- LMR:
-
Leaky-mode resonance
- VLS:
-
Vapor–liquid–solid
- AAO:
-
Anodic aluminum oxide
- CIGS:
-
Copper indium gallium selenide
- VSS:
-
Vapor–solid–solid
- PECVD:
-
Plasma-enhanced chemical vapor deposition
- ITO:
-
Indium tin oxide
- EQE:
-
External quantum efficiency
- MOCVD:
-
Metal–organic chemical vapor deposition
- MBE:
-
Molecular beam epitaxy
- CBE:
-
Chemical beam epitaxy
- CVD:
-
Chemical vapor deposition
- PCBM:
-
Phenyl-C61-butyric acid methyl ester
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Park, BG. (2014). Green Energy Devices. In: Kim, D., Jeong, YH. (eds) Nanowire Field Effect Transistors: Principles and Applications. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8124-9_7
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