000			03508nam a2200421 a 4500
003			EG-GiCUC
005			20260523140509.0
008			220620s2021 ua ao frm 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng _beng _bara
049			_aDeposit
082	0	4	_a629
092			_a629 _221
097			_aPh.D
099			_aCai01.24.11.Ph.D.2021.Ra.N
100	0		_aRamy Ramadan Mostafa Elbashar _epreparation.
245	1	0	_aNanostructured Energy Harvesters for Green Electric Power Generation / _cRamy Ramadan Mostafa Elbashar ; Supervised Prof.Dr. Yehia Abdelhamed Badr, Prof.Dr.Salah Sabry Obayya, Prof.Dr. Salem Farag Salam Hegazy
246	1	5	_aحاصدات الطاقة النانومترية لتوليد طاقة كهربائية خضراء
264		0	_c2021
300			_a181 P . : _bcharts,photographes ; _c25cm _eCD.
336			_atext _2rda content
337			_atext _2rdamedia
338			_atext _2rda content
502			_aThesis (Ph.D.) - Cairo University - National Institute of Laser Enhanced Science - Department of laser application in engineering
504			_aBibliography: p. 207-192.
520			_aConventional energy sources such as natural gas, oil, coal, or nuclear are limited and highly depleted. Today, energy based on {u201E}green{u201F} resources has attracted considerable interest and investment worldwide, as a viable alternative to the use of polluting fossil fuels. Solar energy is the most abundant source of such {u201E}green{u201F} renewable energy, coming in its two forms: light and heat. The photovoltaic (PV) solar cell (SC) is one of the predominant solar energy harvesting devices to convert light directly to electricity. Currently, bulk crystalline silicon (C-Si) photovoltaic modules have ~90 % of the global PV market. Silicon (Si) is one of the largest broadband light absorbing materials, where the power conversion efficiency (PCE) of a planar C-Si SC reaches 22 %. However, C-Si SC suffers from high cost. The second generation SC technology, based on low-purity thin-film (TF) materials, has emerged to reduce the high cost of the traditional C-Si SC and yet, the conversion efficiency is only ~12 %, due to the small optical path length. The third generation of solar cell technology has improved the light absorption in TF-SC using light trapping techniques. This approach increases the optical path length and promotes the generation of e-h carriers, which elevates the efficiency of TF SCs. Consequently, an efficient TF SC can be designed using less active material with reduced cost. Nanowires (NW) are highly promising nanostructures that have unique optical and electrical characteristics compared to TF SCs. Such NWs have a number of merits, such as reduction in reflection, improvement in trapping, and consumption of less material
530			_aIssued also as CD
546			_aText in English and abstract in Arabic & English.
650		7	_aPhilosophy
653		1	_aNnostructured materials _aEnergy _aPower Generation
700	0		_aSalah Sabry Obayya _ethesis advisor.
700	0		_aSalem Farag Salam Hegazy _ethesis advisor.
700	0		_aYehia Abdelhamed Badr _ethesis advisor.
900			_b01-01-2021 _cYehia Abdelhamed Badr _cSalah Sabry Obayya _cSalem Farag Salam Hegazy _UCairo Univsersity _FNational Institute of Laser Enhanced Science (NILES) _DDepartment of Engineering application of Laser
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c84489