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082			_223 _aT 621.31244 _bR6961p CD
092	0		_223 _aT 621.31244 _bR6961p CD
100	1		_aRodríguez Ortiz, Elbannette _9298372
245	1	0	_aPigments from Sargassum sp. for low-cost photovoltaic solar cell performance / _h[electronic resource] _cby Elbannette Rodríguez Ortiz.
260			_c2021.
300			_a1 disco de computadora (9, 50 hojas) ; _c4¾ pulgadas (11.5 centímetros)
336			_2rdacontent _btxt _atexto
337			_2rdamedia _bc _acomputer
338			_2rdacarrier _bcd _acomputer disc
502			_aThesis (Master in Science- Chemistry) -- Pontificia Universidad Católica de Puerto Rico, 2021.
504			_aBibliographical references : leaves 35-40.
520	3		_aDye-Sensitized Solar Cell using natural pigments is a low-cost, easy fabrication, and ecofriendly technology. Natural pigments like Chlorophyll and Fucoxanthin are part of the composition of Sargassum sp. which can be a problem at high concentrations on the Caribbean beaches. Both pigments increase the light absorption during the photosynthesis process. The use of Chlorophyll and Fucoxanthin extracted from Sargassum sp. as sensitizer is an innovative idea. This project seeks to evaluate these natural pigments taking into consideration photophysical properties such as optical absorption and emission spectrum. The structure composition of these pigments has conjugate bonds and alkoxylate functional groups, which act as the anchoring site to the semiconductor surface (TiO2). The affinity of alkoxylate groups for the semiconductor surface is expected that can sensitize the wide bandgap semiconductor material and improve the photosensitization process. A synergetic effect of both pigments should enhance panchromatic light absorption. The optoelectronic parameters of extracted dyes were obtained using the J-V curve that gives the principal parameters for solar cell characterization (Jsc,Voc, FF and %ղ ). As a result of the synergetic effect, the constructed cell using mixed dyes (1:1) as a sensitizer had the maximum efficiency (0.0025%).
538			_aDisc characteristics : CD-ROM.
538			_aSystem requirements : PC, CD-ROM reader and Adobe Acrobat Reader.
610	2	7	_9294920 _aPontificia Universidad Católica de Puerto Rico _xDissertations. _2Local
650		0	_9150778 _aPhotovoltaic power generation _xResearch _zPuerto Rico
650		0	_aSargassum _xResearch _zPuerto Rico _9298373
710	2		_aPontificia Universidad Católica de Puerto Rico. _bColegio de Ciencias. _bDepartamento de Química _9294919
942			_2ddc _c3 _e23 _hT 621.31244 _iR6961p _mCD _n0
999			_c296424 _d296424