Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: Organic semiconductors are used to manufacture thin film (smaller than 50nm)
photovoltaic devices. Layer thicknesses are calibrated with the use of an AFM
and QCM crystals. An in house method is prepared for solar cell comparison,
and AM1.5G (one sun equivalent) testing is performed on manufactured solar
cells. The importance of layer thickness and the exciton blocking layers are also
highlighted.
Numerical modelling of the optical electric field amplitude is done by the
transfer matrix method, to take optical interference effects into consideration. The
photo generated current was extracted as a function of absorption with varying
position in the active layers, and used to excite a general model for organic photovoltaic
cells. / AFRIKAANSE OPSOMMING: Organiese halfgeleiers word gebruik vir die vervaardiging van dun-film (kleiner
as 50nm) fotovoltaïse toestelle. Laagdiktes is gekalibreer deur die gebruik van
’n AFM en QCM kristalle. ’n Inhuis metode is voorberei vir die vergelyking van
vervaardigde selle. Daarna is AM1.5G (een son ekwivalente) toetse uitgevoer op
die vervaardigde sonselle. Die belangrikheid van laag dikte en die “exciton” blok
lae word ook beklemtoon.
Numeriese modellering van die optiese elektriese veld amplitude word gedoen
deur die oordrag matriks metode, om optiese interferensie gevolge in ag te
neem. Die foto-gegenereerde stroom is as ’n funksie van absorpsie onttrek met
wisselende posisie in die aktiewe lae, en is gebruik in ’n algemene model vir organiese
fotovoltaïse selle.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/4301 |
| Date | 03 1900 |
| Creators | Botha, Alwyn Francois |
| Contributors | Perold, W. J., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : University of Stellenbosch |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 95 p. : ill. |
| Rights | University of Stellenbosch |
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