Inexpensive solution processing of bulk heterojunction (BHJ) type organic photovoltaic
(OPV) cells offers an attractive option for the low cost solar energy conversion. Solution …

Partial shading in photovoltaic modules is an important reliability and performance concern
for all photovoltaic technologies. In this paper, we show how cell geometry can be used as a …

We present an end-to-end modeling framework, spanning the device, module and also
system levels, for analyzing thin film photovoltaics (PV). This approach is based on …

We describe a comprehensive study of intrinsic reliability issue arising from partial
shadowing of photovoltaic panels (eg, a leaf fallen on it, a nearby tree casting a shadow …

The optimization design of the power system is essential for stratospheric airships with
paradoxical requirements of high reliability and low weight. The methodology of orthogonal …

Thin film photovoltaics (TFPV) offer low cost alternatives to conventional crystalline Silicon (c-
Si) PV, and can enable novel applications of PV technology. Their large scale adoption …

This dissertation focuses on the power management unit (PMU) and integrated circuits (ICs)
for the internet of things (IoT), energy harvesting and biomedical devices. Three monolithic …

In contrast to conventional bulk-silicon technology, polysilicon (poly-Si) thin-film transistors
(TFTs) can be implanted in flexible substrate and can have low process temperature. These …

For meeting requirements of staying in the stratosphere for a long time period more than one
year and less of maintenance, the power and propulsion system of the stratospheric airship …

Thin film technologies are one of the most promising new developments in the field of solar
research. One such material is Cu (InGa) Se2 (CIGS). In this thesis, CIGS cells fabricated at …