English: English

Silicon heterojunction (SHJ) solar cell technology is one of the most promising PV technologies because of its high power conversion efficiencies, simple fabrication process and low manufacturing cost. The current world record efficiency of SHJ solar cell reaches up to 26.81%. SHJ solar cell produces the highest VOC over 750 mV among the c-Si...

Experimental demonstration of poly-Si/SHJ hybrid tunnel-IBC c-Si cells

Interdigitated back-contacted solar cell (IBC) is a successful high-efficiency solar cell concept. Without a metal grid at the front side, the metal shading loss is eliminated. However, the fabrication process of an IBC cell is much more complicated than that of a FBC cell. Within the PVMD group, two poly-Si carrier-selective passivating...

Numerical simulation of c-Si solar cells based on transition metal oxide as carrier selective contact: Drift diffusion and ab initio

Silicon heterojunction solar cells employing transition metal oxides as carrier selective contact are of particular interest due to the potential of reducing parasitic absorption while featuring optimal electrical properties. Recently, a record efficiency of 23.5% was achieved by employing molybdenum oxide (MoOx) as carrier selective contact....

Versatility of nanocrystalline silicon films: From thin-film to perovskite/c-Si tandem solar cell applications

Doped hydrogenated nanocrystalline (nc-Si:H) and silicon oxide (nc-SiO^x:H) materials grown by plasma-enhanced chemical vapor deposition have favourable optoelectronic properties originated from their two-phase structure. This unique combination of qualities, initially, led to the development of thin-film Si solar cells allowing the...

Molybdenum Oxide in Hole-selective Contacts for Silicon-based Solar Cells

Although front and back contact silicon heterojunction solar cells exhibit promising external parameters, they are limited by the front highly absorptive doped layers. Due to their opto-electronic properties, research and development groups have demonstrated that transition metal oxides (TMO) are potential alternatives for doped layers in solar...

Molybdenum oxide thin films for heterojunction crystalline silicon solar cells

With the fast expanding photovoltaic (PV) industry, we are currently witnessing an unprecedented evolution of high-efficiency PV technologies in laboratories. The topic of this thesis is certainly among the novel technologies that could eventually break through on the market. Ultra-thin molybdenum oxide (MoOx) layer, as a hole-selective contact...