Novel heterojunction bipolar transistor architectures for the practical implementation of high-efficiency three-terminal solar cells

Three-terminal heterojunction bipolar transistor solar cell for high-efficiency photovoltaic conversion

Here we propose, for the first time, a solar cell characterized by a semiconductor transistor structure (n/p/n or p/n/p) where the base-emitter junction is made of a high-bandgap semiconductor and the collector is made of a low-bandgap semiconductor. We calculate its detailed-balance efficiency limit and prove that it is the same one than that of a double-junction solar cell. The practical impo...

Novel high-efficiency crystalline-silicon-based compound heterojunction solar cells: HCT (heterojunction with compound thin-layer).

With an amorphous silicon (a-Si:H)/crystalline silicon (c-Si) heterojunction structure, the heterojunction with intrinsic thin-layer (HIT) solar cell has become one of the most promising technologies for c-Si based solar cells. By replacing a-Si:H thin films with appropriate compound semiconductors, we propose novel heterojunction structures which allow c-Si heterojunction solar cells to posses...

High-efficiency polymer tandem solar cells with three-terminal structure.

Figure 1. a) Two diodes connected in parallel with the anodes of the two diodes connected together and the cathodes connected together. b) Schematic of the three-terminal device and the dotted squares on Polymer solar cells are a promising alternative to future photovoltaic applications due to various advantages such as low cost and ease of processing. Ever since the invention of bulk heterojun...

Novel High-Efficiency Crystalline-Si-Based Compound Heterojunction Solar Cells: HCT (Heterojunction with Compound Thin-layer)

Toward High‐Efficiency Solution‐Processed Planar Heterojunction Sb2S3 Solar Cells

Low-cost hybrid solar cells have made tremendous steps forward during the past decade owing to the implementation of extremely thin inorganic coatings as absorber layers, typically in combination with organic hole transporters. Using only extremely thin films of these absorbers reduces the requirement of single crystalline high-quality materials and paves the way for low-cost solution processin...