Low-Cost RoHS Compliant Solution Processed Photovoltaics Enabled by Ambient Condition Synthesis of AgBiS2 Nanocrystals

Rational defect passivation of Cu2ZnSn(S,Se)4 photovoltaics with solution-processed Cu2ZnSnS4:Na nanocrystals.

An effective defect passivation route has been demonstrated in the rapidly growing Cu2ZnSn(S,Se)4 (CZTSSe) solar cell device system by using Cu2ZnSnS4:Na (CZTS:Na) nanocrystals precursors. CZTS:Na nanocrystals are obtained by sequentially preparing CZTS nanocrystals and surface decorating of Na species, while retaining the kesterite CZTS phase. The exclusive surface presence of amorphous Na spe...

Toward a Low-Cost Artifi cial Leaf: Driving Carbon-Based and Bifunctional Catalyst Electrodes with Solution- Processed Perovskite Photovoltaics

Solution-processed nanostructured benzoporphyrin with polycarbonate binder for photovoltaics.

Figure 1 . (a) Chemical transformation of BP precursor (CP) to benzoporphyrin (BP) during annealing; (b) standard BP OPV device; (c) TGA analysis of PC and CP; (d) schematic of processing method used to form fi lms of BP for morphology analysis. Organic photovoltaics (OPV) based on bulk heterojunctions (BHJs) have effi ciencies above 7% [ 1 , 2 ] and can be processed from solution at potentiall...

Solution-processed PbS quantum dot infrared photodetectors and photovoltaics.

In contrast to traditional semiconductors, conjugated polymers provide ease of processing, low cost, physical flexibility and large area coverage. These active optoelectronic materials produce and harvest light efficiently in the visible spectrum. The same functions are required in the infrared for telecommunications (1,300-1,600 nm), thermal imaging (1,500 nm and beyond), biological imaging (t...

Low Temperature Solution-Processed Sb:SnO2 Nanocrystals for Efficient Planar Perovskite Solar Cells.

Inorganic metal oxide electron-transport layers (ETLs) have the potential to yield perovskite solar cells with improved stability, but generally need high temperature to form conductive and defect-less forms, which is not compatible with the fabrication of flexible and tandem solar cells. Here, we demonstrate a facile strategy for developing efficient inorganic ETLs by doping SnO2 nanocrystals ...