6 research outputs found
Process Engineering for Low-Temperature Carbon-Based Perovskite Solar Modules
<p>In less than a decade, Perovskite solar cell (PSC) technology has gained high efficiency and broad attention because of its key enabling physical and morphological features. One of the main obstacles to PSC industrialization and commercialization is managed with the demonstration of stable devices by adopting low-cost, reliable materials and fabrication process methods. Here, we report a Perovskite solar module based on a low-temperature carbon electrode. The full process was performed in ambient air and engineered by printing techniques.</p>
Process Engineering for Low-Temperature Carbon-Based Perovskite Solar Modules
<p>In less than a decade, Perovskite solar cell (PSC) technology has gained high efficiency and broad attention because of its key enabling physical and morphological features. One of the main obstacles to PSC industrialization and commercialization is managed with the demonstration of stable devices by adopting low-cost, reliable materials and fabrication process methods. Here, we report a Perovskite solar module based on a low-temperature carbon electrode. The full process was performed in ambient air and engineered by printing techniques.</p>
Polymer Amplification to Improve Performance and Stability Towards Semi-Transparent Perovskite Solar Cells Fabrication
The performance of methylammonium
lead triiodide (CH3NH3PbI3) based solar cells
depends on its crystallization and controlled microstructure. In spite of its
high performance, long-term stability is a paramount factor towards its large
area fabrication and potential industrialization. Herein, we have employed poly(vinylidene
fluoride−trifluoro ethylene) P(VDF-TrFE)
as an additive into a low concentration based perovskite precursor solutions to
control the crystallinity and microstructure. Perovskite layers of lower
thickness can be derived from low precursor concentration, however it often
suffers from severe voids and roughness. Introducing judicious quantities of
P(VDF-TrFE) can improve the surface coverage, smoothness as well as reduces the
grain boundaries in the perovskite. An array of characterization techniques
were utilized to probe the structural, microstructural and spectroscopic
properties. Impedance spectra suggests, the P(VDF-TrFE) can improve the carrier
lifetimes and reduce the charge transfer resistance, which in turn allows to improve
photovoltaic performance. For an optimized concentration of P(VDF-TrFE), the
fabricated semi-transparent solar cells yielded power conversion efficiency in
excess of 10%, which supersede pristine devices along with improved stability.
The device architect and the fabrication technique provide an effective route to
fabricate cost effective and visible-light-semi-transparent perovskite solar
cells.</p