Partially shaded III-V concentrator solar cell performance

Bunthof, L.A.A.; Veelenturf, S.; Haverkamp, E.J.; Corbeek, W.H.M.; Woude, D. van der; Bauhuis, G.J.; Mulder, P.; Vlieg, Elias; Schermer, J.J.

doi:10.1016/j.solmat.2017.11.039

Cited by 7 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All three quantities are slightly lower than those in Figure 3b because the encapsulating glass has an optical transmittance of 91%, while the active area has been reduced from 1 to 0.25 cm 2 , resulting in significant shading which lowers the photovoltage by ≈6% under 1 sun. [ 36 ] The electrical connections are also likely to introduce some resistance. The J – V characteristics of a single electrochemical cell were then measured, revealing that an applied potential of 1.55 V is required to operate at 13 mA cm −2 , normalized with respect to the (photo)anode.…”

Section: Resultsmentioning

confidence: 99%

“…It is conceivable to reduce shading from 75% to less than 40% through device design and fabrication improvements and/or the use of larger triple‐junction cells. The resulting reduction in photovoltage would be no more than 2% under 1 sun, [ 36 ] saving 100 mV per photoanode. While this would only result in minor improvements for the 3:4 configuration, it would significantly enhance the STH efficiency of the 2:3 configuration to over 21%.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics

Butson,

Sharma,

Tournet

et al. 2023

Advanced Energy Materials

View full text Add to dashboard Cite

This research introduces a pioneering approach to solar water splitting technology, utilizing an innovative, highly efficient immersed system. The system incorporates a flexible array of electrochemical and photoelectrochemical cells, powered by high‐performance III‐V triple‐junction cells. Remarkably, this method significantly boosts the solar‐to‐hydrogen (STH) conversion efficiency, reaching a record 20.7% under 1 sun illumination, employing earth‐abundant catalysts operating at ambient temperature. These findings highlight extensive scope for further optimization, including minimizing optical transmission losses, mitigating shading effects, and reducing the overpotential of the electrochemical cells, thereby augmenting the STH efficiency to an estimated 28%. Through a comprehensive techno‐economic analysis, a levelized cost of hydrogen (LCOH) of 8.3 USD kg−1 is estimated, forecasting the potential for a reduction to a competitive 1.8 USD kg−1 with improved efficiency, increased capacity factors, and decreased production costs. A sensitivity analysis emphasizes the significant influence of factors such as III‐V cell cost, electrolyzer membrane cost and capacity factor on the LCOH. Overall, this study signifies crucial progress toward a highly efficient and economically viable solar water splitting solution, promising a sustainable route for hydrogen production.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%