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Next generation photovoltaic cells and systems through MEMS technology

ECS Transactions

Nielson, Gregory N.; Okandan, Murat O.; Cruz-Campa, Jose L.; Resnick, Paul J.; Sanchez, Carlos A.; Sweatt, W.C.; Lentine, Anthony L.; Gupta, Vipin P.; Nelson, Jeffrey S.

We report on the application of MEMS and other microsystem technologies to photovoltaic (PV) cells, modules, and systems, taking advantage of several, significant benefits that are realized as the size of solar cells decrease to sub-mm length scales. To demonstrate these effects, we have developed both crystalline silicon and III-V PV cells. These cells are from 2 to 20 microns thick and from 250 microns to one millimeter across. We have demonstrated conversion efficiencies of up to 14.9% for a 14 micron thick crystalline silicon PV cell. This work contributes to two broad PV applications: 1) highly flexible PV modules with conversion efficiencies greater than 20%, and 2) commercial/utility scale PV systems using moderate concentration flat plate modules with simple single-axis or coarse dual-axis tracking. Cost models indicate that systems based on these technologies can achieve unsubsidized energy costs of less than $0.10/kWh. © The Electrochemical Society.

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TYPE Conference YEAR 2012
OSTIScopus

Enhanced multijunction cell and system conversion efficiency through heterogeneous microsystem integration techniques

Optics InfoBase Conference Papers

Nielson, Gregory N.

We report on unique heterogeneous multijunction solar cell structures being created with advanced micro-and nano-system technologies with the potential for enhanced efficiency by removing or reducing losses present in traditional monolithic multijunction solar cells. © 2012 OSA.

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TYPE Conference YEAR 2012
OSTIScopus
Results 51–75 of 113
Results 51–75 of 113