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| 1 | Highly efficient GaAs solar cells by limiting light emission angle显示文摘In a conventional flat plate solar cell under direct sunlight,light is received from the solar disk,but is re-emitted isotropically.This isotropic emission corresponds to a significant entropy increase in the solar cell,with a corresponding drop in efficiency.Here,using a detailed balance model,we show that limiting the emission angle of a high-quality GaAs solar cell is a feasible route to achieving power conversion efficiencies above 38%with a single junction.The highest efficiencies are predicted for a thin,light trapping cell with an ideal back reflector,though the scheme is robust to a non-ideal back reflector.Comparison with a conventional planar cell geometry illustrates that limiting emission angle in a light trapping geometry not only allows for much thinner cells,but also for significantly higher overall efficiencies with an excellent rear reflector.Finally,we present ray-tracing and detailed balance analysis of two angular coupler designs,show that significant efficiency improvements are possible with these couplers,and demonstrate initial fabrication of one coupler design. | Emily D Kosten Jackson H Atwater James Parsons Albert Polman Harry A Atwater | 2013 | Light(Science & Applications)2013，2，1： | 9 |
| 2 | Phytase, Citric Acid and 1α- Hydroxycholecalciferol Improve Phytate Phosphorus Utilization in Chicks Feed Corn-soybean Meal Diet 显示文摘 | Snow J Baker D H Parsons C M | 2004 | Pouh Sci2004，83，： | 1 |
| 3 | Antigenic and biological characterisatien of avian paramyxovirus type Ⅰ isolates from pigenns-an international collaborative study显示文摘 | Alexander D J Russell P H Parsons G | 1985 | Avian Pathol1985，14，： | 1 |
| 4 | Antigenic and biological characterization of avian paramyxovirus type 1 isolates from pigeons-an international collaborative study显示文摘 | Alexander D J Russell P H Parsons G | 1985 | Avian Pathol1985，14，： | 1 |
| 5 | Resistance to overland flow on desert hillslops显示文摘 | Abrahams A D Parsons A J Luk S H | 1986 | Journal of Hydrology1986，88，： | 1 |
| 6 | Antigenic and biological characterization of paramyxovirus type Ⅰ isolates from pigeons:an international collaborative study显示文摘 | Alexander D J Russell P H Parsons G | 1985 | Avian Pathology1985，14，： | 1 |
| 7 | Antigenic and biological characterization of avian paramyxovirus type 1 isolatesfrom pigeon- an international collaboration study显示文摘 | Alexander D J Russdl P H Parsons G | 1985 | Avian Pathol1985，14，： | 1 |
| 8 | Field measurement of the velocity of overland flow using dye tracing 显示文摘 | ABRAHAMS A D PARSONS A J LUK S H | 1985 | Earth Sur- face Processes and Landforms1985，11，： | 1 |
| 9 | Usage testing of military simulation systems显示文摘 | Walton G H Patton R M Parsons D J | 2001 | Arlington USA Proceedings of Simulation Conference2001，，1： | 1 |
| 10 | Distillers dried grains with solubles as a protein source for the chick 显示文摘 | Parsons C M Baker D H Harter-Dennis J M | 1983 | Pouh Sci1983，62，： | 1 |
| 11 | IDH1 and IDH2 mutations in gliomas显示文摘 | YAN H PARSONS D W JIN G | 2009 | N Engl J Med2009，360，8： | 1 |
| 12 | Maintenance requirement for valine and efficiency of its use above maintenance for accretion of whole-body valine and protein in young chicks显示文摘 | Baker D H Femandez S R Parsons C M | 1996 | J Nutr1996，126，： | 1 |
| 13 | Antigenic and biological characterization of paramyxovirus type Ⅰ isolates from pigeons:an international collaborative study显示文摘 | ALEXANDER D J RUSSELL P H PARSONS G | 1985 | Avian Pathol1985，14，： | 1 |
| 14 | Field measurement of the velocity of overland flow using dyes tracing显示文摘 | Abrahams A D Parsons A J Luk S H | 1986 | Earthsurface Processes and Landforms1986，11，： | 1 |
| 15 | A 1 : 1 co- crystal of quinol and pyridine显示文摘 | Oswald I D H Motherwell S W D Parsons S | 2004 | Acta Cryst2004，60，： | 1 |
| 16 | Amelioration of oral cop- per toxicity in chicks by dietary additions of ascorbic acid, cysteine and zinc显示文摘 | Persia M E Parsons C M Baker D H | 2003 | Nutrition Research2003，23，12： | 1 |
| 17 | Field measurement of the velocity of overland flow using dye tracing显示文摘 | Abrahams A D Parsons A J Luk S H | 1986 | Earth surface processes and landforms1986，11，6： | 1 |
| 18 | Drainage routes of bronchial blood flow in anaesthetized sheep显示文摘 | Parsons G H Bommer W J Siefkin A D | 2007 | Pulm Pharmacol Ther2007，20，2： | 1 |
| 19 | PTEN, a putative protein tyrosine phosphatase gene mutated in human brain, breast, and prostate cancer 显示文摘 | Li J Yen C Liaw D Podsypanina K Bose S Wang SI Puc J Miliaresis C Rodgers L McCombie R Bigner SH Giovanella BC Ittmann l Tycko B Hibshoosh H Wigler MH Parsons R | 1997 | Science1997，275，： | 1 |
| 20 | Resistance to overland flow on desert hill slops 显示文摘 | Abrahams A D Parsons A J Luk S H | 1986 | Journal of Hydrology1986，88，34： | 1 |
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