An on-axis holographic zone plate or an off-axis holographic zone plate used for the silicon solar cell will have a solar energy conversion factor of 2. 5. And the combination of the two plates will have its conversio...An on-axis holographic zone plate or an off-axis holographic zone plate used for the silicon solar cell will have a solar energy conversion factor of 2. 5. And the combination of the two plates will have its conversion factor of 5. Especially for the use of silver halide photographic emulsion, the cost can be cut down dramatically.展开更多
文摘An on-axis holographic zone plate or an off-axis holographic zone plate used for the silicon solar cell will have a solar energy conversion factor of 2. 5. And the combination of the two plates will have its conversion factor of 5. Especially for the use of silver halide photographic emulsion, the cost can be cut down dramatically.
