NOVELTY - Dye sensitized semiconductor dual-diaphragm apparatus comprises temperature controlling apparatus on iron bracket; sensitizing jar sleeved in the temperature controlling apparatus; sensitizing jar sealing cover on top of sensitizing jar; condenser having bottom pipe, which is in sealed connection with the sensitizing jar sealing cover via a vent on the cover; inner sleeve in sealed connection with the sensitizing jar sealing cover; and thermodetector and B thermodetector, which are in sealed connection with the sensitizing jar sealing cover.    USE - Dye sensitized semiconductor dual-diaphragm apparatus for providing near-infrared cyanine dye sensitized semiconductor material (claimed) useful for solar power cell, human simulated photosynthesis, photocatalysis, photolysis-oxygen generation, and light degradation.    ADVANTAGE - The apparatus has simple structure; is environment friendly and easy for industrialization; and increases the sensitization effect, the performance of the dye sensitized semiconductor material, and the product quality.    DETAILED DESCRIPTION - Dye sensitized semiconductor dual-diaphragm apparatus comprises temperature controlling apparatus on iron bracket; sensitizing jar sleeved in the temperature controlling apparatus; sensitizing jar sealing cover on top of the sensitizing jar; condenser having bottom pipe, which is in sealed connection with the sensitizing jar sealing cover via a vent on the cover, where top end of the condenser is in sealed connection with bottom pipe of three-way valve, and middle lower part of condenser is clamped on the iron bracket via the clamp; inner sleeve in sealed connection with the sensitizing jar sealing cover; and thermodetector and B thermodetector, which are in sealed connection with the sensitizing jar sealing cover. An INDEPENDENT CLAIM is included for near-infrared cyanine dye sensitized semiconductor material comprising near-infrared cyanine dye-cyclodextrin composite fluid sensitized nano-semiconductor.