4. ConclusionIn conclusion, CdSe/Cd

4. Conclusion
In conclusion, CdSe/CdS QDs have been successfully exploited for the detection of H2S vapor through a fluorescence quenching mechanism.

Two different configurations have been demonstrated.

The first one is dichloromethane with dispersed QDs. In this system, 100ppm H2S vapor is able to quench the fluorescence of QDs within 15 s, and the detection limit is approximately 2mL of 100ppm H2S.

The second system is a thin PDMS film with embedded QDs.

Our results show that 10ppm ofH2S vapor can quench the fluorescence of QDs embedded in films of PDMS within 1 min. The film does not show any response to water, hexane, 1-heptanol, but shows some response to 1-butylamine. However, only QDs embedded in films of PDMS show fully reversible response to H2S vapor.

Films of PDMS with embedded QDs offer many advantages such as high portability and low cost over traditional gas sensors.

These polymers can also be coated on safety equipments such as goggles or used as a standalone sensor to detect the presence ofH2S vapor in the atmosphere.

ผลลัพธ์ (ไทย) 3:

4 . สรุป
สรุป cdse / ซีดีควอนตัมด็อตได้รับเรียบร้อยแล้วใช้ประโยชน์เพื่อการตรวจหา h2s ไอน้ำผ่านเรืองหุ่นยนต์กลไก

ที่แตกต่างกันสองค่าที่ได้แสดงให้เห็นถึง

อันแรกกับควอนตัมด็อตเพื่อกระจาย . ในระบบนี้ h2s ไอน้ำ 100 ppm สามารถดับการเรืองแสงของควอนตัมด็อตภายใน 15 วินาที and the detection limit is approximately 2mL of 100ppm H2S.

The second system is a thin PDMS film with embedded QDs.

Our results show that 10ppm ofH2S vapor can quench the fluorescence of QDs embedded in films of PDMS within 1 min. The film does not show any response to water, hexane, 1-heptanol, but shows some response to 1-butylamine. However, only QDs embedded in films of PDMS show fully reversible response to H2S vapor.

Films of PDMS with embedded QDs offer many advantages such as high portability and low cost over traditional gas sensors.

These polymers can also be coated on safety equipments such as goggles or used as a standalone sensor to detect the presence ofH2S vapor in the atmosphere.