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RENBAO WANG1,* , HAIHONG NIU2, TING YANG2, SHIDING MIAO2, JINZHANG XU2
CdSe quantum dots (QDs) were synthesized via a hot-bubbling route. The synthetic parameters including temperature, growth time, and feeding ratio Cd/Se were studied to show great influence on the optical properties. More than 5.0g CdSe QDs were obtained in a lab-scale synthesis at 210°C. The prepared CdSe QDs had been transferred into aqueous solution via ligand exchange. To expand the spectral response in photovoltaic devices, CdSe QDs were deposited on mesoporous TiO2-SiO2 electrode, and the solar cells (SCs) were prepared. It was found that the sensitization solar cells, for the TiO2-SiO2/CdSe(hot-bubbling) device, showed a power conversion efficiency of 1.94% under the illumination of one sun (AM1.5, 100mW/cm2), which was about as the same as the TiO2-SiO2/CdSe(hot-injection) device (η=1.74%). This research provides an alternative in the manufacturing the CdSe QDs that could find applications in photoelectrical devices..
Hot-bubbling, CdSe quantum dots, Sensitized, Solar cells.
RENBAO WANG, HAIHONG NIU, TING YANG, SHIDING MIAO, JINZHANG XU, Synthesis of CdSe quantum dots (QDs) via a hot-bubbling route and sensitized solar cells assembly, Optoelectronics and Advanced Materials - Rapid Communications, 14, 3-4, March-April 2020, pp.172-176 (2020).
Submitted at: Aug. 6, 2019
Accepted at: April 9, 2020
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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