Subcategory: Materials Science
Wagneci Hawley - Norfolk State University
Co-Author(s): Taliya Gunawansa, Norfolk State University, Norfolk, VA; Sangram K. Pradhan, Norfolk State University, Norfolk, VA; Messaoud Bahoura, Norfolk State University, Norfolk, VA
Luminescent quantum dots (QDs) with size-tunable have been increasing potential interest for opto-electronic applications. One-pot microwave irradiation technique favored a quick and cost-effective synthesis of cadmium selenide (CdSe) QDs compared to expensive, timely traditional heating methods. Our ultra violet exposure experiment on prepared QDs confirmed that, time and temperature control play an important role to effectively tune the particle size of the quantum dots. Photoluminescence (PL) and ultraviolet-visible spectroscopy (UV-VIS) were used to characterize the change in fluorescence intensity shifts, absorption, and particle size. Furthermore, the sizes of the QDS were also measured using transmission electron microscopy (TEM). Finally, CdSe QDs were utilized to fabricate P3HT/PCBM/ CdSe QD based hetero-junction solar cells for efficient renewable solar energy harvesting.
Funder Acknowledgement(s): This work is supported by the NSF-CREST Grant number HRD 1547771 and NSF-CREST Grant number HRD 1036494.
Faculty Advisor: Messaoud Bahoura, email@example.com
Role: I engaged in all aspects of the research.