Optimization of quantum dots photoelectric conversion using up-converting nanoparticles, IR laser and visible light / (Record no. 65980)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03390cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031959.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180424s2016 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.24.05.M.Sc.2016.Sa.O |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Samar Saeed Mahmoud Abdou |
| 245 10 - TITLE STATEMENT | |
| Title | Optimization of quantum dots photoelectric conversion using up-converting nanoparticles, IR laser and visible light / |
| Statement of responsibility, etc. | Samar Saeed Mahmoud Abdou ; Supervised Tareq Youssef , Souad Elfeky , Farag Eltalabawy |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تعظيم الاستفادة من التحويل الكهروضوئي لنقاط الكم باستخدام جسيمات التحويل العلوي النانوية وليزر الاشعة تحت الحمراء والضوء المرئي |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Samar Saeed Mahmoud Abdou , |
| Date of publication, distribution, etc. | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 116 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Sciences - Department of Laser Applications Invironmental Metrology, Photochemistry and Agriculture |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Most materials frequently used for photovoltaic applications absorb only photons with energy in the UV/VIS regions. Rare-earth up-conversion materials (UC), which convert long wavelength near-infrared (NIR) photons into shorter wavelength visible photons, have been enticing great acuity in various fields including bio-imaging and photovoltaic applications etc. This research aims to integrate UCNPs (NaYF₄:Yb³⁺/Er³⁺) with the CdTe quantum dots (QDs) to create a model system for optimized QDs solar cell (QDSSC) in which the QDs can absorb the emitted photons from UCNPs for effective utilization of energy in the NIR region. Therefore high electrical current can be obtained. In this work NaYF₄:Yb³⁺/Er³⁺ UCNPs and CdTe (QDs) nanoparticles were prepared for solar cell construction. Hexagonal UCNPs of Ý-NaYF4 co-doped with NaYF₄:Yb³⁺/Er³⁺was directly synthesized via thermal decomposition of metals trifluoroacetate precursors. CdTe QDs were prepared by the organometallic method. The prepared nanomaterials were identified and described by XRD, TEM, Absorption and fluorescence spectroscopy. TEM and XRD revealed that the UC nanocrystals were hexagonal with a size range of around 30 nm. The absorption spectrum clarified the presence of one band at nmax= 980 nm while fluorescence spectrum illustrated the presence of three characteristic emission peaks for UCNPs at nmax= 539 nm, 548 nm and 658 nm. On the other hand, the CdTe QDs size was in the range of 4±0.2 nm with a spherical shape as observed by TEM. Whereas CdTe nanocrystals were cubic as confirmed by XRD. Furthermore, CdTe QDs had a broad absorption band at nmax=535-600 nm and a sharp emission peak at nmax= 621 nm. The prepared nanomaterials were assembled in the photoelectrode of the QDSSC sandwich structure |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Converting nanoparticles |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | IR laser and Visible ligh |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Photoelectric conversion |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Farag Eltalabawy , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Souad Elfeky , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tareq Youssef , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.24.05.M.Sc.2016.Sa.O | 01010110074899000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.24.05.M.Sc.2016.Sa.O | 01020110074899000 | 22.09.2023 | CD - Rom | 74899.CD |