Enhancing the Efficiency of Dye Sensitized Solar Cells by Using Anatase and Brookite Mixed Phases of TiO2
文献类型：期刊论文
| 作者 | Khan, M. I.2; Shahnawaz2; Imran, Shahid2; Yousaf, Muhammad Waqas2; Wahab, A.3; Adil, F.2; Majeed, Shahbaz1; Khan, M. Fiaz1; Aziz, Tariq4 |
| 刊名 | JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 14期号:11页码:1582-1588 |
| ISSN号 | 1555-130X |
| 关键词 | Cu TiO2 Anatase Brookite DSSCs |
| DOI | 10.1166/jno.2019.2535 |
| 通讯作者 | Khan, M. I.(iftikharphysicsuet@gmail.com) |
| 英文摘要 | The phases of TiO2 have an important role in the efficiency of dye sensitized solar cells (DSSCs). In this research, the effects of anatase and mixed phases (brookite and anatase) of TiO2 on the efficiency of DSSCs have been reported. 2% Cu doped TiO2 (Cu:TiO2) thin films are prepared by sol-gel dip coating technique. These films are annealed at the temperatures of "350 degrees C, 450 degrees C, 550 degrees C and 650 degrees C." XRD showed that at 550 degrees C and 650 degrees C, films have mixed phases of TiO2. Also, it showed that grain size is increased by increasing temperature. No extra phases of Cu like CuO etc. were observed in XRD graphs, which confirmed that Cu is completely dissolved into TiO2. UV-Vis results showed that all the films have more than 80% transmittance in the visible region. The optical band gap energy (E-g) of films at " 350 degrees C, 450 degrees C, 550 degrees C and 650 degrees C" is 3.96, 3.81, 3.75 and 3.64 eV, respectively. The electrical resistivity of these thin films by four point probe technique is calculated as 121.8 x 10(2) Omega-m, 95.69 x 10(2) Omega-m, 86.65 x 10(2) Omega-m and 76.3 x 10(2) Omega-m respectively. Solar simulator results showed that the current density (J(sc)) of mixed phase is higher than single phase, causing higher efficiency. The maximum J(sc) 5.12 mAcm(-2) is achieved at 650 degrees C (mixed phase), resulting in higher efficiency of 2.35% which is more than 100 times the efficiency of anatase phase which has 1.18%. This work will provide a way to enhance the efficiency of DSSCs by using mixed phases of TiO2. In future, if 1-D structure of these mixed phases is used in DSSCs then efficiency of DSSCs will improve definitely (or positively). |
| WOS研究方向 | Engineering ; Science & Technology - Other Topics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| WOS记录号 | WOS:000491075000010 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/135680]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Khan, M. I. |
| 作者单位 | 1.UET, Dept Phys, Lahore 54890, Pakistan 2.Univ Lahore, Dept Phys, Lahore 53700, Pakistan 3.COMSATS Univ Islamabad, Dept Phys, Lahore Campus, Lahore 54000, Pakistan 4.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khan, M. I.,Shahnawaz,Imran, Shahid,et al. Enhancing the Efficiency of Dye Sensitized Solar Cells by Using Anatase and Brookite Mixed Phases of TiO2[J]. JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS,2019,14(11):1582-1588. |
| APA | Khan, M. I..,Shahnawaz.,Imran, Shahid.,Yousaf, Muhammad Waqas.,Wahab, A..,...&Aziz, Tariq.(2019).Enhancing the Efficiency of Dye Sensitized Solar Cells by Using Anatase and Brookite Mixed Phases of TiO2.JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS,14(11),1582-1588. |
| MLA | Khan, M. I.,et al."Enhancing the Efficiency of Dye Sensitized Solar Cells by Using Anatase and Brookite Mixed Phases of TiO2".JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS 14.11(2019):1582-1588. |
入库方式： OAI收割
来源：金属研究所
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