Open-circuit voltage in organic solar cells
文献类型：期刊论文
| 作者 | Qi, Boyuan; Wang, Jizheng |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2012-12-14 |
| 卷号 | 22期号:46页码:24315-24325 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/c2jm33719c |
| 英文摘要 | Open-circuit voltage (V-OC) is the maximum voltage a solar cell can provide to an external circuit, which is derived from the splitting of hole and electron quasi-Fermi levels. In crystalline Si solar cells, the effective density of states at the bottom (top) of the conduction (valence) band is constant, and the quasi-Fermi level can be directly calculated via the Fermi-Dirac distribution. However, in organic materials, similar to amorphous Si, disorder induces gap tail states. Relaxation of carriers into these tail states brings the electron quasi-Fermi level down and the hole quasi-Fermi level up, and hence reduces V-OC. Furthermore, carrier recombination of various kinds can cause additional loss of V-OC. This article reviews the research progress in understanding the origin of V-OC in organic solar cells. In particular, the dependence of V-OC on four important factors, namely temperature, light intensity, work function of the electrode and material microstructure are discussed based on the model of density of states. Techniques to enhance V-OC are also briefly introduced and their mechanisms are analysed. |
| 语种 | 英语 |
| WOS记录号 | WOS:000311522600011 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48809]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Jizheng |
| 作者单位 | Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Boyuan,Wang, Jizheng. Open-circuit voltage in organic solar cells[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(46):24315-24325. |
| APA | Qi, Boyuan,&Wang, Jizheng.(2012).Open-circuit voltage in organic solar cells.JOURNAL OF MATERIALS CHEMISTRY,22(46),24315-24325. |
| MLA | Qi, Boyuan,et al."Open-circuit voltage in organic solar cells".JOURNAL OF MATERIALS CHEMISTRY 22.46(2012):24315-24325. |
入库方式： OAI收割
来源：化学研究所
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