Vacuum-deposited planar heterojunction polymer solar cells.
The vacuum thermal evaporation of poly(3-hexylthiophene) (P3HT) for application in photovoltaic cells is demonstrated. Structural changes before and after evaporation are determined using GPC, UV-vis absorption spectroscopy, NMR, and FTIR. GPC showed that the polymer molecular weight is reduced duri...
| المؤلفون الرئيسيون: | , , , , , , |
|---|---|
| التنسيق: | Journal article |
| اللغة: | English |
| منشور في: |
2011
|
| _version_ | 1826284993999011840 |
|---|---|
| author | Kovacik, P Sforazzini, G Cook, A Willis, S Grant, P Assender, H Watt, A |
| author_facet | Kovacik, P Sforazzini, G Cook, A Willis, S Grant, P Assender, H Watt, A |
| author_sort | Kovacik, P |
| collection | OXFORD |
| description | The vacuum thermal evaporation of poly(3-hexylthiophene) (P3HT) for application in photovoltaic cells is demonstrated. Structural changes before and after evaporation are determined using GPC, UV-vis absorption spectroscopy, NMR, and FTIR. GPC showed that the polymer molecular weight is reduced during evaporation, leading to a blue-shift of the absorption spectra. FTIR and NMR were used to examine the change in chemical structure: it was found that conjugation remains mostly intact; however, the conjugation length decreases and side chains dissociate from the backbone. Bilayer heterojunction solar cells were fabricated by sequential deposition of P3HT and C₆₀ and the photovoltaic response measured. |
| first_indexed | 2024-03-07T01:22:12Z |
| format | Journal article |
| id | oxford-uuid:90bea24c-63fe-44db-8978-afc9d612edab |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:22:12Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:90bea24c-63fe-44db-8978-afc9d612edab2022-03-26T23:13:47ZVacuum-deposited planar heterojunction polymer solar cells.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:90bea24c-63fe-44db-8978-afc9d612edabEnglishSymplectic Elements at Oxford2011Kovacik, PSforazzini, GCook, AWillis, SGrant, PAssender, HWatt, AThe vacuum thermal evaporation of poly(3-hexylthiophene) (P3HT) for application in photovoltaic cells is demonstrated. Structural changes before and after evaporation are determined using GPC, UV-vis absorption spectroscopy, NMR, and FTIR. GPC showed that the polymer molecular weight is reduced during evaporation, leading to a blue-shift of the absorption spectra. FTIR and NMR were used to examine the change in chemical structure: it was found that conjugation remains mostly intact; however, the conjugation length decreases and side chains dissociate from the backbone. Bilayer heterojunction solar cells were fabricated by sequential deposition of P3HT and C₆₀ and the photovoltaic response measured. |
| spellingShingle | Kovacik, P Sforazzini, G Cook, A Willis, S Grant, P Assender, H Watt, A Vacuum-deposited planar heterojunction polymer solar cells. |
| title | Vacuum-deposited planar heterojunction polymer solar cells. |
| title_full | Vacuum-deposited planar heterojunction polymer solar cells. |
| title_fullStr | Vacuum-deposited planar heterojunction polymer solar cells. |
| title_full_unstemmed | Vacuum-deposited planar heterojunction polymer solar cells. |
| title_short | Vacuum-deposited planar heterojunction polymer solar cells. |
| title_sort | vacuum deposited planar heterojunction polymer solar cells |
| work_keys_str_mv | AT kovacikp vacuumdepositedplanarheterojunctionpolymersolarcells AT sforazzinig vacuumdepositedplanarheterojunctionpolymersolarcells AT cooka vacuumdepositedplanarheterojunctionpolymersolarcells AT williss vacuumdepositedplanarheterojunctionpolymersolarcells AT grantp vacuumdepositedplanarheterojunctionpolymersolarcells AT assenderh vacuumdepositedplanarheterojunctionpolymersolarcells AT watta vacuumdepositedplanarheterojunctionpolymersolarcells |