Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface
Hybrid semiconductora polymer nanostructured solar cells hold the promise of photovoltaic energy conversion based on abundant and nontoxic materials and scalable manufacturing processes. After a decade of intense research activity, hybrid solar cells still exhibit low shorta circuit currents and mod...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1797091692892913664 |
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| author | Noori, K Giustino, F |
| author_facet | Noori, K Giustino, F |
| author_sort | Noori, K |
| collection | OXFORD |
| description | Hybrid semiconductora polymer nanostructured solar cells hold the promise of photovoltaic energy conversion based on abundant and nontoxic materials and scalable manufacturing processes. After a decade of intense research activity, hybrid solar cells still exhibit low shorta circuit currents and moderate opena circuit voltages. These bottlenecks call for a detailed understanding of the physics underlying the device operation at the nanoscale. Using firsta principles calculations the ideal energya level alignment of hybrid solar cell interfaces based on the wide bandgap semiconductor ZnO and the polymer poly(3-hexylthiophene) (P3HT) is investigated. The interfacial charge transfer is quantified and it is shown that this effect increases the ideal opena circuit voltage with respect to the electrona affinity rule by as much as 0.5 V. The results of this work suggests that there is significant room for optimizing this class of excitonic solar cells by tailoring the semiconductor/polymer interface at the nanoscale. Copyright © 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| first_indexed | 2024-03-07T03:36:40Z |
| format | Journal article |
| id | oxford-uuid:bc86c286-b559-461a-85fb-120093c12375 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:36:40Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:bc86c286-b559-461a-85fb-120093c123752022-03-27T05:25:01ZIdeal Energy-Level Alignment at the ZnO/P3HT Photovoltaic InterfaceJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bc86c286-b559-461a-85fb-120093c12375EnglishSymplectic Elements at Oxford2012Noori, KGiustino, FHybrid semiconductora polymer nanostructured solar cells hold the promise of photovoltaic energy conversion based on abundant and nontoxic materials and scalable manufacturing processes. After a decade of intense research activity, hybrid solar cells still exhibit low shorta circuit currents and moderate opena circuit voltages. These bottlenecks call for a detailed understanding of the physics underlying the device operation at the nanoscale. Using firsta principles calculations the ideal energya level alignment of hybrid solar cell interfaces based on the wide bandgap semiconductor ZnO and the polymer poly(3-hexylthiophene) (P3HT) is investigated. The interfacial charge transfer is quantified and it is shown that this effect increases the ideal opena circuit voltage with respect to the electrona affinity rule by as much as 0.5 V. The results of this work suggests that there is significant room for optimizing this class of excitonic solar cells by tailoring the semiconductor/polymer interface at the nanoscale. Copyright © 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| spellingShingle | Noori, K Giustino, F Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title | Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title_full | Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title_fullStr | Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title_full_unstemmed | Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title_short | Ideal Energy-Level Alignment at the ZnO/P3HT Photovoltaic Interface |
| title_sort | ideal energy level alignment at the zno p3ht photovoltaic interface |
| work_keys_str_mv | AT noorik idealenergylevelalignmentattheznop3htphotovoltaicinterface AT giustinof idealenergylevelalignmentattheznop3htphotovoltaicinterface |