Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells
Metal halide perovskite thin films can be crystallized via a broad range of solution-based routes. However, the quality of the final films is strongly dependent upon small changes in solution composition and processing parameters. Here, this study demonstrates that a fractional substitution of PbCl2...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2017
|
| _version_ | 1797169933584433152 |
|---|---|
| author | Sakai, N Wang, Z Burlakov, V Lim, J McMeekin, D Pathak, S Snaith, H |
| author_facet | Sakai, N Wang, Z Burlakov, V Lim, J McMeekin, D Pathak, S Snaith, H |
| author_sort | Sakai, N |
| collection | OXFORD |
| description | Metal halide perovskite thin films can be crystallized via a broad range of solution-based routes. However, the quality of the final films is strongly dependent upon small changes in solution composition and processing parameters. Here, this study demonstrates that a fractional substitution of PbCl2 with PbI2 in the 3CH3 NH3 I:PbCl2 mixed-halide starting solution has a profound influence upon the ensuing thin-film crystallization. The presence of PbI2 in the precursor induces a uniform distribution of regular quadrilateral-shaped CH3 NH3 PbI3 perovskite crystals in as-cast films, which subsequently grow to form pinhole-free perovskite films with highly crystalline domains. With this new formulation of 3CH3 NH3 I:0.98PbCl2 :0.02PbI2 , this study achieves a 19.1% current-voltage measured power conversion efficiency and a 17.2% stabilized power output in regular planar heterojunction solar cells. |
| first_indexed | 2024-03-07T04:42:14Z |
| format | Journal article |
| id | oxford-uuid:d20dbbf7-7118-4a29-a3c2-8bcc5980bfc8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:42:14Z |
| publishDate | 2017 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:d20dbbf7-7118-4a29-a3c2-8bcc5980bfc82022-03-27T08:01:05ZControlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d20dbbf7-7118-4a29-a3c2-8bcc5980bfc8EnglishSymplectic Elements at OxfordWiley2017Sakai, NWang, ZBurlakov, VLim, JMcMeekin, DPathak, SSnaith, HMetal halide perovskite thin films can be crystallized via a broad range of solution-based routes. However, the quality of the final films is strongly dependent upon small changes in solution composition and processing parameters. Here, this study demonstrates that a fractional substitution of PbCl2 with PbI2 in the 3CH3 NH3 I:PbCl2 mixed-halide starting solution has a profound influence upon the ensuing thin-film crystallization. The presence of PbI2 in the precursor induces a uniform distribution of regular quadrilateral-shaped CH3 NH3 PbI3 perovskite crystals in as-cast films, which subsequently grow to form pinhole-free perovskite films with highly crystalline domains. With this new formulation of 3CH3 NH3 I:0.98PbCl2 :0.02PbI2 , this study achieves a 19.1% current-voltage measured power conversion efficiency and a 17.2% stabilized power output in regular planar heterojunction solar cells. |
| spellingShingle | Sakai, N Wang, Z Burlakov, V Lim, J McMeekin, D Pathak, S Snaith, H Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title | Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title_full | Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title_fullStr | Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title_full_unstemmed | Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title_short | Controlling nucleation and growth of metal halide perovskite thin films for high-Efficiency perovskite solar cells |
| title_sort | controlling nucleation and growth of metal halide perovskite thin films for high efficiency perovskite solar cells |
| work_keys_str_mv | AT sakain controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT wangz controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT burlakovv controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT limj controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT mcmeekind controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT pathaks controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells AT snaithh controllingnucleationandgrowthofmetalhalideperovskitethinfilmsforhighefficiencyperovskitesolarcells |