Room Temperature Processed Transparent Amorphous InGaTiO Cathodes for Semi-Transparent Perovskite Solar Cells
| Autor: | Han-Ki Kim, Do-Hyung Kim, Su-Kyung Kim, Dong-Hyeok Choi, Hae-Jun Seok, Sang-Hwi Lim |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Opacity business.industry Direct current 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Cathode 0104 chemical sciences Amorphous solid law.invention Sputtering law Electrode Optoelectronics General Materials Science 0210 nano-technology business Sheet resistance Perovskite (structure) |
| Zdroj: | ACS Applied Materials & Interfaces. 13:27353-27363 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.1c02327 |
| Popis: | In order to ensure high-performance semitransparent perovskite solar cells (ST-PSCs), the deposition of high-quality scalable transparent cathodes on ST-PSCs at room temperature is necessary. In this study, we designed an amorphous InGaTiO (IGTO) electrode, prepared by linear facing target sputtering (LFTS) as a transparent cathode for ST-PSCs. Even in the room temperature sputtering process, the amorphous IGTO cathode showed a low sheet resistance of 9.895 Ohm/square and a high optical transmittance of 87.53% without the occurrence of in situ or postannealing, unlike Sn-doped In2O3 (ITO) electrodes. Due to its complete amorphous structure and low energy sputtering, the amorphous IGTO electrode showed superior mechanical properties, when compared to other typical crystalline ITO films. Additionally, the LFTS process led to a low energy deposition of the amorphous IGTO cathode on ST-PSCs, and did not result in plasma damage on perovskite active layers, which is often typical in conventional situations of direct current sputtering. On the basis of these optimized plasma damage-free sputtering conditions, we examined the feasibility of LFTS-grown IGTO cathodes for ST-PSCs. In our results, we observed that a similar performance of the ST-PSC with an IGTO cathode with the opaque PSC with Ag cathode, indicated that amorphous IGTO cathode is a prospective transparent cathode for ST-PSCs on both rigid or flexible substrates. |
| Databáze: | OpenAIRE |
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