Spiro-MeOTAD
(Synonyms: 2,2',7,7'-四[N,N-二(4-甲氧基苯基)氨基]-9,9'-螺二芴) 目录号 : GC44942
A hole-transport material
Cas No.:207739-72-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Spiro-MeOTAD is a stable and efficient hole-transport material in organic light-emitting devices and in solid-state dye-sensitized solar cells (ssDSSCs). It yields higher ssDSSC efficiency compared to the liquid electrolyte for DSSC solar cells due to its reasonable charge carrier mobility and its amorphous nature and high solubility, which enables excellent infiltration into mesoporous titania films. Neutral spiro-MeOTAD absorbs light in the UV region of the spectrum, while its oxidized forms exhibit strong absorptions throughout the visible and near-infrared ranges.
| Cas No. | 207739-72-8 | SDF | |
| 别名 | 2,2',7,7'-四[N,N-二(4-甲氧基苯基)氨基]-9,9'-螺二芴 | ||
| Canonical SMILES | COC(C=C1)=CC=C1N(C2=CC=C(OC)C=C2)C(C=C3)=CC4=C3C(C=CC(N(C5=CC=C(OC)C=C5)C6=CC=C(OC)C=C6)=C7)=C7C48C(C=C(N(C9=CC=C(OC)C=C9)C%10=CC=C(OC)C=C%10)C=C%11)=C%11C%12=C8C=C(N(C%13=CC=C(OC)C=C%13)C%14=CC=C(OC)C=C%14)C=C%12 | ||
| 分子式 | C81H68N4O8 | 分子量 | 1225.4 |
| 溶解度 | DMF: 10 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 0.8161 mL | 4.0803 mL | 8.1606 mL |
| 5 mM | 0.1632 mL | 0.8161 mL | 1.6321 mL |
| 10 mM | 0.0816 mL | 0.408 mL | 0.8161 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Challenges for Thermally Stable Spiro-MeOTAD toward the Market Entry of Highly Efficient Perovskite Solar Cells
ACS Appl Mater Interfaces 2022 Aug 3;14(30):34220-34227.PMID:35076216DOI:10.1021/acsami.1c21852.
Perovskite solar cells (PSCs) have drawn great attention because they have seen a dramatic increase in power conversion efficiency (PCE) over only a decade and reached 25.5% of certified PCE in 2021. The efficiency competitiveness with a low production cost puts up PSCs as a candidate for next-generation photovoltaics, encouraging the stability assessment. Research on PSCs, however, still struggles with the stability issue, particularly at elevated temperature, which is mainly ascribed to the use of Spiro-MeOTAD as a hole transport material (HTM). Though many attempts have been made to explore a new HTM to replace Spiro-MeOTAD, the improved stability is mostly obtained at the expense of losing efficiency. Likewise, the question of the effectiveness of alternatives for Spiro-MeOTAD consistently remains. In this perspective, the morphological stability of Spiro-MeOTAD at elevated temperatures is discussed to determine the underlying origins of the thermal stability issue and find feasible strategies to resolve it.
Morphology Control of Doped Spiro-MeOTAD Films for Air Stable Perovskite Solar Cells
Small 2020 May;16(18):e1907513.PMID:32307895DOI:10.1002/smll.201907513.
Doped 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene (Spiro-MeOTAD), which acts as a hole-transporting layer (HTL), endows perovskite solar cells (PSCs) with excellent performance. However, the intrinsically hygroscopic nature of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) dopants also aggravates the moisture instability of PSCs. In this work, the origins of the moisture instability of Spiro-MeOTAD HTLs are explored and strategies to enhance moisture resistance are proposed. After 780 h of aging in air, 52% of the initial power conversion efficiency (PCE) can be sustained by prolonging the mixing time of the precursor solution of Spiro-MeOTAD to reduce accumulated LiTFSI. In contrast, only 7% of the initial PCE remains if the precursor solution is mixed briefly. By thermally annealing an HTL to evaporate residual tBP in Spiro-MeOTAD, pinholes are completely eliminated and 65% of the initial PCE remains after the same aging time. In this study, the significance of the initial morphology of Spiro-MeOTAD HTLs on device stability is analyzed and strategies based on physical morphology for controlling PSC moisture instability induced by HTL dopants are developed.
A Spiro-MeOTAD/Ga2O3/Si p-i-n Junction Featuring Enhanced Self-Powered Solar-Blind Sensing via Balancing Absorption of Photons and Separation of Photogenerated Carriers
ACS Appl Mater Interfaces 2021 Dec 8;13(48):57619-57628.PMID:34806380DOI:10.1021/acsami.1c18229.
Solar blind ultraviolet (SBUV) self-powered photodetectors (PDs) have a great number of applications in civil and military exploration. Ga2O3 is a prospective candidate for SBUV detection owing to its reasonable bandgap corresponding to the SBUV waveband. Nevertheless, the previously reported Ga2O3 photovoltaic devices had low photoresponse performance and were still far from the demands of practical application. Herein, we propose an idea of using Spiro-MeOTAD (spiro) as the SBUV transparent conductive layer to construct p-i-n PDs (p-spiro/Ga2O3/n-Si). With the aid of double built-in electric fields, the designed p-i-n PDs could operate without any external power source. Furtherly, the influence of spiro thickness on improving the photoelectric performance of devices is investigated in detail and the optimum device is achieved, translating to a peak responsivity of 192 mA/W upon a weak 254 nm light illumination of 2 μW/cm2 at zero bias. In addition, the I-t curve of our PD shows binary response characteristics and a four-stage current response behavior under a small forward bias, and also, its underlying working mechanism is analyzed. In sum, this newly developed device presents great potential for booming the high energy-efficient optoelectronic devices in the short run.
Improved Photoresponse Performance of Self-Powered ZnO/Spiro-MeOTAD Heterojunction Ultraviolet Photodetector by Piezo-Phototronic Effect
ACS Appl Mater Interfaces 2016 Mar 9;8(9):6137-43.PMID:26872101DOI:10.1021/acsami.5b12870.
Strain-induced piezoelectric potential (piezopotential) within wurtzite-structured ZnO can engineer the energy-band structure at a contact or a junction and, thus, enhance the performance of corresponding optoelectronic devices by effectively tuning the charge carriers' separation and transport. Here, we report the fabrication of a flexible self-powered ZnO/Spiro-MeOTAD hybrid heterojunction ultraviolet photodetector (UV PD). The obtained device has a fast and stable response to the UV light illumination at zero bias. Together with responsivity and detectivity, the photocurrent can be increased about 1-fold upon applying a 0.753% tensile strain. The enhanced performance can be attributed to more efficient separation and transport of photogenerated electron-hole pairs, which is favored by the positive piezopotential modulated energy-band structure at the ZnO-Spiro-MeOTAD interface. This study demonstrates a promising approach to optimize the performance of a photodetector made of piezoelectric semiconductor materials through straining.
Oxygen-induced doping of Spiro-MeOTAD in solid-state dye-sensitized solar cells and its impact on device performance
Nano Lett 2012 Sep 12;12(9):4925-31.PMID:22913390DOI:10.1021/nl302509q.
Solid state dye-sensitized solar cells (sDSCs) employing the hole conductor 2,2'7,7'-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9'-spirobifluorene (Spiro-MeOTAD) require the presence of oxygen during fabrication and storage. In this paper, we determine the concentrations of oxidized Spiro-MeOTAD within devices under different operating and storage conditions by UV-vis spectroscopy. Relative concentrations of Spiro-MeOTAD(+) were found to be greater than 10% after illumination for standard sDSCs, where no chemical dopant had been used in the solar cell fabrication but oxygen and lithium ions were present. We suggest that oxidized Spiro-MeOTAD is created as a byproduct of oxygen reduction at the TiO(2) surface during cell illumination. Furthermore, we studied the effect of light soaking under different conditions and associated changes in Spiro-MeOTAD(+) concentration on the solar cell measurements. Our findings give insights to photochemical reactions occurring within sDSCs and provide guidelines for which doping levels should be used in device fabrication in absence of oxygen.