A5034556803- Conducting polymers and applications
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Copper-based nanomaterials and applications
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Organic Electronics and Photovoltaics
- Gas Sensing Nanomaterials and Sensors
- Advanced battery technologies research
- ZnO doping and properties
- Fuel Cells and Related Materials
- Material Properties and Applications
- Catalytic Processes in Materials Science
University of Tsukuba
2021-2025
Nagoya University
1973
This work provides an efficient way to facilitate both electron and hole extraction in the designated interfaces of perovskite solar cells. A record power conversion efficiency 23.6% for mixed Sn–Pb cell devices is realized.
Sn-based perovskite solar cells (PSCs) have attracted attention because of their low environmental impact. Unfortunately, the readily occurring oxidation Sn2+ inhibits further improvement efficiency and stability. Ruddlesden–Popper (RP) perovskites are considered promising candidates as absorbers that improve performance stability PSCs. However, microscopic understanding performance-enhancing mechanisms remains insufficient. For this study, electron spin resonance (ESR) spectroscopy...
Abstract Light-emitting electrochemical cells (LECs) are next-generation devices that flexible, emit light and have several advantages over organic light-emitting diodes, such as a simpler structure lower cost. However, the operation mechanism of LECs remains unknown from microscopic viewpoint. Here, we perform an operando investigation with Super Yellow, typical material, by observing spin states electrically doped charges using electron resonance. The resonance emission increase voltage...
Abstract Carrier extraction is a key issue which limits the efficiency of perovskite solar cells. In this work, carrier improved by modifying layers with combination ethylenediammonium diiodide post-treatment and glycine hydrochloride additive. Ethylenediammonium dications primarily affect top surface films, while glycinium cations preferentially accumulate at bottom region. The interface modifications improve crystallinity films lower density electrical traps via passivation effects,...
<title>Abstract</title> Sn-based perovskite solar cells (PSCs) have attracted attention because of their low environmental impact. Unfortunately, the readily occurring oxidation Sn<sup>2+</sup> inhibits further improvement efficiency and stability. Ruddlesden–Popper (RP) perovskites are considered promising candidates as absorbers that improve performance stability PSCs. However, microscopic understanding performance-enhancing mechanisms remains insufficient. For this study, electron spin...
A series of boron-doped cerium−bismuth oxide (CBO) solid solutions were fabricated by combustion method using unimolecular mixture nitrides cerium and bismuth in presence fuel i.e., urea at low temperature 300oC. The product possesses Bi3+ ion Ce3+ crystallized a fluorite FCC phase particle size 32 nm. . As-produced fine yellow powder crystallize almost 13-32 nm needle clustered cotton wool form. photocatalytic water splitting activity was observed for the entire B-doped CBO maximum hydrogen...
高分子固体が加熱を受け熱分解を起こすことによって, それに隣接する壁の温度上昇が抑制される過程を伝熱的見地より検討するために, ポリブロビレン粘土混合試料について, 球および2種の芯 (レンガおよびアルミニウム) のまわりに試料を被覆した複合円柱にっいて, 310～700℃の加熱温度範囲で熱分解実験を行なうとともに, 総括比熱の概念を用いて解析を行なった。その結果, 試料内温度分布を比較的よく説明することができ, 吸熱反応による冷却の効果が確かめられた。