Jianhua Zhang

Feb 27, 2025 | mdpi.com | Lina Yang |Can Tang |Yan Cui |Jianhua Zhang

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Jan 11, 2025 | nature.com | Baozhong Deng |Yi Li |Kaiwen Zheng |Shenghao Wang |Jianhua Zhang |Furong Zhu | +4 more

The artistic and scientific perspectives of the translucent color organic solar cells (OSCs), made with the emerging narrowband nonfullerene acceptors are explored. The translucent color OSCs, comprising a Fabry–Pérot microcavity optical coupling layer, have a power conversion efficiency of >15% and a maximum transparency of >20% for the three primary colors. The performance−color relationship of the translucent color OSCs is analyzed using a combination of high-throughput optical computing and experimental optimization, allowing light with desired color to pass through, while absorbing enough light to generate electricity. Replication of Piet Mondrian’s artwork “Composition C (1920)” is demonstrated using a 10 × 10 cm2-sized translucent OSC module with a wide palette of colors and hues. The outcome of the work offers an opportunity for translucent color OSCs to function as both esthetic art and power generating windowpanes for use in our homes, offices, and even greenhouses. The realization of translucent color organic solar cells with competitive efficiency, visible transparency and hue remains a critical challenge. Here, the authors fabricate translucent organic solar cells with a Fabry–Pérot microcavity optical coupling layer for applications in science and art.

Jan 3, 2025 | mdpi.com | Jianhua Zhang

2.3. Quick-Release MechanismAs depicted in Figure 3b, to facilitate rapid verification and design iterations, the components of the quick-release mechanism were manufactured using 3D printing with nylon and metal materials. Lubricant was applied between the transmission parts to reduce frictional losses. The mechanism is driven by a DC-geared motor, which controls the deployment and rapid retraction of the landing gear by winding and quickly releasing a cable.

Dec 23, 2024 | mdpi.com | Jianhua Zhang

2. Mechanism Analysis of Yoshimura Tubular Origami 2.1. Crease Shape ElementsThe Yoshimura two-dimensional crease pattern is composed of element blocks and expansion blocks, which are named after commonly used components in the field of Yoshimura origami, as shown in Figure 1. These two types of blocks can be repeatedly folded outward or inward, along mountain lines or valley lines. This paper focuses on exploring the most common six-element Yoshimura origami mechanism.

Dec 5, 2024 | mdpi.com | Jianhua Zhang |Rong Liu |Haoran Wang |Yi He

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.