首页|Variation of Shannon Information Entropy of Triboelectric Nanogenerators and Analysis of Their Landauer Limit
Variation of Shannon Information Entropy of Triboelectric Nanogenerators and Analysis of Their Landauer Limit
Fei Zhong Jian Zhang Lejin Meng Shaoyi Hu Xin Luan Siyu Zhang Xin Yu Yang Liu Xiao Zhang
Variation of Shannon Information Entropy of Triboelectric Nanogenerators and Analysis of Their Landauer Limit
Variation of Shannon Information Entropy of Triboelectric Nanogenerators and Analysis of Their Landauer Limit
摘要
The triboelectric nanogenerator (TENG) is an important device for converting mechanical energy into electrical energy, yet its interfacial charge evolution and output formation process exhibit pronounced stochasticity and non-equilibrium statistical features. While existing studies primarily focus on material properties, electrical responses, and contact electrification mechanisms, there is a lack of quantitative characterization of the state evolution, the transition from high entropy to low entropy, and the associated energy constraints during the output formation process. This work innovatively introduces Shannon information entropy theory to quantify the working process of TENGs. We establish a microstate charge-state probability model under interface discretization; from a Shannon information entropy perspective, we describe the system’s evolution from disorder to order, from high entropy to low entropy, and, with the aid of Landauer’s principle, link Shannon entropy to the output energy, enabling the computation of the minimum energy bound corresponding to the entropy-reduction of the TENG. The results indicate that externally driven mechanical processes yield a dynamically evolving distribution of interfacial charges, with Shannon entropy decreasing as the system orders, thereby yielding the corresponding expression for the TENG output energy bound. The cross-disciplinary framework of “charge-state probability distribution—Shannon information entropy—energy bound” integrates classical information theory with Landauer’s principle within the extended Maxwell equations framework developed by Academician Zhonglin Wang. This approach breaks through the limitations of traditional analyses confined to a single electrical dimension, constructing a unified theory that connects microscopic charges to macroscopic energy and establishing an integrated universal analytical method spanning classical information theory, information physics, and nano-energy science.
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