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In this paper, we have demonstrated an efficient perovskite light-emitting device (PeLED) by improving perovskite crystallization. The improved perovskite crystallization has been achieved by pretreating the underneath poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) layer with N, N-dimethylformamide (DMF) solvent before single-step spin-coating the perovskite, which results...
Stretchability, efficiency and mechanical robustness of stretchable organic light-emitting devices (OLEDs) are key issues for their applications in wearable electronics. Although high stretchability has been demonstrated, the efficiency and mechanical stability remain far below the practical requirement due to the significant challenges in materials, structures and controllability of the stretch-release...
For discontinuous-working devices, storage and work states may appear alternately. The health state of the device can be monitored by observing key performance parameters in engineering, which can be also taken as a basis to predict and analyze life and reliability of the device. For this kind of device, this paper comprehensively analyzes performance degradation mechanism in storage and working conditions,...
Efficient and accurate performance evaluation is a challenge for many application areas. Information fusion is a widely used technology for this issue. Most existing information fusion methods have the requirement of taking a large sample into consideration. However, only small-scale experiments can be carried out for performance evaluation due to relatively severe resource constraints. To address...
Based on Cheng-Liu-Wang identity-based signature scheme and Baek-Zheng pairing-based verifiable secret sharing scheme, a new secure monitoring scheme using identity-based threshold signcryption scheme for wireless sensor networks is proposed. The goal of this scheme is to provide a confidential and authenticated transmission channel for monitoring messages sent by nodes to BS over an insecure wireless...
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