1：Experimental Design and Method Selection:

The study designed coplanar-type all-organic transistors using ionic thermoplastic polyurethane (i-TPU) as a solid-state elastomer electrolyte. The transfer method was employed for device fabrication to ensure compatibility and ease of detachment from substrates. Theoretical models for bending characteristics and electric double layer formation were used.

2：Sample Selection and Data Sources:

Materials included TPU (KA-480), ionic liquid [EMIM]+[TFSI]?, PEDOT:PSS (Clevios PH1000), and PTB7-Th semiconductor. Samples were prepared with specific weight ratios and processed under controlled conditions.

3：List of Experimental Equipment and Materials:

Equipment included a UV–vis–NIR spectrophotometer (UV-3600 SHIMADZU), Universal Testing Machine (Instron), precision LCR meter (E4980a, Agilent Technologies), MS TECH vacuum probe station, Keithley 4200 semiconductor parameter analyzer, drop shape analysis system (DSA 100, KRUSS), sheet resistivity meter (ZRM-202, JAESUNG), optical microscope (BX51, OLYMPUS), FE-SEM (SIGMA, Zeiss), AFM (Multimode, Veeco), and 2-axis motion controllers (STM-2-USB, ST1) with bending machine system (ST-BJS-0810-SSU, ST1). Materials were sourced from KOLON INDUSTRIES, Sigma-Aldrich, and Ossila.

4：1). Materials were sourced from KOLON INDUSTRIES, Sigma-Aldrich, and Ossila. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: i-TPU films were prepared by dissolving TPU in DMF, blending with ionic liquid, and vacuum drying. Devices were fabricated using the transfer method: ODTS SAM treatment on Si/SiO2 substrates, deposition of Au or PEDOT:PSS electrodes and PTB7-Th semiconductor, annealing, and transfer onto i-TPU films. Electrical and mechanical tests were conducted under various strains and bending conditions.

5：Data Analysis Methods:

Electrical characteristics (mobility, on/off current, threshold voltage) were measured using semiconductor parameter analyzers. Mechanical properties were evaluated through tensile tests and bending experiments. Data were analyzed for performance under strain, with normalization and statistical evaluation of changes.