Investigation on Thermal Degradation Process of Polymer Solar Cells Based on Blend of PBDTTT-C and <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.4584pt" id="M1" height="16.351pt" version="1.1" viewBox="0 -11.8926 34.7371 16.351" width="34.7371pt"><g transform="matrix(.018,0,0,-0.018,0,0)"><path id="g190-81" d="M46 650V622C120 617 128 613 128 525V125C128 42 120 34 40 28V0H311V28C221 34 212 39 212 124V281L286 262C297 261 316 261 331 263C429 275 526 338 526 468C526 533 501 579 462 609C422 638 364 650 293 650H46ZM212 559C212 588 215 600 223 606C230 613 251 618 279 618C361 618 430 572 430 464C430 337 350 302 285 302C252 302 225 309 212 314V559Z"></path></g><g transform="matrix(.018,0,0,-0.018,10.069,0)"><path id="g190-68" d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z"></path></g><g transform="matrix(.013,0,0,-0.013,22.044,4.308)"><path id="g22-53" d="M482 623L67 622C60 580 54 527 40 445H81C108 505 116 513 184 513H391C306 352 206 176 87 2L95 -12L203 0C294 205 397 410 492 611L482 623Z"></path></g><g transform="matrix(.013,0,0,-0.013,28.391,4.308)"><path id="g22-46" d="M255 635C86 635 29 459 29 311C29 167 83 -12 254 -12S478 166 478 312C478 457 425 635 255 635ZM252 588C317 588 338 455 338 314C338 176 322 35 256 35C191 35 169 183 169 315C169 448 185 588 252 588Z"></path></g></svg>BM

<table>(a) Molecular structures of PBDTTT-C and PC<sub>70</sub>BM. (b) The structure of the inverted polymer solar cell. (c) The structure of the conventional polymer solar cell.</table>

International Journal of Photoenergy

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Figure 1

Figure 1: Investigation on Thermal Degradation Process of Polymer Solar Cells Based on Blend of PBDTTT-C and <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.4584pt" id="M1" height="16.351pt" version="1.1" viewBox="0 -11.8926 34.7371 16.351" width="34.7371pt"><g transform="matrix(.018,0,0,-0.018,0,0)"><path id="g190-81" d="M46 650V622C120 617 128 613 128 525V125C128 42 120 34 40 28V0H311V28C221 34 212 39 212 124V281L286 262C297 261 316 261 331 263C429 275 526 338 526 468C526 533 501 579 462 609C422 638 364 650 293 650H46ZM212 559C212 588 215 600 223 606C230 613 251 618 279 618C361 618 430 572 430 464C430 337 350 302 285 302C252 302 225 309 212 314V559Z"></path></g><g transform="matrix(.018,0,0,-0.018,10.069,0)"><path id="g190-68" d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z"></path></g><g transform="matrix(.013,0,0,-0.013,22.044,4.308)"><path id="g22-53" d="M482 623L67 622C60 580 54 527 40 445H81C108 505 116 513 184 513H391C306 352 206 176 87 2L95 -12L203 0C294 205 397 410 492 611L482 623Z"></path></g><g transform="matrix(.013,0,0,-0.013,28.391,4.308)"><path id="g22-46" d="M255 635C86 635 29 459 29 311C29 167 83 -12 254 -12S478 166 478 312C478 457 425 635 255 635ZM252 588C317 588 338 455 338 314C338 176 322 35 256 35C191 35 169 183 169 315C169 448 185 588 252 588Z"></path></g></svg>BM 

International Journal of Photoenergy

Investigation on Thermal Degradation Process of Polymer Solar Cells Based on Blend of PBDTTT-C and BM

Figure 1