Publications

2007

Zhao, Z., K. R. Lantz, C. Yi, and A. D. Stiff-Roberts. “Doping effect on carrier occupation and transport in InAs/GaAs quantum dot infrared photodetectors: A capacitance-voltage spectroscopy study.” Conference on Lasers and Electro-Optics, 2007, CLEO 2007, December 1, 2007. https://doi.org/10.1109/CLEO.2007.4453433.

Zhao, Z., K. R. Lantz, C. Yi, and A. D. Stiff-Roberts. “Doping effect on carrier occupation and transport in InAs/GaAs quantum dot infrared photodetectors: A capacitance-voltage spectroscopy study.” Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series, December 1, 2007. https://doi.org/10.1109/QELS.2007.4431210.

Yang, H., L. Chen, Z. Qiang, W. Zhou, W. Zhang, A. Stiff-Roberts, S. Krishna, and G. J. Brown. “Characteristics of photonic crystal cavity based infrared photodetectors.” Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, December 1, 2007, 36–37. https://doi.org/10.1109/LEOS.2007.4382262.

Zhao, Z. Y., W. M. Zhang, C. Yi, A. D. Stiff-Roberts, B. J. Rodriguez, and A. P. Baddorf. “Doping characterization of InAs/GaAs quantum dot heterostructure by cross-sectional scanning capacitance microscopy.” Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, December 1, 2007, 32–33. https://doi.org/10.1109/LEOS.2007.4382260.

Zhao, Z. Y., C. Yi, A. D. Stiff-Roberts, A. J. Hoffman, D. Wasserman, and C. Gmachl. “Probing dopant incorporation in InAs/GaAs QDIPs by polarization-dependent Fourier transform infrared spectroscopy.” Infrared Physics and Technology 51, no. 2 (October 1, 2007): 131–35. https://doi.org/10.1016/j.infrared.2007.04.002.

Stiff Roberts, A. D., W. Zhang, J. Xu, H. Peng, and H. O. Everitt. “Spin-cast Deposition of CdSe-CdS Core-shell Colloidal Quantum Dots on Doped GaAs Substrates: Structural and Optical Characterization.” IEEE Transactions on Nanotechnology 6 (July 2007): 413–20.

Zhao, Z. Y., C. Yi, K. R. Lantz, and A. D. Stiff-Roberts. “Effect of donor-complex-defect-induced dipole field on InAs/GaAs quantum dot infrared photodetector activation energy.” Applied Physics Letters 90, no. 23 (June 28, 2007). https://doi.org/10.1063/1.2747199.

Zhao, Z. Y., C. Yi, A. D. Stiff-Roberts, A. J. Hoffman, D. Wasserman, and C. Gmachl. “DX -like centers in InAsGaAs QDIPs observed by polarization-dependent Fourier transform infrared spectroscopy.” Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 25, no. 3 (June 11, 2007): 1108–12. https://doi.org/10.1116/1.2484803.

Stiff-Roberts, A. D. “Hybrid nanomaterials for multi-spectral infrared photodetection.” International Journal of High Speed Electronics and Systems 17, no. 1 (March 1, 2007): 165–72. https://doi.org/10.1142/S0129156407004382.

Lantz, K. R., and A. D. Stiff-Roberts. “Fourier transform infrared absorbance and photoluminescence spectroscopy studies of CdSe colloidal quantum dot/conducting polymer nanocomposites for application to infrared photodetectors.” Materials Research Society Symposium Proceedings 1015 (January 1, 2007): 113–18. https://doi.org/10.1557/proc-1015-bb06-12.

Zhao, Z., K. R. Lantz, C. Yi, and A. D. Stiff-Roberts. “Doping effect on carrier occupation and transport in InAs/GaAs quantum dot infrared photodetectors: A capacitance-voltage spectroscopy study.” Optics InfoBase Conference Papers, January 1, 2007.

Zhao, Z., K. R. Lantz, C. Yi, and A. D. Stiff-Roberts. “Doping effect on carrier occupation and transport in InAs/GaAs quantum dot infrared photodetectors: A capacitance-voltage spectroscopy study.” Optics InfoBase Conference Papers, January 1, 2007.

Zhao, Z., K. R. Lantz, C. Yi, and A. D. Stiff-Roberts. “Doping effect on carrier occupation and transport in InAs/GaAs quantum dot infrared photodetectors: A capacitance-voltage spectroscopy study.” Optics InfoBase Conference Papers, January 1, 2007.

2006

Bhattacharya, P., A. D. Stiff-Roberts, and S. Chakrabarti. “Mid-infrared quantum dot photodetectors.” Springer Series in Optical Sciences 118 (December 11, 2006): 487–513. https://doi.org/10.1007/1-84628-209-8_15.

Stokes, E. B., A. D. Stiff-Roberts, and C. T. Dameron. “Quantum dots in semiconductor optoelectronic devices.” Electrochemical Society Interface 15, no. 4 (December 1, 2006): 23–27.

Stiff-Roberts, A. D., Z. Zhao, and C. Yi. “Control of dopant incorporation in InAs/GaAs quantum dots for infrared photodetection with low dark current.” Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006, December 1, 2006. https://doi.org/10.1109/CLEO.2006.4628283.

Stiff-Roberts, A. D., A. Gupta, and Z. Zhao. “Optical characterization of CdSe colloidal quantum dot/ MEH-PPV polymer nanocomposites spin-cast on GaAs substrates.” Materials Research Society Symposium Proceedings 939 (January 1, 2006): 8–13. https://doi.org/10.1557/proc-0939-o02-04.

2005

Wu, Z. K., H. Choi, T. B. Norris, A. Stiff-Roberts, and P. Bhattacharya. “Ultrafast electronic dynamics in unipolar n-doped InAs/GaAs quantum dot structures.” Quantum Electronics and Laser Science Conference (QELS) 1 (October 31, 2005): 551–53.

Chakrabarti, S., A. D. Stiff-Roberts, X. H. Su, P. Bhattacharya, G. Ariyawansa, and A. G. U. Perera. “High-performance mid-infrared quantum dot infrared photodetectors.” Journal of Physics D: Applied Physics 38, no. 13 (July 7, 2005): 2135–41. https://doi.org/10.1088/0022-3727/38/13/009.

Stiff-Roberts, A. D., S. Chakrabarti, S. U. Xiaohua, and P. Bhattacharya. “Research propels quantum dots forward.” Laser Focus World 41, no. 5 (May 1, 2005): 103–8.

Wu, Z. K., H. Choi, T. B. Norris, A. Stiff-Roberts, and P. Bhattacharya. “Ultrafast electronic dynamics in unipolar n-doped InAs/GaAs quantum dot structures.” Optics InfoBase Conference Papers, January 1, 2005.

2004

Su, X. H., A. D. Stiff-Roberts, S. Chakrabarti, J. Singh, and P. Bhattacharya. “Resonant tunneling quantum dot infrared photodetector (RT-QDIP): Separating dark current and photocurrent.” Device Research Conference - Conference Digest, DRC, December 1, 2004, 81–82. https://doi.org/10.1109/DRC.2004.1367793.

Bhattacharya, P., S. Ghosh, and A. D. Stiff-Roberts. “Quantum dot opto-electronic devices.” Annual Review of Materials Research 34 (September 6, 2004): 1–40. https://doi.org/10.1146/annurev.matsci.34.040203.111535.

Su, X. H., S. Chakrabarti, A. D. Stiff-Roberts, J. Singh, and P. Bhattacharya. “Quantum dot infrared photodetector design based on double-barrier resonant tunnelling.” Electronics Letters 40, no. 17 (August 19, 2004): 1082–83. https://doi.org/10.1049/el:20045206.

Chakrabarti, S., A. D. Stiff-Roberts, P. Bhattacharya, S. Gunapala, S. Bandara, S. B. Rafol, and S. W. Kennerly. “High-temperature operation of InAs-GaAs quantum-dot infrared photodetectors with large responsivity and detectivity.” IEEE Photonics Technology Letters 16, no. 5 (May 1, 2004): 1361–63. https://doi.org/10.1109/LPT.2004.825974.